7756-94-7

Basic information

• Product Name: TRIISOBUTYLENE
• Synonyms: ISOBUTYLENE TRIMER;ISOBUTENE TRIMER;2-METHYLPROPENE TRIMER;TRIISOBUTYLENE;1-Propene, 2-methyl-, trimer;1-Propene,2-methyl-,trimer;2,5-dimethyl-3-(2-methylpropyl)-2-hexene;2-methyl-1-propentrimer
• CAS NO: 7756-94-7
• Molecular Weight: 168.32
• EINECS: 500-001-0
• Product Categories: Alpha Sort;Chemical Class;Hydrocarbons;NeatsGasoline, Diesel,&Petroleum;OlefinsVolatiles/ Semivolatiles;Substance classes;TP - TZ;T-ZAlphabetic
• Mol File: 7756-94-7.mol
• Article Data: 1

Chemical Properties

• Melting Point: 141℃
• Boiling Point: 177°C
• Flash Point: 50°C
• Appearance: /
• Density: 0,77 g/cm3
• Vapor Pressure: 19.7hPa at 20℃
• Refractive Index: 1.4350 (589.3 nm 20℃)
• Solubility: Insoluble in water
• Water Solubility: 4.7mg/L at 20℃
• CAS DataBase Reference: TRIISOBUTYLENE(CAS DataBase Reference)
• NIST Chemistry Reference: TRIISOBUTYLENE(7756-94-7)
• EPA Substance Registry System: TRIISOBUTYLENE(7756-94-7)

Safety Data

• Statements: 10
• Safety Statements: 16
• RIDADR: 2324
• HazardClass: 3.2
• PackingGroup: III
• Hazardous Substances Data: 7756-94-7(Hazardous Substances Data)

Usage

Description

TRIISOBUTYLENE is a colorless liquid that is insoluble in water and less dense than water. It has a flash point near 100°F and its vapors are heavier than air.

Uses

Used in Rubber Industry:
TRIISOBUTYLENE is used as a monomer in the production of butyl rubber, which is a type of synthetic rubber known for its excellent resistance to heat, aging, and oxidation. It is commonly used in the manufacturing of tires, seals, and gaskets.
Used in Oil Industry:
TRIISOBUTYLENE is used as an additive in the production of lubricating oils. It helps to improve the viscosity, thermal stability, and oxidation resistance of the oils, making them suitable for various industrial applications.
Used in Motor Fuel Industry:
TRIISOBUTYLENE is used as a component in the formulation of motor fuels. It contributes to the improvement of fuel performance, including increased octane rating, reduced emissions, and enhanced combustion efficiency.

Air & Water Reactions

Highly flammable. Insoluble in water.

Reactivity Profile

TRIISOBUTYLENE may react vigorously with strong oxidizing agents. May react exothermically with reducing agents to release hydrogen gas. In the presence of various catalysts (such as acids) or initiators, may undergo exothermic addition polymerization reactions.

Health Hazard

May be harmful by inhalation, ingestion or absorption. May cause eye and skin irritation.

Fire Hazard

Special Hazards of Combustion Products: Emits toxic fumes upon decomposition.

InChI:InChI=1/C4H9/c1-4(2)3/h1-3H3

Upstream product

• 115-11-7 isobutene 

Relevant articles and documents

Diisobutylene process

This invention is a process for producing diisobutylene from isobutylene. The process comprises first oligomerizing isobutylene to diisobutylene using a sulfonic acid-type ion exchange resin. The oligomerization step is followed by contacting the diisobutylene product with an adsorbent to remove sulfur impurities produced during the oligomerization step. The adsorbent is a large pore zeolite such as zeolite X and zeolite Y. Optionally, the purified diisobutylene may be hydrogenated to isooctane using a hydrogenation catalyst.