CYCLOHEXANE

PRODUCT IDENTIFICATION

CAS NO.

110-82-7

CYCLOHEXANE

EINECS NO. 203-806-2
FORMULA C6H12
MOL WT. 84.16

H.S. CODE

 
TOXICITY Oral rat LD50: 12705 mg/kg
SYNONYMS Benzenehexahydride; Cyclohexane; Hexahydro-Benzene;
Ciclohexano; Cyclohexane; Hexamethylene; Hexanaphthene; Cicloesano; Cykloheksan;
DERIVATION

 

CLASSIFICATION

 

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE

clear liquid

MELTING POINT

6.5 C

BOILING POINT 81 C
SPECIFIC GRAVITY 0.802 - 0.804
SOLUBILITY IN WATER Practically insoluble in water < 0.1 (g/100ml at 17 C)
pH  
VAPOR DENSITY 3.0

AUTOIGNITION

245 C

NFPA RATINGS

Health: 1; Flammability: 3; Reactivity: 0

REFRACTIVE INDEX

 
FLASH POINT - 18 C
STABILITY Stable under ordinary conditions

GENERAL DESCRIPTION & APPLICATIONS

Cyclohexane is the six-membered alicyclic hydrocarbon consisting of six carbon atoms linked to each other to form a ring, with each carbon atom bearing two hydrogen atoms, C6H12. A cyclic compound is an organic compound that contains one or more closed rings of carbon atoms. The term alicyclic refers to cyclic compound that behaves chemically like aliphatic compounds (open-chain), which means the exclusion of carbocyclic compounds of aromatic rings with an array of -electrons characteristic. Cyclohexane is a colorless, highly flammable, mobile liquid with a pungent odor. It is insoluble in water and soluble in alcohol, ether, and almost organic solvents. Cyclohexane is a non-corrosive and quick volatilize liquid and sublimes between -5 to 5 C. Cyclohexane can exist in a number of  interconvertible three-dimensional conformations, the two simplest being are the chair and boat conformation and others include the half-chair and twist-chair conformation. Cyclohexane can cause irritation to the eyes and mucous membranes in workers. Repeated and prolonged contact with skin may cause dermatitis. The substance has not been shown to cause the hematologic changes associated with exposure to benzene. Cyclohexane occurs naturally in crude oils. Some cyclohexane is recovered from petroleum streams by fractionation. The bulky commercial  production of cyclohexane is based on hydrogenation of benzene in closed system. Cyclohexane consumption is linked almost entirely to nylon production. Nylon is further processed into fibers for applications in carpeting, automobile tire cord, clothing, and other growing industrial fields. Cyclohexane is used as a solvent, oil extractant, paint and varnish remover, dry cleaning material, and in solid fuels. It has been used as a insecticide itself. Cyclohexane is used as a chemical intermediate to produce target molecules. Natural compounds of one to five alicyclic rings with great variety and complexity are found particularly in steroids and terpenes. Cyclohexane structure, six membered-ring, is one of the major skeleton in nature. Cyclohexane derivatives can be used for the synthesis of pharmaceuticals, dyes, herbicides, plant growth regulator, plasticizers, rubber chemicals, cycloamines and other organic compounds.

SALES SPECIFICATION

APPEARANCE

clear liquid

PURITY

99.8% min

COLOR

10 max, APHA

BENZENE

0.1% max

SPECIFIC GRAVITY 0.802 - 0.804
SULFUR

5ppm max

DISTILLATION POINT

80.0 C min (IBP), 82.0 C max (Dry Point)

HIGHER CARBON

0.1% max

NON-VOLATILES

1.0 max mg/100ml

COPPER CORROSION

pass

TRANSPORTATION

PACKING 160kgs in drum, in bulk
HAZARD CLASS 3 (Packing Group: III)
UN NO.

1145

OTHER INFORMATION
Hazard Symbols: XN F N, Risk Phrases: 11-38-50/53-65-67, Safety Phrases: 9-16-33-60-61-62