METHYLCYCLOPENTADIENE DIMER Property

Melting point:

-51 °C (lit.)

Boiling point:

200 °C (lit.)

Density 

0.941 g/mL at 25 °C (lit.)

vapor density 

4.6 (vs air)

vapor pressure 

~7.5 mm Hg ( 47.8 °C)

refractive index 

n20/D 1.498(lit.)

Flash point:

80 °F

storage temp. 

Flammables area

form 

Liquid

color 

Clear colorless to slightly yellow

explosive limit

~10%

Water Solubility 

Insoluble in water.

LogP

5.6 at 40℃

CAS DataBase Reference

26472-00-4(CAS DataBase Reference)

EPA Substance Registry System

4,7-Methano-1H-indene, 3a,4,7,7a-tetrahydrodimethyl- (26472-00-4)

Safety

Hazard Codes 

T,F,N

Risk Statements 

45-10-50/53-46

Safety Statements 

53-45-61

RIDADR 

UN 3295 3/PG 3

WGK Germany 

3

RTECS 

PC1075000

TSCA 

Yes

HazardClass 

3

PackingGroup 

III

HS Code 

29021990

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H226Flammable liquid and vapour

H340May cause genetic defects

H350May cause cancer

Precautionary statements

P202Do not handle until all safety precautions have been read and understood.

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P233Keep container tightly closed.

P240Ground/bond container and receiving equipment.

P241Use explosion-proof electrical/ventilating/lighting/…/equipment.

P308+P313IF exposed or concerned: Get medical advice/attention.

METHYLCYCLOPENTADIENE DIMER Chemical Properties,Usage,Production

Chemical Properties

Clear colorless to slightly yellow liquid

Uses

High-energy fuels, curing agents, plasticizers,resins, surface coatings, pharmaceuticals, dyes.

Uses

Methylcyclopentadiene dimer is used to study the competition with ethylene for binding and biological activities. Used in the synthesis of rubbers and resins intended for use in contact with food or drink.

General Description

A colorless liquid. Slightly less dense than water and insoluble in water. Hence floats on water. Flash point 140°F.

Air & Water Reactions

Flammable. Insoluble in water.

Reactivity Profile

METHYLCYCLOPENTADIENE DIMER may react vigorously with strong oxidizing agents. Can react exothermically with reducing agents to release gaseous hydrogen. May undergo autoxidation upon exposure to the air to form explosive peroxides. Explosions in ammonia synthesis gas have been traced to the breakdown of addition products of dienes similar to this diene and oxides of nitrogen produced from the interaction of nitrogen oxide and oxygen [Bretherick, 1995].

Hazard

Moderate fire risk.

Health Hazard

Harmful if swallowed, inhaled or absorbed through skin. Vapor or mist is irritating to the eyes, mucous membrane, upper respiratory tract. Exposure can cause nausea, headache, and vomiting. May contain 0.5% Benzene, a known carcinogen.

Fire Hazard

Special Hazards of Combustion Products: Vapors may travel considerable distance to a source of ignition and flash back. Forms explosive mixtures in air. Container explosion may occur under fire conditions.

Flammability and Explosibility

Flammable