Rubber

Public-database records for Rubber (CAS 9006-04-6), reproduced here for independent cross-checking.

Safety classification and hazard statements

Regulatory listings

Physical description and handling notes

• Isoprene, stabilized appears as a clear colorless liquid with a petroleum-like odor. 密度 5.7 lb / gal. Flash point -65 °F. Boiling point 93 °F. May polymerize exothermically if heated or contaminated. If polymerization takes place inside a closed container, the container may rupture violently. Less dense than water and insoluble in water. Vapors heavier than air.
• Liquid; Other Solid
• Colorless liquid with a mild, aromatic odor; [HSDB]
• VERY VOLATILE COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR.
• Colorless volatile liquid
• Colorless, watery liquid

Reported physical properties

How this substance is indexed

Documented uses

• Used as a monomer to manufacture polyisoprene and butyl rubber; [HSDB]
• Almost all isoprene produced is used for the preparation of polymers or copolymers. cis-Polyisoprene is the largest application with SIS block polymers a secondary application, and butyl rubber is a significant third application.
• Smaller amounts are used as an intermediate into specialty chemicals, including vitamins, pharmaceuticals, flavorings, and perfumes, and epoxy hardeners.
• Most of the isoprene that is produced is utilized for the synthesis of poly(cis-1,4-isoprene) (isoprene rubber, IR), a material (particularly the titanium type) that closely resembles natural rubber in both structure and properties. This IR is largely used for the production of vehicle tires. ... The second largest market for isoprene is the manufacture of styrene - isoprene - styrene (SIS) block copolymers ... These products are especially useful as thermoplastic rubbers and as pressure-sensitive or thermosetting
• Manufacture of "synthetic" natural rubber, butyl rubber. Copolymer in the production of synthetic elastomers.
• For more Uses (Complete) data for Isoprene (6 total), please visit the HSDB record page.

Names this substance appears under

ISOPRENE; 78-79-5; 2-Methyl-1,3-butadiene; 2-Methylbuta-1,3-diene; Isopentadiene; 2-Methylbutadiene; 2-Methyldivinyl; 1,3-Butadiene, 2-methyl-; beta-Methylbivinyl; 3-Methyl-1,3-butadiene; DTXSID2020761; 0A62964IBU; NSC-9237; DTXCID20761; CHEBI:35194; NSC9237

Computed molecular descriptors

Database abstract

Rubber · CAS 9006-04-6 · C5H8. UNII 0A62964IBU. 沸点: 93 °F at 760 mmHg (NTP, 1992); 沸点: 34.067 °C; 沸点: 34 °C.

Source: PubChem / Wikidata; the batch COA governs where values differ.