Agent Name

Cyanogen chloride

CAS Number

506-77-4

Formula

C-Cl-N

Major Category

Toxic Gases & Vapors

Synonyms

Chlorcyan; Chlorine cyanide; Chlorine cyanide (ClCN); Chlorocyan; Chlorocyanide; Chlorocyanogen; Chlorure de cyanogene [French]; Cyanogen chloride; [ChemIDplus] UN1589

Category

Cyanides

Description

Colorless gas or liquid (below 55 degrees F) with an irritating odor; Note: Shipped as a liquefied gas. A solid below 20 degrees F. Forms cyanide in the body; [NIOSH]

Sources/Uses

Used in organic synthesis, a warning gas in fumigants, and as a military poison gas; May be generated in a reaction of hypochlorite and cyanide solutions in waste water treatment; [ACGIH] Used in metal cleaning and ore refining; [ATSDR ToxProfiles]

Comments

Liquid causes second or third degree burns after short contact; [CHRIS] In animal inhalation studies, cyanogen chloride causes severe irritation of the respiratory tract and pulmonary edema. Workers treating cyanide plating solutions with hypochlorite had to leave the work area because of eye and nose irritation when the air concentration was measured at 0.7 ppm (1.78 mg/m3). Has a pungent odor detectable at 1 ppm; Causes irritation at >1 ppm and death within 30 minutes at 48 ppm; [ACGIH] Effects are similar to those of hydrogen cyanide; A pulmonary irritant and lacrimator; [HSDB]

Exposure Assessment
Skin Designation (ACGIH)

Insufficient data

TIH

Yes

Ceiling (ACGIH)

0.75 mg/m3

IDLH (NIOSH)

25 mg/m3, as CN

Odor Threshold Low

1 mg/m3

Explanatory Notes

The Guide from the Emergency Response Guidebook is for "cyanogen chloride, inhibited." Detection odor threshold ; [CHEMINFO]

Reference Link

ICSC: Cyanogen chloride

Adverse Effects
Lacrimator

Yes

Toxic Pneumonitis

Yes

Other Poison

Chemical Asphyxiant

Dermatotoxin

Skin Burns

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

Chemical Information

Search ChemIDplus

Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent:

Processes

Industrial Processes with risk of exposure: