- Ethylene monochloride
- Cinyl chloride monomer
A colorless gas with a sweet odor.
In plastic industry, in organic syntheses.
Registry Numbers and Inventories.
EC Index Number
Extremely flammable; Carcinogenic Category 1
Agricultural Chemical and Pesticide; Tumorigen; Mutagen; Reproductive Effector; Human Data
Swiss Giftliste 1
Japan ENCS (MITI)
Melting point, °C
Boiling point, °C
Vapor pressure, mmHg
3878 (25 C)
Vapor density (air=1)
Odor Threshold Odor threshold 250 ppm
0.93812 g/cm3 (8 C)
Solubility in water
8.8 g/L (26 C)
0.34 cp (-30 C)
23.87 g/s2 (-20 C)
1.445 (20 C)
0.00175/K (-15 C)
Heat of fusion
Heat of vaporization
Heat of combustion
Hazards and Protection.
Protect against physical damage. Outside or detached storage is preferable. Inside storage should be in a fire resistive storage room, provided with aduate ventilation and free of sources of ignition and heat.
A B1 D2A D2B F
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Wear appropriate protective gloves, clothing and goggles. Always wear thermal protective clothing when handling refrigerated/cryogenic liquids.
Wear positive pressure self-contained breathing apparatus (SCBA).
Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Attempt to stop leak if without undue personnel hazard. Use water spray to knock-down vapors.
Reactive at high temperature or pressure. Polymerizes by evolution of heat, in; presence of air, oxygen, sunlight or heat.
May react with very hot water or steam to produce toxic fumes.
When heated to decomposition, it emits highly toxic fumes of hydrogen chloride and possibly phosgene vinyl chloride decomposes on burning producing toxic and corrosive fumes (hydrogen chloride and phosgene).
Upper exp. limit, %
Lower exp. limit, %
Do not extinguish fire unless flow can be stopped. Use water in flooding quantities as fog. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible.
Very flammable. Extreme hazard-do not enter.
Vapors are heavier than air and may travel considerable distance to a source of ignition and flash back.. Closed containers may rupture violently when heated.
Forms highly toxic combustion products such as hydrogen chloride, phosgenic, and carbon monoxide.
TLV: 5 ppm; 13 mg/m3 (ACGIH 1993-1994). OSHA PEL: 1910.1017 TWA 1 ppm C 5 ppm 15-minute NIOSH REL: Ca See Appendix A
O, G-A1, I-1, N-1, CP65
VCM may cause CNS depression characterized by fatigue, headache, vertigo, ataxia, euphoria, visual disturbances, numbness and tingling in the extremities, narcosis, loss of consciousness, and death from respiratory failure. Fetotoxicity and congenital malformations have been seen in animals. Human birth defects have not been substantiated.
Nausea, vomiting, diarrhea, and severe epigastric pain can result from ingestion of the liquid.
Various pulmonary abnormalities have occurred including dyspnea, asthma and pneumonoconiosis.
Scleroderma, frostbite, irritation and cyanosis have been reported. Vinyl chloride may be absorbed through the skin.
Contact with escaping, compressed gas may cause mechanical injury and frostbite. The vapor is irritating to the eyes.
This compound is a gas, therefore inhalation is the first route of exposure.
IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. IMMEDIATELY call a physician and be prepared to transport the victim to a hospital even if no symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used.
CAUTION: Exposure of skin to compressed gases may result in freezing of the skin. Treatment for frostbite may be necessary. Remove the victim from the source of contamination. IMMEDIATELY wash affected areas gently with COLD water (and soap, if necessary) while removing and isolating all contaminated clothing. Dry carefully with clean, soft towels. If symptoms such as inflammation or irritation develop, IMMEDIATELY call a physician or go to a hospital for treatment.
First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.