ISOBUTYLENE manufacturers and suppliers in india

Isobutylene

Properties

Melting point:: −140 °C

Boiling point:: −6.9 °C(lit.)

Density: 0.5879

vapor density: 2 (vs air)

vapor pressure: 3278 mm Hg ( 37.7 °C)

refractive index: 1.3811

Flash point:: -80 °C

form: clear liquid

color: Colorless to Almost colorless

Odor Threshold: 10ppm

Water Solubility: 263mg/L(25 ºC)

FreezingPoint: -140.34℃

Merck: 14,5141

BRN: 773645

Henry's Law Constant: 0.20, 0.26, 0.33, and 0.41 at 30, 40, 50, and 60 °C, respectively (Leung et al., 1987:Zhang et al., 2002)

Stability:: Stable. Highly flammable - readily forms an explosive mixture with air. Incompatible with strong oxidizing agents.

InChIKey: VQTUBCCKSQIDNK-UHFFFAOYSA-N

LogP: 2.35 at 20℃

Safety Information

Symbol(GHS): GHS02,GHS04

Signal word: Danger

Hazard statements: H220-H280

Precautionary statements: P210-P410+P403

Hazard Codes: F+

Risk Statements: 12

Safety Statements: 9-16-33

RIDADR: UN 1055 2.1

WGK Germany: -

RTECS: UD0890000

F: 4.5-31

Autoignition Temperature: 869 °F

DOT Classification: 2.1 (Flammable gas)

HazardClass: 2.1

PackingGroup: III

HS Code: 29012330

Toxicity: LC₅₀ (inhalation) for mice 415 g/m³/2-h, rats 620 g/m³/4-h (quoted, RTECS, 1985).

Use

Isobutylene is used as a monomer for the production of various polymers such as butyl rubber, polybutene and polyisobutylene. The most important application of butyl rubber is the manufacture of tyres for cars and other vehicles. Other applications of butyl rubber, polybutene and poyisobutylene are lubricants (motor oils), adhesives, sealants and coatings. Another major use of isobutylene is the production of methyl-tert-butyl ether (MTBE) and ethy-tert-butyl ether (ETBE) which are gasoline blending components for cleaner burning fuels. Isobutylene is also used for the production of anti-oxidants, fragrances and gas odorization products.