# NIOSH Pocket Guide to Chemical Hazards
Cyanogen | CAS 460-19-5
NCCN | RTECS GT1925000
Synonyms & Trade Names Carbon nitride, Dicyan, Dicyanogen, Ethanedinitrile, Oxalonitrile | DOT ID & Guide 1026 119
Exposure Limits | NIOSH REL: TWA 10 ppm (20 mg/m3)
OSHA PEL†: none
IDLH N.D. | Conversion 1 ppm = 2.13 mg/m3
Physical Description Colorless gas with a pungent, almond-like odor. [Note: Shipped as a liquefied compressed gas. Forms cyanide in the body.]
MW: 52.0 | BP: -6°F | FRZ: -18°F | Sol: 1%
VP(70°F): 5.1 atm | IP: 13.57 eV | RGasD: 1.82 | Sp.Gr: 0.95 (Liquid at -6°F)
Fl.P: NA (Gas) | UEL: 32% | LEL: 6.6% |
Flammable Gas
Incompatibilities & Reactivities Acids, water, strong oxidizers (e.g., dichlorine oxide, fluorine) [Note: Slowly hydrolyzed in water to form hydrogen cyanide, oxalic acid, or ammonia.]
Measurement Methods None available
Personal Protection & Sanitation Skin: Frostbite Eyes: Prevent eye contact/Frostbite Wash skin: No recommendation Remove: When wet (flammable) Change: No recommendation Provide: Frostbite | First Aid (See procedures) Eye: Frostbite Skin: Frostbite Breathing: Respiratory support
Respirator Recommendations To be added later
Exposure Routes inhalation, skin and/or eye contact
Symptoms Irritation eyes, nose, upper respiratory system; lacrimation (discharge of tears); cherry red lips, tachypnea, hypernea, bradycardia; headache, convulsions; dizziness, loss of appetite, weight loss; liquid: frostbite
Target Organs Eyes, respiratory system, central nervous system, cardiovascular system
See also: INTRODUCTION