CIS-1,2-DIMETHYLCYCLOHEXANE Property

Melting point:

-49.99°C

Boiling point:

129-130 °C(lit.)

Density 

0.796 g/mL at 25 °C(lit.)

vapor pressure 

28 mm Hg ( 37.7 °C)

refractive index 

n20/D 1.436(lit.)

Flash point:

54 °F

solubility 

Soluble in acetone, alcohol, benzene, ether, ligroin (Weast, 1986); miscible with cyclohexane and cycloheptane.

pka

>14 (Schwarzenbach et al., 1993)

form 

Liquid

color 

Colorless to Almost colorless

Water Solubility 

It is soluble in water. 6.0 g(1)/106 g(2) at 25°C.

Henry's Law Constant

0.354(atm?m³/mol) at 25 °C (Hine and Mookerjee, 1975)

CAS DataBase Reference

2207-01-4(CAS DataBase Reference)

EPA Substance Registry System

Cyclohexane, 1,2-dimethyl-, (1R,2S)-rel- (2207-01-4)

Safety

Hazard Codes 

F,Xn

Risk Statements 

11-65

Safety Statements 

9-16-33-62

RIDADR 

UN 2263 3/PG 2

WGK Germany 

3

TSCA 

Yes

HS Code 

2902.19.0050

HazardClass 

3

PackingGroup 

II

Toxicity

EC50 (48-h) for Daphnia pulex 3,235 μg/L (Smith et al., 1988).

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H225Highly Flammable liquid and vapour

H304May be fatal if swallowed and enters airways

Precautionary statements

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.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P310IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P331Do NOT induce vomiting.

P370+P378In case of fire: Use … for extinction.

P403+P235Store in a well-ventilated place. Keep cool.

P405Store locked up.

P501Dispose of contents/container to..…

CIS-1,2-DIMETHYLCYCLOHEXANE Chemical Properties,Usage,Production

Chemical Properties

Clear, colorless, flammable liquid with a mild characteristic odor.

Definition

ChEBI: Cis-1,2-dimethylcyclohexane is a cycloalkane.

General Description

cis-1,2-Dimethylcyclohexane has been oxidized by O₂ in the presence of iron(II)-bispidine complexes. It has been known to form plastic crystals which can be supercooled to show a glass transition at a temperature T_g.

Source

Component of gasoline (quoted, Verschueren, 1983)

Environmental Fate

Chemical/Physical. Complete combustion in air yields carbon dioxide and water vapor. cis-1,2- Dimethylcyclohexane will not hydrolyze because it has no hydrolyzable functional group.