1,2-DIMETHYL CYCLOHEXENE Property

Melting point:

-84.15°C

Boiling point:

135.75°C

Density 

0.8220

refractive index 

1.4594

EPA Substance Registry System

Cyclohexene, 1,2-dimethyl- (1674-10-8)

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H225Highly Flammable liquid and vapour

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

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.

P242Use only non-sparking tools.

P243Take precautionary measures against static discharge.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

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

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P302+P352IF ON SKIN: wash with plenty of soap and water.

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

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P321Specific treatment (see … on this label).

P330Rinse mouth.

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P362Take off contaminated clothing and wash before reuse.

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

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

P501Dispose of contents/container to..…

1,2-DIMETHYL CYCLOHEXENE Chemical Properties,Usage,Production

Synthesis Reference(s)

Journal of the American Chemical Society, 63, p. 3350, 1941 DOI: 10.1021/ja01857a033

Purification Methods

Pass it through a column of basic alumina and distil it. If removal of 2-methylmethylenecyclohexane or 2,3-dimethylcyclohexene is required, then fractionation through a centre-rod column operating at ~50 theoretical plates is required. [Hammond & Nevitt J Am Chem Soc 76 4121 1954, Beilstein 5 III 213, 5 IV 268.]