Isoprene manufacturers and suppliers in india

Isoprene

Properties

Melting point:: 323-329 °C(lit.)

Boiling point:: 34 °C(lit.)

Density: 0.681 g/mL at 25 °C(lit.)

vapor density: 2.35 (vs air)

vapor pressure: 8.82 psi ( 20 °C)

refractive index: n20/D 1.422(lit.)

Flash point:: −65 °F

storage temp.: Store at <= 20°C.

solubility: 0.7g/l

form: solid

pka: >14 (Schwarzenbach et al., 1993)

color: Clear colorless to very pale yellow

Odor: petroleum-like odor

explosive limit: 1-9.7%(V)

Odor Threshold: 0.048ppm

Water Solubility: 0.07 g/100 mL

FreezingPoint: -145.96℃

λmax: 231nm(neat)(lit.)

Merck: 14,5201

BRN: 969158

Henry's Law Constant: (x 10^-2 atm?m³/mol): 3.45 at 18 °C (dynamic stripping cell-MS, Karl et al., 2003)

Dielectric constant: 2.1（25℃）

Stability:: Stability Extremely flammable. Readily forms explosive mixtures with air. Note low flash point, low boiling point, high vapour pressure. Unstable - prone to spontaneous polymerization. May contain a polymerization inhibitor. Incompatible with strong oxidizing agents.

LogP: 2.42 at 20℃

Safety Information

Symbol(GHS): GHS02,GHS08

Signal word: Danger

Hazard statements: H224-H341-H350-H412

Precautionary statements: P202-P210-P233-P273-P308+P313-P403+P233

Hazard Codes: F+,T,N

Risk Statements: 45-12-52/53-68-51/53

Safety Statements: 53-45-61-36/37-16

RIDADR: UN 1218 3/PG 1

WGK Germany: 1

RTECS: NT4037000

Autoignition Temperature: 428 °F

TSCA: Yes

HS Code: 2901 24 00

HazardClass: 3

PackingGroup: I

Toxicity: LD50 for mice: 144 mg isoprene vapors/l air (Gostinskii)

Use

The primary use of isoprene is the manufacture of polyisoprene, or ‘synthetic’ natural rubber, which is subsequently used to make tires. Other major uses of isoprene include the production of styrenic thermoplastic elastomer block copolymers (styrene–isoprene–styrene) and butyl rubber (isobutene– isoprene copolymer). Isoprene is also used to manufacture other chemicals, intermediates, and derivatives, which are subsequently used to manufacture vitamins, pharmaceuticals, flavorings and fragrances, and epoxy hardeners.