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Titanium Dioxide Acetic Acid Citric Acid Sodium Hydroxide Oxalic Acid Ethyl Acetate
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POLYISOPRENE

CAS No.: 9003-31-0
Formula: C5H8
Molecular Weight: 68.12
Suppliers: All(0) China Suppliers(0) Products(1)
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What is POLYISOPRENE

5,5-Dimethyl-2-octyl-1,3-dioxane is a specialized organic compound widely recognized for its unique chemical structure and versatile applications. This compound features a dioxane ring substituted with a dimethyl group at the 5-position and an octyl group at the 2-position, making it a valuable intermediate in organic synthesis and industrial processes. Its hydrophobic properties and stability under various conditions make it particularly useful in the formulation of fragrances, cosmetics, and specialty chemicals. Additionally, 5,5-Dimethyl-2-octyl-1,3-dioxane is employed in the development of advanced materials, including polymers and surfactants, where its structural characteristics contribute to enhanced performance and functionality. This compound exemplifies innovation in chemical design and application.

Preparation Process: To prepare **5,5-Dimethyl-2-octyl-1,3-dioxane**, follow these steps: 1. **React 2,2-dimethyl-1,3-propanediol (neopentyl glycol) with octanal** in the presence of an acid catalyst (e.g., p-toluenesulfonic acid or sulfuric acid) under reflux conditions. 2. Use a Dean-Stark apparatus to remove water formed during the acetalization reaction, driving the equilibrium toward product formation. 3. Dissolve the reactants in a nonpolar solvent (e.g., toluene or benzene) to facilitate azeotropic water removal. 4. After completion, neutralize the acid, wash the mixture with water, and dry over anhydrous sodium sulfate. 5. Purify the product via vacuum distillation or column chromatography. Yield and purity depend on reaction conditions and stoichiometry.

Usage Scenarios: 5,5-Dimethyl-2-octyl-1,3-dioxane is primarily used as a fragrance ingredient in perfumes, cosmetics, and personal care products due to its long-lasting, woody, and slightly floral aroma. It acts as a fixative, enhancing the stability and longevity of scent compositions. Additionally, it serves as a solvent or carrier in formulations requiring controlled release of active ingredients. In industrial applications, it may function as a plasticizer or intermediate in chemical synthesis. Its hydrophobic properties make it suitable for water-resistant coatings and lubricants. The compound's stability under various conditions also allows its use in specialty chemical formulations requiring durability and resistance to degradation.

POLYISOPRENE Basic Info
Chemical Name POLYISOPRENE
Synonyms IR;Natural rubber;NATSYN 2210;cis-1,4-Polyisoprene rubber;Isoprene rubber;POLYISOPRENE, CIS;Trans-polyisoprene;1,3-Butadiene, 2-methyl-, homopolymer;isoprened;Kraton[R]
CAS No. 9003-31-0
Molecular Formula C5H8
Molecular Weight 68.12
PSA 18.46000
LogP 4.13610
Safely Info
RTECS VL8020000
Hazard Class -
Safety Statements 24/25-7/9-45-36/37-16-53
HS Code -
WGK Germany 3
Packing Group -
RIDADR UN 1307 3/PG 3
Risk Statements 60-61-10-20/21-38
Hazard Codes T
Caution Statement P210-P273-P280-P301+P310-P303+P361+P353-P331
Hazard Declaration H226-H304-H312+H332-H315-H335-H360FD-H412
Symbol GHS02,GHS07,GHS08
Signal Word Danger
POLYISOPRENE Price
United States: $100-200
China: $50-100
Russia: $80-150
Germany: $120-180
India: No results
Japan: $150-250
Brazil: $80-120
South Korea: $100-200
Philippines: No results
United Kingdom: $150-200
France: $120-180
Mexico: $80-120
Canada: $120-200
South Africa: $100-150
Egypt: $70-120
Turkey: $90-150
Thailand: $80-130
Indonesia: $70-120
MSDS
MSDS
Name: Poly(Isoprene) Trans Material Safety Data Sheet
Synonym: 1,3-Butadiene, 2-Methyl-, Homopolymer; Polyisoprene; Trans-Polyisoprene
CAS: 9003-31-0
Section 1 - Chemical Product   MSDS Name:Poly(Isoprene) Trans Material Safety Data Sheet
Synonym:1,3-Butadiene, 2-Methyl-, Homopolymer; Polyisoprene; Trans-Polyisoprene

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
9003-31-0 Poly(Isoprene), Trans. ca. 100% unlisted
Hazard Symbols: None Listed.
Risk Phrases: None Listed.

Section 3 - HAZARDS IDENTIFICATION
  EMERGENCY OVERVIEW
Not available.
Potential Health Effects
Eye:
Non-irritating to the eyes.
Skin:
Non-irritating to the skin.
Ingestion:
Low hazard for usual industrial handling.
Inhalation:
Low hazard for usual industrial handling.
Chronic:
Not available.

Section 4 - FIRST AID MEASURES
  Eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. If irritation develops, 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:
Wash mouth out with water. Get medical aid if irritation or symptoms occur.
Inhalation:
Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. 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. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Runoff from fire control or dilution water may cause pollution.
Extinguishing Media:
Use agent most appropriate to extinguish fire. Use water spray, dry chemical, carbon dioxide, or alcohol-resistant foam.

Section 6 - ACCIDENTAL RELEASE MEASURES
  General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, observing precautions in the Protective Equipment section. Avoid generating dusty conditions.
Provide ventilation.

Section 7 - HANDLING and STORAGE
  Handling:
Wash thoroughly after handling. Wash hands before eating. Remove contaminated clothing and wash before reuse. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation. Use with adequate ventilation.
Storage:
Store in a cool, dry place. Keep container closed when not in use.

Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
  Engineering Controls:
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 9003-31-0: 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 minimize contact with skin.
Respirators:
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant respirator use.

Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
 
Physical State: Pellets
Color: white
Odor: Not available.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: Not available.
Autoignition Temperature: Not applicable.
Flash Point: Not applicable.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water:
Specific Gravity/Density: .9040g/cm3
Molecular Formula:
Molecular Weight:

Section 10 - STABILITY AND REACTIVITY
  Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Incompatible materials, dust generation, excess heat, strong oxidants.
Incompatibilities with Other Materials:
Strong oxidizing agents.
Hazardous Decomposition Products:
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.
Hazardous Polymerization: Has not been reported

Section 11 - TOXICOLOGICAL INFORMATION
  RTECS#:
CAS# 9003-31-0 unlisted.
LD50/LC50:
Not available.
Carcinogenicity:
Poly(Isoprene), Trans. - Not listed by ACGIH, IARC, or NTP.

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
Not regulated as a hazardous material.
IMO
Not regulated as a hazardous material.
RID/ADR
Not regulated as a hazardous material.

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# 9003-31-0: No information available.
Canada
CAS# 9003-31-0 is listed on Canada's DSL List.
CAS# 9003-31-0 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 9003-31-0 is listed on the TSCA inventory.


SECTION 16 - ADDITIONAL INFORMATION
N/A
SDS 1.0
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