Lead(II) thiocyanate
Agent Name
Lead(II) thiocyanate
CAS Number
592-87-0
Formula
C2-N2-S2.Pb
Major Category
Metals
Synonyms
Isothiocyanic acid, lead(2+) salt; Lead dithiocyanate; Lead isothiocyanate; Lead sulfocyanate; Lead thiocyanate (Pb(SCN)2); Lead(II) thiocyanate (Pb(NCS)2); [ChemIDplus] UN2291 [MSDSonline]
Category
Lead Compounds, Inorganic
Description
White to yellow crystals; [CAMEO]
Sources/Uses
Used to reverse aniline black dyeing; also used to make safety matches and cartridges; [Merck Index] Used in priming mix of small-arms cartridges; [Hawley]
Comments
A skin irritant; Can cause lead poisoning after ingestion or inhalation; [CAMEO] May liberate toxic hydrogen cyanide gas after contact with acid; [MSDSonline] See "Lead" and linked occupational diseases. See "CYANIDES."
Biomedical References
Exposure Assessment
BEI
Lead in blood = 200 ug/L (20 ug/100 ml); sampling time not critical; [ACGIH]
TLV (ACGIH)
0.05 mg/m3, as Pb
PEL (OSHA)
0.05 mg/m3, as Pb
Explanatory Notes
Melting point = 374 deg F; [MSDSonline]
NFPA
will not burn
Adverse Effects
Neurotoxin
Predominantly motor
Hepatotoxin
Hepatoxic (a) from occupational exposure (secondary effect) or (b) in animal studies or in humans after ingestion
Nephrotoxin
Yes
Reproductive Toxin
Yes
IARC Carcinogen
Not classifiable
NTP Carcinogen
Anticipated human carcinogen
ACGIH Carcinogen
Confirmed Animal
Other Poison
Chemical Asphyxiant
Diseases, Processes, and Activities Linked to This Agent
Diseases
Occupational diseases associated with exposure to this agent: