Cupric ferrocyanide
Agent Name
Cupric ferrocyanide
CAS Number
13601-13-3
Formula
C6-Fe-N6.2Cu
Major Category
Metals
Synonyms
Dicopper hexacyanoferrate; Ferrate(4-), hexakis(cyano-C)-, copper(2+) (1:2); [ChemIDplus] Hexakis(cyano-C)ferrate(4-) copper (2+) (1:2); Hexacyanoferrate(4-) dicopper(2+); Cupric hexacyanoferrate(II); Hatchett’s brown; C.I. Pigment Brown 9; [Merck Index]
Category
Metals, Inorganic Compounds
Description
Reddish-brown solid; [Merck Index]
Sources/Uses
Used in pigments, photographic toning baths, and electrode-to-soil contacts; [Merck Index]
Comments
Ferrocyanide complexes are stable and practically nontoxic because of the strong bonding between iron and cyanide. Cyanide ions may be formed slowly when the chemical is irradiated with UV light. [Ullmann] May cause irritation; [MSDSonline]
Biomedical References
Exposure Assessment
TLV (ACGIH)
1 mg/m3, as Cu
PEL (OSHA)
1 mg/m3, as Cu
MAK
0.01 mg/m3, respirable fraction (Cu, inorganic cmpnds)
IDLH (NIOSH)
100 mg/m3, as Cu
Adverse Effects
Other Poison
Chemical Asphyxiant
Diseases, Processes, and Activities Linked to This Agent
Processes
Industrial Processes with risk of exposure: