Cyanogen chloride
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Synonyms & Trade Names
Chlorcyan, Chlorine cyanide, Chlorocyanide, ChlorocyanogenPhysical Description
Colorless gas or liquid (below 55°F) with an irritating odor. [Note: Shipped as a liquefied gas. A solid below 20°F. Forms cyanide in the body.]Molecular Weight
61.5Boiling Point
55°FFreezing Point
20°FSolubility
7%Vapor Pressure
1010 mmHgIonization Potential
12.49 eVSpecific Gravity
1.22 (Liquid at 32°F)Flash Point
NAUpper Exposive Limit
NALower Explosive Limit
NARelative Gas Density
2.16
Nonflammable Gas
Incompatibilities & Reactivities
Water, acids, alkalis, ammonia, alcohols [Note: Can react very slowly with water to form hydrogen cyanide. May be stabilized to prevent polymerization.]Exposure Routes
inhalation, skin absorption (liquid), ingestion (liquid), skin and/or eye contact (liquid)Symptoms
irritation eyes, upper respiratory system; cough, delayed pulmonary edema; lassitude (weakness, exhaustion), headache, dizziness, confusion, nausea, vomiting; irreg heartbeat; irritation skin (liquid)Target Organs
Eyes, skin, respiratory system, central nervous system, cardiovascular systemPersonal Protection/Sanitation
(See protection codes)Skin:Prevent skin contact (liquid)
Eyes:Prevent eye contact (liquid)
Wash skin:When contaminated (liquid)
Remove:When wet or contaminated (liquid)
Change:No recommendation
Provide:Eyewash (liquid), Quick drench (liquid)
First Aid
(See procedures)Eye:Irrigate immediately
Skin:Water wash immediately (liquid)
Breathing:Respiratory support
Swallow:Medical attention immediately (liquid)
Respirator Recommendations
Not available.
- Page last reviewed:April 11, 2016
- Page last updated:April 11, 2016
- Content source:
- National Institute for Occupational Safety and Health (NIOSH) Education and Information Division