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Silicone oil

CAS No.: 63148-62-9
Formula: C6H18OSi2
Molecular Weight: 162.38
Suppliers: All(0) China Suppliers(38) Products(49)
  • Description
  • Basic Info
  • Safety Info
  • MSDS
  • Price
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What is Silicone oil

**Introduction to Dimethylsilicone Oil** Dimethylsilicone oil, also known as polydimethylsiloxane (PDMS), is a versatile silicone-based polymer widely used in industrial, cosmetic, and medical applications. Known for its excellent thermal stability, water repellency, and low surface tension, it serves as a lubricant, antifoaming agent, and dielectric fluid. Its inert nature and biocompatibility make it suitable for skincare products, hair conditioners, and medical devices. Additionally, dimethylsilicone oil is valued for its smooth texture, non-greasy feel, and resistance to oxidation, ensuring long-lasting performance. From automotive and electronics to personal care and pharmaceuticals, this silicone oil is a key ingredient, offering durability, safety, and multifunctionality across diverse industries.

Preparation Process: Dimethylsilicone oil is prepared through the hydrolysis and condensation of dimethyldichlorosilane (Me₂SiCl₂). First, Me₂SiCl₂ is hydrolyzed with water to form a mixture of cyclic and linear siloxanes (e.g., octamethylcyclotetrasiloxane, D4). The hydrolyzate is then neutralized to remove residual HCl. Polymerization is initiated by heating the siloxane mixture with an alkaline catalyst (e.g., KOH) or an acidic catalyst (e.g., H₂SO₄) under controlled conditions. The reaction yields polydimethylsiloxane (PDMS) with varying chain lengths. The product is stabilized by neutralizing the catalyst, followed by vacuum distillation to remove volatile cyclic siloxanes and achieve the desired viscosity.

Usage Scenarios: Dimethylsilicone oil is widely used as a lubricant, antifoam agent, and heat transfer fluid due to its thermal stability, low viscosity, and water repellency. In cosmetics and personal care products, it acts as a skin-conditioning agent, providing smoothness and shine. Industrial applications include mold release agents, dielectric fluids, and damping fluids in mechanical systems. It serves as a protective coating for electrical components and optical instruments, preventing moisture damage. In pharmaceuticals, it functions as an excipient in ointments and topical formulations. Additionally, it is employed in automotive and aerospace industries for its resistance to extreme temperatures and oxidation. Its inert nature makes it suitable for food-grade applications as an antifoaming agent.

Silicone oil Basic Info
Chemical Name Silicone oil
Synonyms pdms;Silicone;Poly(dimethylsiloxane);siloxane;HMDO;SILICONE FLUID;Silicone emulsion;DIETHYL ETHER RECTIFIED;dimethylsilicone fluid;polydimethylsiloxanes
CAS No. 63148-62-9
Molecular Formula C6H18OSi2
Molecular Weight 162.38
PSA 40.46000
LogP -0.32720
Safely Info
RTECS JM9237000
Hazard Class -
Safety Statements S16; S24/25; S62; S45; S36/37; S26; S53
HS Code 39100000
WGK Germany 3
Packing Group -
RIDADR UN 1993 3
Risk Statements R11; R65; R48/23/24/25; R36/38; R46; R45
Hazard Codes F
Caution Statement P210-P273-P301+P310-P303+P361+P353-P305+P351+P338-P331
Hazard Declaration H225-H304-H315-H319-H340-H350-H372-H410
Symbol GHS02,GHS07,GHS08,GHS09
Signal Word Danger
Silicone oil Price
Here is a rough price range for Dimethylsilicone oil in the 18 countries listed. Note that prices can vary based on purity, quantity, and supplier:

1. **United States**: $10–$50 per liter
2. **China**: $5–$20 per liter
3. **Russia**: $15–$40 per liter
4. **Germany**: $12–$45 per liter
5. **India**: $8–$25 per liter
6. **Japan**: $15–$50 per liter
7. **Brazil**: $10–$35 per liter
8. **South Korea**: $12–$40 per liter
9. **Philippines**: $10–$30 per liter
10. **United Kingdom**: $12–$45 per liter
11. **France**: $12–$45 per liter
12. **Mexico**: $10–$35 per liter
13. **Canada**: $10–$50 per liter
14. **South Africa**: $10–$30 per liter
15. **Egypt**: $10–$30 per liter
16. **Turkey**: $10–$35 per liter
17. **Thailand**: $8–$25 per liter
18. **Indonesia**: $8–$25 per liter

If no specific price data is available for a country, it is marked as "No results." Prices are approximate and subject to change based on market conditions.
MSDS
MSDS
Name: Silicone oil for melting point and boiling point apparatuses Material Safety Data Sheet
Synonym: Polydimethylsiloxan
CAS: 63148-62-9
Section 1 - Chemical Product   MSDS Name:Silicone oil for melting point and boiling point apparatuses Material Safety Data Sheet
Synonym:Polydimethylsiloxan

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
63148-62-9 POLY(DIMETHYLSILOXANE) 100 unlisted
Hazard Symbols: None Listed.
Risk Phrases: None Listed.

Section 3 - HAZARDS IDENTIFICATION
  EMERGENCY OVERVIEW
Not available.
Potential Health Effects
Eye:
Causes eye irritation.
Skin:
May cause skin irritation.
Ingestion:
Ingestion of large amounts may cause gastrointestinal irritation.
Inhalation:
May cause respiratory tract irritation.
Chronic:
No information found.

Section 4 - FIRST AID MEASURES
  Eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Skin:
Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists.
Ingestion:
If victim is conscious and alert, give 2-4 cupfuls of milk or water.
Never give anything by mouth to an unconscious person. Get medical aid.
Inhalation:
Remove from exposure and move to fresh air immediately. Get medical aid if cough or other symptoms appear.
Notes to Physician:

Section 5 - FIRE FIGHTING MEASURES
  General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear.
Extinguishing Media:
For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam.

Section 6 - ACCIDENTAL RELEASE MEASURES
  General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth), then place in suitable container.

Section 7 - HANDLING and STORAGE
  Handling:
Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Keep away from heat, sparks and flame. Avoid ingestion and inhalation.
Storage:
Keep away from sources of ignition. Store in a cool, dry place.
Store in a tightly closed container.

Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
  Engineering Controls:
Use adequate ventilation to keep airborne concentrations low.
Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.

Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
 
Physical State: Liquid
Color: clear, colorless
Odor: weak odor
pH: Not available.
Vapor Pressure: < 5 mm Hg @20C
Viscosity: mPas 25 deg C
Boiling Point: > 140 deg C @ 760.00mm Hg
Freezing/Melting Point: -50 deg C
Autoignition Temperature: 450 deg C ( 842.00 deg F)
Flash Point: 250 deg C ( 482.00 deg F)
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: 250 deg C
Solubility in water: practically insoluble in water
Specific Gravity/Density: .9630g/cm3
Molecular Formula:
Molecular Weight:

Section 10 - STABILITY AND REACTIVITY
  Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
High temperatures, incompatible materials, ignition sources.
Incompatibilities with Other Materials:
Strong oxidizers.
Hazardous Decomposition Products:
Silicon dioxide.
Hazardous Polymerization: Has not been reported.

Section 11 - TOXICOLOGICAL INFORMATION
  RTECS#:
CAS# 63148-62-9: JT6484500 JT6485000 VU6200000 VW1511000 VX6390000 LD50/LC50:
CAS# 63148-62-9: Draize test, rabbit, eye: 100 uL/24H Mild; Draize test, rabbit, eye: 100 mg/1H Mild; Draize test, rabbit, eye: 100 uL/24H Moderate; Draize test, rabbit, skin: 500 uL/24H Mild; Oral, rat: LD50 = >24 gm/kg; Oral, rat: LD50 = >17 gm/kg; Skin, rabbit: LD50 = >2 gm/kg.
Carcinogenicity:
POLY(DIMETHYLSILOXANE) - Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA.
See actual entry in RTECS for complete information.

Section 12 - ECOLOGICAL INFORMATION
 

Section 13 - DISPOSAL CONSIDERATIONS
  Dispose of in a manner consistent with federal, state, and local regulations.

Section 14 - TRANSPORT INFORMATION
 
IATA
No information available.
IMO
No information available.
RID/ADR
No information available.

Section 15 - REGULATORY INFORMATION
 
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: Not available.
Risk Phrases:
Safety Phrases:
S 24/25 Avoid contact with skin and eyes.
WGK (Water Danger/Protection)
CAS# 63148-62-9: 1
United Kingdom Occupational Exposure Limits
United Kingdom Maximum Exposure Limits
Canada
None of the chemicals in this product are listed on the DSL/NDSL list.
CAS# 63148-62-9 is not listed on Canada's Ingredient Disclosure List.
Exposure Limits
US FEDERAL
TSCA
CAS# 63148-62-9 is not listed on the TSCA inventory.
It is for research and development use only.


SECTION 16 - ADDITIONAL INFORMATION
N/A
SDS 1.0
Silicone oil Suppliers
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China Shanghai Pudong New Area
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China Shanghai Qingpu
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China Shanghai Pudong New Area
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China Shanghai Qingpu
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China Guangdong Dongguan
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China Guangdong Foshan
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Other
China Jiangsu Nanjing
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China Hebei Tangshan
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China Zhejiang Jiaxing
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China Guangdong Foshan
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