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Registry of Toxic Effects of Chemical Substances (RTECS)

Cyanogen bromide

RTECS #

GT2100000

CAS #

506-68-3

Updated

July 2013

Molecular Weight

105.93

Molecular Formula

CBrN

Synonyms

Bromine cyanide
Bromocyan
Bromocyanide
Bromocyanogen
Bromure de cyanogen (French)
Campilit
Cyanobromide
Cyanogen monobromide
RCRA waste number U246
TL 822

Acute Toxicity Data and References

Route/OrganismDoseEffectReference
inhalation/human Lowest published lethal concentration: 92 ppm/10MNTIS** PB214-270
inhalation/mouse Lowest published lethal concentration: 500 mg/m3/10MNDRC** No.9-4-1-9,1943

Standards and Regulations

OrganizationStandardReference
Occupational Exposure Limit-AUSTRALIAtime-weighted average 5 mg(CN)/m3, JUL2008
Occupational Exposure Limit-GERMANYMAK 2 mg(CN)/m3, inhal, 2011
Occupational Exposure Limit-HUNGARYtime-weighted average 5 mg(CN)/m3, short term exposure limit 20 mg(CN)/m3, Skin, SEP2000
Occupational Exposure Limit-MEXICOtime-weighted average 5 mg(CN)/m3, 2004
Occupational Exposure Limit-SWITZERLANDceiling concentration 2 mg(CN)/m3, inhal, skin, JAN2011
Occupational Exposure Limit-UNITED KINGDOMtime-weighted average 5 mg(CN)/m3, skin, OCT2007

NIOSH Documentation and Surveillance

OrganizationStandardReference
National Occupational Exposure Survey 1983Hazard Code 84594; Number of Industries 3; Total Number of Facilities 54; Number of Occupations 5; Total Number of Employees Exposed 2172; Total Number of Female Employees Exposed 605
National Occupational Hazard Survey 1974Hazard Code 84594; Number of Industries 4; Total Number of Facilities 231; Number of Occupations 4; Total Number of Employees Exposed 2222

Status in Federal Agencies

OrganizationReference
EPA TSCA Section 8(b) CHEMICAL INVENTORY
EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JANUARY 2001
On EPA IRIS database
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