VINYL CHLORIDE MONOMER

PRODUCT IDENTIFICATION
CAS NO.

75-01-4

VINYL CHLORIDE
EINECS NO. 200-831-0
FORMULA H2C=CHCl
MOL WT. 62.50

H.S. CODE

  
TOXICITY  
SYNONYMS Chloroethylene; Chlorure de vinyle; Cloruro di vinile;
Chlorethene; Chlorethylene; Chloroethene; Ethylene monochloride; Monochloroethene; Monochloroethylene; Monovinyl chloride; VC; VCM; Vinile (cloruro di); Vinyl C monomer; Vinyl chloride; Vinyl chlorine; Vinylchlorid; Vinylchloride; Vinyle(chlorure de); Winylu chlorek;
DERIVATION

 

CLASSIFICATION

 

PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE Colorless gas (compressed liquefied gas)

MELTING POINT

< -154 C

BOILING POINT -14 C
SPECIFIC GRAVITY 0.964
SOLUBILITY IN WATER none
pH  
VAPOR DENSITY 1.9

AUTOIGNITION

473 C

NFPA RATINGS

 Health: 2; Flammability: 4; Reactivity: 0

REFRACTIVE INDEX

  
FLASH POINT -78 C
STABILITY Flammable gas

GENERAL DESCRIPTION & APPLICATIONS

Most commercial production of VINYL CHLORIDE MONOMER (VCM) is based on cracking of ethylene dichloride obtained from chlorination of ethylene. Hydrogen chloride produced in the cracking process is used in an oxychlorination reaction to produce more EDC. PVC makers have been largely unsuccessful in repeated attempts to raise prices over the past year, providing little chance for an increase in VINYL CHLORIDE MONOMER (VCM) .
SALES SPECIFICATION

Purity

wt%

99.9 MIN

Water

wt ppm

100 MAX

Acidity(Hcl)

wt ppm

1.0 MAX

Iron

wt ppm

0.5 MAX

Non-volatile Residue

wt ppm

50 MAX

Appeaerance

-

CLEAR

Acetylene

wt ppm

1.0 MAX

Other Chloride

wt ppm

75 MAX

1.3-butadiene

wt ppm

10 MAX

Acetaldehyde

wt ppm

1.0 MAX

Inhibitor

wt ppm

0~5

PRECAUTION IN HANDLING

Physical Dangers: The gas is heavier than air, and may travel along the ground; distant ignition possible. Chemical Dangers:The substance can under specific circumstances form peroxides, initiating explosive polymerization. The substance will polymerize readily due to heating and under the influence of air, light, and on contact with a catalyst, strong oxidizing agents and metals such as copper and aluminium, with fire or explosion hazard. The substance decomposes on burning producing toxic and corrosive fumes (hydrogen chloride and phosgene).
Occupational Exposure Limits (OELs):TLV: 5 ppm; 13 mg/m3 (ACGIH 1993-1994). Routes Of Exposure: The substance can be absorbed into the body by inhalation.
Inhalation Risk:A harmful concentration of this gas in the air will be reached very quickly on loss of containment.Effects Of Short-term Exposure:The substance irritates the eyes. The liquid may cause frostbite. The substance may cause effects on the central nervous system. Exposure could cause lowering of consciousness. Medical observation is indicated. Effects Of Long-term Or Repeated Exposure: The substance may have effects on the liver, blood vessels and connective tissue. This substance is carcinogenic to humans. May cause heritable genetic damage in humans.

TRANSPORTATION
PACKING bulk
HAZARD CLASS UN Hazard Class: 2.1
UN NO.

 
OTHER INFORMATION
Hazard Symbols: F+,T, Risk Phrases: 45-12, Safety Phrases: 53-45