Hydrogen fluoride FH Properties,Formula,Price, Uses

What is Hydrogen fluoride

**Introduction to Hydrogen Fluoride (HF)** Hydrogen fluoride (HF) is a highly reactive and corrosive inorganic compound composed of hydrogen and fluorine. It exists as a colorless gas or liquid with a sharp, pungent odor and is widely used in industrial applications. HF is a key raw material in the production of fluorocarbons, refrigerants, and aluminum fluoride, as well as in petroleum refining and uranium processing. Due to its ability to dissolve glass and metals, it is also utilized in etching, cleaning, and semiconductor manufacturing. However, HF is extremely hazardous, causing severe burns and systemic toxicity upon exposure, requiring strict safety measures. Proper handling, storage, and protective equipment are essential when working with this potent chemical.

Preparation Process: Hydrogen fluoride (HF) is prepared by reacting calcium fluoride (CaF₂) with concentrated sulfuric acid (H₂SO₄). In a lead or platinum-lined vessel, finely powdered CaF₂ is mixed with H₂SO₄ and heated to 250–300°C. The reaction produces HF gas and calcium sulfate (CaSO₄) as a byproduct. The gaseous HF is then condensed into a liquid or dissolved in water to form aqueous hydrofluoric acid. The process requires careful handling due to HF’s extreme toxicity and corrosiveness. Proper ventilation and corrosion-resistant equipment are essential. The reaction equation is: \[ \text{CaF}_2 + \text{H}_2\text{SO}_4 \rightarrow 2\text{HF} + \text{CaSO}_4 \]

Usage Scenarios: Hydrogen fluoride (HF) is widely used in industrial and chemical applications. It serves as a key precursor in the production of fluorine-containing compounds, including refrigerants, pharmaceuticals, and agrochemicals. In the petroleum industry, HF is employed as a catalyst in alkylation processes to produce high-octane gasoline. It is also used in etching glass, ceramics, and silicon wafers in electronics manufacturing. Additionally, HF plays a role in metal surface treatment and uranium enrichment. Despite its utility, HF is highly corrosive and toxic, requiring strict handling precautions. Its derivatives, such as hydrofluoric acid, are utilized in laboratory and industrial cleaning agents.

Hydrogen fluoride Basic Info

Chemical Name Hydrogen fluoride

Synonyms HF;HYDROFLUORIC ACID;Anhydrous hydrofluoric acid;hydrofluoric;Urea Hydrofluoride;HydrofL;Fluoric acid;Hydrofluoride;Hydrofluoric acid(HF);Hydrofluoric Acid, TraceGrade

CAS No. 7664-39-3

Molecular Formula FH

Molecular Weight 20.01

PSA 0.00000

LogP 0.53270

Safely Info

RTECS MW7875000

Hazard Class 8

Safety Statements 26-36/37/39-45-7/9-36/37-28-36

HS Code 28111100

WGK Germany 2

Packing Group II

RIDADR UN 1790 8/PG 2

Risk Statements 26/27/28-35-36/37/38-20/21/22

Hazard Codes T+,C,T,Xn

Caution Statement P260-P270-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338

Hazard Declaration H300+H310+H330-H314

Symbol GHS05,GHS06

Signal Word Danger

Hydrogen fluoride Price

Here is a rough price range for hydrogen fluoride (HF) in the listed countries. Note that prices can vary significantly based on purity, quantity, and market conditions. If no specific data is available, "No results" is indicated:

1. **United States**: $1,000 - $3,000 per metric ton
2. **China**: $800 - $2,500 per metric ton
3. **Russia**: $1,200 - $3,500 per metric ton
4. **Germany**: $1,500 - $3,500 per metric ton
5. **India**: $900 - $2,800 per metric ton
6. **Japan**: $1,800 - $4,000 per metric ton
7. **Brazil**: $1,000 - $3,000 per metric ton
8. **South Korea**: $1,500 - $3,500 per metric ton
9. **Philippines**: No results
10. **United Kingdom**: $1,500 - $3,500 per metric ton
11. **France**: $1,500 - $3,500 per metric ton
12. **Mexico**: $1,000 - $3,000 per metric ton
13. **Canada**: $1,200 - $3,500 per metric ton
14. **South Africa**: No results
15. **Egypt**: No results
16. **Turkey**: $1,000 - $3,000 per metric ton
17. **Thailand**: No results
18. **Indonesia**: No results

These ranges are approximate and subject to change based on market dynamics.

MSDS

SECTION 1: Identification of the substance/mixture and of the company/undertaking
  Product identifiers
    Product name        : Hydrofluoric acid
    REACH No.        : A registration number is not available for this substance as the substance
    or its uses are exempted from registration, the annual tonnage does not
    require a registration or the registration is envisaged for a later
    registration deadline.
    CAS-No.        : 7664-39-3
  Relevant identified uses of the substance or mixture and uses advised against
    Identified uses        : Laboratory chemicals, Manufacture of substances

SECTION 2: Hazards identification
  Classification of the substance or mixture
  Classification according to Regulation (EC) No 1272/2008
    Acute toxicity, Oral (Category 2), H300
    Acute toxicity, Inhalation (Category 2), H330
    Acute toxicity, Dermal (Category 1), H310
    Skin corrosion (Category 1A), H314
    For the full text of the H-Statements mentioned in this Section, see Section 16.
  Classification according to EU Directives 67/548/EEC or 1999/45/EC
    T+ Very toxic        R26/27/28
    C Corrosive        R35
    For the full text of the R-phrases mentioned in this Section, see Section 16.
  Label elements
  Labelling according Regulation (EC) No 1272/2008
    Pictogram
    Signal word        Danger
    Hazard statement(s)
    H300        Fatal if swallowed.
    H310        Fatal in contact with skin.
    H314        Causes severe skin burns and eye damage.
    H330        Fatal if inhaled.
    Precautionary statement(s)
    P260        Do not breathe dust/ fume/ gas/ mist/ vapours/ spray.
    P264        Wash hands thoroughly after handling.
    P280        Wear protective gloves/ protective clothing/ eye protection/ face
    protection.
    P284        Wear respiratory protection.
    P301 + P310        IF SWALLOWED: Immediately call a POISON CENTER or doctor/
    physician.
    P302 + P350        IF ON SKIN: Gently wash with plenty of soap and water.
    Supplemental Hazard        none
    Statements
  According to European Directive 67/548/EEC as amended.
    Hazard symbol(s)        T+ Very toxic
    C Corrosive
    R-phrase(s)
    R26/27/28        Very toxic by inhalation, in contact with skin and if swallowed.
    R35        Causes severe burns.
    S-phrase(s)
    S 7/9        Keep container tightly closed and in a well-ventilated place.
    S26        In case of contact with eyes, rinse immediately with plenty of water and
    seek medical advice.
    S36/37        Wear suitable protective clothing and gloves.
    S45        In case of accident or if you feel unwell, seek medical advice immediately
    (show the label where possible).
  Other hazards - none

SECTION 3: Composition/information on ingredients
  Mixtures
    Formula        : HF
    Molecular Weight        : 20,01 g/mol
  Hazardous ingredients according to Regulation (EC) No 1272/2008
    Component        Classification        Concentration
  Hydrofluoric acid
    CAS-No.        7664-39-3        Acute Tox. 2; Acute Tox. 1;        25 - 50 %
    EC-No.        231-634-8        Acute Tox. 2; Skin Corr. 1A;
    Index-No.        009-003-00-1        H300, H310, H314, H330
  Hazardous ingredients according to Directive 1999/45/EC
    Component        Classification        Concentration
  Hydrofluoric acid
    CAS-No.        7664-39-3        T+, C, R26/27/28 - R35        25 - 50 %
    EC-No.        231-634-8
    Index-No.        009-003-00-1
    For the full text of the H-Statements and R-Phrases mentioned in this Section, see Section 16

SECTION 4: First aid measures
  Description of first aid measures
  General advice
    Consult a physician. Show this safety data sheet to the doctor in attendance. Hydrofluoric (HF) acid burns
    require immediate and specialized first aid and medical treatment. Symptoms may be delayed up to 24
    hours depending on the concentration of HF. After decontamination with water, further damage can occur
    due to penetration/absorption of the fluoride ion. Treatment should be directed toward binding the fluoride
    ion as well as the effects of exposure. Skin exposures can be treated with a 2.5% calcium gluconate gel
    repeated until burning ceases. More serious skin exposures may require subcutaneous calcium gluconate
    except for digital areas unless the physician is experienced in this technique, due to the potential for tissue
    injury from increased pressure. Absorption can readily occur through the subungual areas and should be
    considered when undergoing decontamination. Prevention of absorption of the fluoride ion in cases of
    ingestion can be obtained by giving milk, chewable calcium carbonate tablets or Milk of Magnesia to
    conscious victims. Conditions such as hypocalcemia, hypomagnesemia and cardiac arrhythmias should be
    monitored for, since they can occur after exposure.
  If inhaled
    If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician.
  In case of skin contact
    Take off contaminated clothing and shoes immediately. Wash off with soap and plenty of water. Take
    victim immediately to hospital. Consult a physician.
  In case of eye contact
    Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician.
  If swallowed
    Do NOT induce vomiting. Never give anything by mouth to an unconscious person. Rinse mouth with
    water. Consult a physician.
  Most important symptoms and effects, both acute and delayed
    The most important known symptoms and effects are described in the labelling (see section 2.2) and/or in
    section 11
  Indication of any immediate medical attention and special treatment needed
    no data available

SECTION 5: Firefighting measures
  Extinguishing media
  Suitable extinguishing media
    Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
  Special hazards arising from the substance or mixture
    Hydrogen fluoride
  Advice for firefighters
    Wear self contained breathing apparatus for fire fighting if necessary.
  Further information
    no data available

SECTION 6: Accidental release measures
  Personal precautions, protective equipment and emergency procedures
    Wear respiratory protection. Avoid breathing vapours, mist or gas. Ensure adequate ventilation.
    Evacuate personnel to safe areas.
    For personal protection see section 8.
  Environmental precautions
    Prevent further leakage or spillage if safe to do so. Do not let product enter drains.
  Methods and materials for containment and cleaning up
    Soak up with inert absorbent material and dispose of as hazardous waste. Keep in suitable, closed
    containers for disposal.
  Reference to other sections
    For disposal see section 13.

SECTION 7: Handling and storage
  Precautions for safe handling
    Avoid contact with skin and eyes. Avoid inhalation of vapour or mist.
    Normal measures for preventive fire protection.
    For precautions see section 2.2.
  Conditions for safe storage, including any incompatibilities
    Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Containers which are
    opened must be carefully resealed and kept upright to prevent leakage.
  Specific end use(s)
    Apart from the uses mentioned in section 1.2 no other specific uses are stipulated

SECTION 8: Exposure controls/personal protection
  Control parameters
  Components with workplace control parameters
  Exposure controls
  Appropriate engineering controls
    Avoid contact with skin, eyes and clothing. Wash hands before breaks and immediately after handling
    the product.
  Personal protective equipment
  Eye/face protection
    Tightly fitting safety goggles. Faceshield (8-inch minimum). Use equipment for eye protection
    tested and approved under appropriate government standards such as NIOSH (US) or EN
    166(EU).
  Skin protection
    Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique
    (without touching glove's outer surface) to avoid skin contact with this product. Dispose of
    contaminated gloves after use in accordance with applicable laws and good laboratory practices.
    Wash and dry hands.
    The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and
    the standard EN 374 derived from it.
    Full contact
    Material: Chloroprene
    Minimum layer thickness: 0,6 mm
    Break through time: 480 min
    Material tested:Camapren® (KCL 722 / Z677493, Size M)
    Splash contact
    Material: Nitrile rubber
    Minimum layer thickness: 0,11 mm
    Break through time: 120 min
    Material tested:Dermatril® (KCL 740 / Z677272, Size M)
    data source: KCL GmbH, D-36124 Eichenzell, phone +49 (0)6659 87300,     test method: EN374
    If used in solution, or mixed with other substances, and under conditions which differ from EN 374,
    contact the supplier of the CE approved gloves. This recommendation is advisory only and must
    be evaluated by an industrial hygienist and safety officer familiar with the specific situation of
    anticipated use by our customers. It should not be construed as offering an approval for any
    specific use scenario.
  Body Protection
    Complete suit protecting against chemicals, The type of protective equipment must be selected
    according to the concentration and amount of the dangerous substance at the specific workplace.
  Respiratory protection
    Where risk assessment shows air-purifying respirators are appropriate use a full-face respirator
    with multi-purpose combination (US) or type ABEK (EN 14387) respirator cartridges as a backup
    to engineering controls. If the respirator is the sole means of protection, use a full-face supplied air
    respirator. Use respirators and components tested and approved under appropriate government
    standards such as NIOSH (US) or CEN (EU).
  Control of environmental exposure
    Prevent further leakage or spillage if safe to do so. Do not let product enter drains.

SECTION 9: Physical and chemical properties
  Information on basic physical and chemical properties
    a) Appearance        Form: liquid
    b) Odour        no data available
    c) Odour Threshold        no data available
    d) pH        no data available
    e) Melting point/freezing        no data available
    point
    f) Initial boiling point and no data available
    boiling range
    g) Flash point        no data available
    h) Evapouration rate        no data available
    i) Flammability (solid, gas) no data available
    j) Upper/lower        no data available
    flammability or
    explosive limits
    k) Vapour pressure        25 hPa at 20 °C
    l) Vapour density        1,27 - No information available.
    m) Relative density        1,15 g/cm3 at 25 °C
    n) Water solubility        no data available
    o) Partition coefficient: n- no data available
    octanol/water
    p) Auto-ignition        no data available
    temperature
    q) Decomposition        no data available
    temperature
    r) Viscosity        no data available
    s) Explosive properties        no data available
    t) Oxidizing properties        no data available
  Other safety information
    Relative vapour density 1,27

SECTION 10: Stability and reactivity
  Reactivity
    no data available
  Chemical stability
    Stable under recommended storage conditions.
  Possibility of hazardous reactions
    no data available
  Conditions to avoid
    no data available
  Incompatible materials
    no data available
  Hazardous decomposition products
    Other decomposition products - no data available
    In the event of fire: see section 5

SECTION 11: Toxicological information
  Information on toxicological effects
  Acute toxicity
  Skin corrosion/irritation
    no data available
  Serious eye damage/eye irritation
    no data available
  Respiratory or skin sensitisation
    no data available
  Germ cell mutagenicity
    no data available
  Carcinogenicity
    IARC:        No component of this product present at levels greater than or equal to 0.1% is identified as
    probable, possible or confirmed human carcinogen by IARC.
  Reproductive toxicity
    no data available
  Specific target organ toxicity - single exposure
    no data available
  Specific target organ toxicity - repeated exposure
    no data available
  Aspiration hazard
    no data available
  Additional Information
    RTECS: Not available
    Fluoride ion can reduce serum calcium levels possibly causing fatal hypocalcemia., Material can cause
    severe burns and blistering which may not be immediately painful or visible. The full extent of tissue
    damage may not exhibit itself for 12-24 hours after exposure., Material is extremely destructive to tissue of
    the mucous membranes and upper respiratory tract, eyes, and skin., necrosis of the skin

SECTION 12: Ecological information
  Toxicity
    no data available
  Persistence and degradability
    no data available
  Bioaccumulative potential
    no data available
  Mobility in soil
    no data available
  Results of PBT and vPvB assessment
    PBT/vPvB assessment not available as chemical safety assessment not required/not conducted
  Other adverse effects
    no data available

SECTION 13: Disposal considerations
  Waste treatment methods
  Product
    Offer surplus and non-recyclable solutions to a licensed disposal company. Contact a licensed
    professional waste disposal service to dispose of this material.
  Contaminated packaging
    Dispose of as unused product.

SECTION 14: Transport information
  UN number
    ADR/RID: 1790        IMDG: 1790        IATA: 1790
  UN proper shipping name
    ADR/RID: HYDROFLUORIC ACID
    IMDG: HYDROFLUORIC ACID
    IATA:        Hydrofluoric acid
  Transport hazard class(es)
    ADR/RID: 8 (6.1)        IMDG: 8 (6.1)        IATA: 8 (6.1)
  Packaging group
    ADR/RID: II        IMDG: II        IATA: II
  Environmental hazards
    ADR/RID: no        IMDG Marine pollutant: no        IATA: no
  Special precautions for user
    no data available

SECTION 15 - REGULATORY INFORMATION
N/A

SECTION 16 - ADDITIONAL INFORMATION
N/A

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1.Identification

1.1 GHS Product identifier

Product name	hydrogen fluoride

1.2 Other means of identification

Product number	-
Other names	\N

1.3 Recommended use of the chemical and restrictions on use

Identified uses	For industry use only. Inorganic substances
Uses advised against	no data available

1.4 Supplier's details

Company	MOLBASE (Shanghai) Biotechnology Co., Ltd.
Address	Floor 4 & 5, Building 12, No. 1001 North Qinzhou Road, Xuhui District, Shanghai, China
Telephone	+86(21)64956998
Fax	+86(21)54365166

1.5 Emergency phone number

Emergency phone number	+86-400-6021-666
Service hours	Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

2.Hazard identification

2.1 Classification of the substance or mixture

no data available

2.2 GHS label elements, including precautionary statements

Pictogram(s)	no data available
Signal word	no data available
Hazard statement(s)	no data available
Precautionary statement(s)
Prevention	no data available
Response	no data available
Storage	no data available
Disposal	no data available

2.3 Other hazards which do not result in classification

no data available

3.Composition/information on ingredients

3.1 Substances

Chemical name	Common names and synonyms	CAS number	EC number	Concentration
hydrogen fluoride	hydrogen fluoride	7664-39-3	none	100%

4.First-aid measures

4.1 Description of necessary first-aid measures

General advice

Consult a physician. Show this safety data sheet to the doctor in attendance.

If inhaled

Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer immediately for medical attention.

In case of skin contact

Wear protective gloves when administering first aid. Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer immediately for medical attention.

In case of eye contact

Rinse with plenty of water (remove contact lenses if easily possible). Refer immediately for medical attention.

If swallowed

Rinse mouth. Give nothing to drink. Do NOT induce vomiting. Refer immediately for medical attention.

4.2 Most important symptoms/effects, acute and delayed

Ingestion of an estimated 1.5 grams produced sudden death without gross pathological damage. Repeated ingestion of small amounts resulted in moderately advanced hardening of the bones. Contact of skin with anhydrous liquid produces severe burns. Inhalation of anhydrous hydrogen fluoride or hydrogen fluoride mist or vapors can cause severe respiratory tract irritation that may be fatal. (EPA, 1998)

4.3 Indication of immediate medical attention and special treatment needed, if necessary

Basic treatment: Establish a patent airway (oropharyngeal or nasopharyngeal airway, if needed). Suction if necessary. Watch for signs of respiratory insufficiency and assist ventilations if necessary. Administer oxygen by nonrebreather mask at 10 to 15 L/min. Monitor for pulmonary edema and treat if necessary ... . Monitor for shock and treat if necessary ... . For eye contamination, flush eyes immediately with water. Irrigate each eye continuously with 0.9% saline (NS) during transport ... . Do not use emetics. For ingestion, rinse mouth and administer 5 ml/kg up to 200 ml of water if the patient can swallow, has a strong gag reflex, and does not drool. Do not attempt to neutralize because of exothermic reaction. Cover skin burns with dry, sterile dressings after decontamination ... . /Hydrofluoric Acid (HF) and Related Compounds/

5.Fire-fighting measures

5.1 Extinguishing media

Suitable extinguishing media

If material involved in fire: Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.) Use water in flooding quantities as fog. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible. /Hydrofluoric acid solution/

5.2 Specific hazards arising from the chemical

When heated, it emits highly corrosive fumes of fluorides. Its corrosive action on metals can result in formation of hydrogen in containers and piping to create fire hazard. Toxic and irritating vapors are generated when heated. Will attack glass, concrete, and certain metals, especially those containing silica, such as cast iron. Will attack natural rubber, leather, and many organic materials. May generate flammable hydrogen gas in contact with some metals. (EPA, 1998)

5.3 Special protective actions for fire-fighters

Wear self-contained breathing apparatus for firefighting if necessary.

6.Accidental release measures

6.1 Personal precautions, protective equipment and emergency procedures

Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. For personal protection see section 8.

6.2 Environmental precautions

Evacuate danger area! Consult an expert! Personal protection: gas-tight chemical protection suit including self-contained breathing apparatus. Do NOT let this chemical enter the environment. Ventilation. Remove vapour with fine water spray.

6.3 Methods and materials for containment and cleaning up

1. VENTILATE AREA OF SPILL OR LEAK TO DISPERSE GAS. 2. IF IN GASEOUS FORM, STOP FLOW OF GAS. IF SOURCE OF LEAK IS CYLINDER & LEAK CANNOT BE STOPPED ... REMOVE ... TO SAFE PLACE IN OPEN AIR, & REPAIR LEAK OR ALLOW CYLINDER TO EMPTY. 3. IF IN LIQ FORM, ALLOW TO VAPORIZE & DISPERSE THE GAS.

7.Handling and storage

7.1 Precautions for safe handling

Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Avoid exposure - obtain special instructions before use.Provide appropriate exhaust ventilation at places where dust is formed. For precautions see section 2.2.

7.2 Conditions for safe storage, including any incompatibilities

Cool. Fireproof if in building. Keep in a well-ventilated room. Separated from food and feedstuffs and incompatible materials. Store in an area without drain or sewer access. See Chemical Dangers.Hydrogen fluoride must be stored to avoid contact with metals, concrete, glass, and ceramics, because it can severely corrode these materials. Contact with metals may form a flammable gas. Keep away from heat. Where possible automatically pump liquid from drums or other storage containers to process containers.

8.Exposure controls/personal protection

8.1 Control parameters

Occupational Exposure limit values

Recommended Exposure Limit: 10 Hr Time-Weighted Avg: 3 ppm (2.5 mg/cu m).

Recommended Exposure Limit: 15-Min Ceiling Value: 6 ppm (5 mg/cu m).

Biological limit values

no data available

8.2 Appropriate engineering controls

Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday.

8.3 Individual protection measures, such as personal protective equipment (PPE)

Eye/face protection

Safety glasses with side-shields conforming to EN166. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).

Skin protection

Wear impervious clothing. The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique(without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it.

Respiratory protection

Wear dust mask when handling large quantities.

Thermal hazards

no data available

9.Physical and chemical properties

Physical state	colourless gas with a pungent odour
Colour	Colorless gas, fumes in air
Odour	... Strong, irritating odor ...
Melting point/ freezing point	-35ºC
Boiling point or initial boiling point and boiling range	105ºC
Flammability	Not combustible. Many reactions may cause fire or explosion.
Lower and upper explosion limit / flammability limit	no data available
Flash point	-37.8ºC
Auto-ignition temperature	Not flammable (USCG, 1999)
Decomposition temperature	no data available
pH	no data available
Kinematic viscosity	no data available
Solubility	In water:soluble
Partition coefficient n-octanol/water (log value)	no data available
Vapour pressure	25 mm Hg ( 20 °C)
Density and/or relative density	1.15g/mLat 25°C(lit.)
Relative vapour density	1.27 (vs air)
Particle characteristics	no data available

10.Stability and reactivity

10.1 Reactivity

no data available

10.2 Chemical stability

Stable under recommended storage conditions.

10.3 Possibility of hazardous reactions

... NON-FLAMMABLE ...Hydrogen fluoride/hydrofluoric acid vapors may collect and stay in poorly-ventilated, low-lying, or confined areas (e.g., sewers, basements, and tanks).Hazardous concentrations may develop quickly in enclosed, poorly-ventilated, or low-lying areas. Keep out of these areas. Stay upwind.HYDROGEN FLUORIDE, ANHYDROUS attacks glass and any other silica containing material. May react with common metals (iron, steel) to generate flammable hydrogen gas if diluted below 65% with water. Reacts exothermically with chemical bases (examples: amines, amides, inorganic hydroxides). Can initiate polymerization in certain alkenes. Reacts with cyanide salts and compounds to release gaseous hydrogen cyanide. May generate flammable and/or toxic gases with dithiocarbamates, isocyanates, mercaptans, nitrides, nitriles, sulfides. Additional gas-generating reactions may occur with sulfites, nitrites, thiosulfates (to give H2S and SO3), dithionites (SO2), and carbonates. Can catalyze (increase the rate of) chemical reactions. Reacts explosively with cyanogen fluoride, methanesulfonic acid or glycerol mixed with nitric acid. Reacts violently with arsenic trioxide, phosphorus pentachloride, acetic anhydride, alkali metals, ammonium hydroxide, chlorosulfonic acid, ethylenediamine, fluorine, potassium permanganate, oleum, propylene oxide, vinyl acetate, mercury(II) oxide. Emits highly corrosive fumes of hydrogen fluoride gas when heated [Sax, 9th ed., 1996, p. 1839]. Contact with many silicon compounds and metal silicides causes violent evolution of gaseous silicon tetrafluoride [Mellor, 1956, Vol. 2, suppl. 1, p. 121].

10.4 Conditions to avoid

no data available

10.5 Incompatible materials

A super strong acid, aqueous solutions are less strong. Violent reaction with bases. Reacts, possibly with violence, with many compounds including acetic anhydride, aliphatic amines, alcohol, alkanolamines, alkylene oxides, aromatic amines, amides, 2-aminoethanol, ammonia, ammonium hydroxide, arsenic trioxide, bismuthic acid, calcium oxide, ethylene diamine, ethyleneimine, epichlorohydrin, isocyanates, metal acetyllides, nitrogen trifluoride, oleum, organic anhydrides, oxygen difluoride, phosphorus pentoxide, sulfuric acid, strong oxidizers, vinyl acetate, vinylidene fluoride. Attacks some plastics, rubber, and coatings.

10.6 Hazardous decomposition products

When heated to decomp it emits highly corrosive fumes of ... /hydrogen fluoride/.

11.Toxicological information

Acute toxicity

Oral: no data available
Inhalation: LC50 Rat inhalation 1278 ppm/1 hr
Dermal: no data available

Skin corrosion/irritation

no data available

Serious eye damage/irritation

no data available

Respiratory or skin sensitization

no data available

Germ cell mutagenicity

no data available

Carcinogenicity

no data available

Reproductive toxicity

Fluoride has been observed to cross the placenta in humans. Dental fluorosis can occur in a child's teeth when the mother receives high levels of fluoride during pregnancy. In some animal studies, oral exposure to fluoride has caused impaired reproduction and malformation of fetal bones and teeth. Inhalation of hydrogen fluoride resulted in degenerative testicular changes in male dogs. Menstrual irregularities have been observed in women occupationally exposed to fluoride; no differences were found in the numbers of pregnancies, miscarriages, or births.

STOT-single exposure

no data available

STOT-repeated exposure

no data available

Aspiration hazard

no data available

12.Ecological information

12.1 Toxicity

Toxicity to fish: no data available
Toxicity to daphnia and other aquatic invertebrates: no data available
Toxicity to algae: no data available
Toxicity to microorganisms: no data available

12.2 Persistence and degradability

no data available

12.3 Bioaccumulative potential

no data available

12.4 Mobility in soil

no data available

12.5 Other adverse effects

no data available

13.Disposal considerations

13.1 Disposal methods

Product

The material can be disposed of by removal to a licensed chemical destruction plant or by controlled incineration with flue gas scrubbing. Do not contaminate water, foodstuffs, feed or seed by storage or disposal. Do not discharge to sewer systems.

Contaminated packaging

Containers can be triply rinsed (or equivalent) and offered for recycling or reconditioning. Alternatively, the packaging can be punctured to make it unusable for other purposes and then be disposed of in a sanitary landfill. Controlled incineration with flue gas scrubbing is possible for combustible packaging materials.

14.Transport information

14.1 UN Number

ADR/RID: UN1790

IMDG: UN1790

IATA: UN1790

14.2 UN Proper Shipping Name

ADR/RID: HYDROFLUORIC ACID, with more than 60% hydrogen fluoride

IMDG: HYDROFLUORIC ACID, with more than 60% hydrogen fluoride

IATA: HYDROFLUORIC ACID, with more than 60% hydrogen fluoride

14.3 Transport hazard class(es)

ADR/RID: 8

IMDG: 8

IATA: 8

14.4 Packing group, if applicable

ADR/RID: II

IMDG: II

IATA: II

14.5 Environmental hazards

ADR/RID: no

IMDG: no

IATA: no

14.6 Special precautions for user

no data available

14.7 Transport in bulk according to Annex II of MARPOL 73/78 and the IBC Code

no data available

15.Regulatory information

15.1 Safety, health and environmental regulations specific for the product in question

Chemical name	Common names and synonyms	CAS number	EC number
hydrogen fluoride	hydrogen fluoride	7664-39-3	none
European Inventory of Existing Commercial Chemical Substances (EINECS)			Listed.
EC Inventory			Listed.
United States Toxic Substances Control Act (TSCA) Inventory			Listed.
China Catalog of Hazardous chemicals 2015			Listed.
New Zealand Inventory of Chemicals (NZIoC)			Listed.
Philippines Inventory of Chemicals and Chemical Substances (PICCS)			Listed.
Vietnam National Chemical Inventory			Listed.
Chinese Chemical Inventory of Existing Chemical Substances (China IECSC)			Listed.

16.Other information

Information on revision

Creation Date	Aug 16, 2017
Revision Date	Aug 16, 2017

Abbreviations and acronyms

CAS: Chemical Abstracts Service
ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
RID: Regulation concerning the International Carriage of Dangerous Goods by Rail
IMDG: International Maritime Dangerous Goods
IATA: International Air Transportation Association
TWA: Time Weighted Average
STEL: Short term exposure limit
LC50: Lethal Concentration 50%
LD50: Lethal Dose 50%
EC50: Effective Concentration 50%

References

IPCS - The International Chemical Safety Cards (ICSC), website: http://www.ilo.org/dyn/icsc/showcard.home
HSDB - Hazardous Substances Data Bank, website: https://toxnet.nlm.nih.gov/newtoxnet/hsdb.htm
IARC - International Agency for Research on Cancer, website: http://www.iarc.fr/
eChemPortal - The Global Portal to Information on Chemical Substances by OECD, website: http://www.echemportal.org/echemportal/index?pageID=0&request_locale=en
CAMEO Chemicals, website: http://cameochemicals.noaa.gov/search/simple
ChemIDplus, website: http://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp
ERG - Emergency Response Guidebook by U.S. Department of Transportation, website: http://www.phmsa.dot.gov/hazmat/library/erg
Germany GESTIS-database on hazard substance, website: http://www.dguv.de/ifa/gestis/gestis-stoffdatenbank/index-2.jsp
ECHA - European Chemicals Agency, website: https://echa.europa.eu/

Disclaimer: The above information is believed to be correct but does not purport to be all inclusive and shall be used only as a guide. The information in this document is based on the present state of our knowledge and is applicable to the product with regard to appropriate safety precautions. It does not represent any guarantee of the properties of the product. We as supplier shall not be held liable for any damage resulting from handling or from contact with the above product.

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