Cadmium chromate

Cadmium chromate is the inorganic compound with the formula CdCrO₄. It is relevant to chromate conversion coating, which is used to passivate common metal alloys such as aluminium, zinc, cadmium, copper, silver, magnesium, and tin.^[2] In conversion coating chromate reacts with these metals to prevent corrosion, retain electrical conductivity, and provide a finish for the appearance of the final alloy products.^[3] This process is commonly used on hardware and tool items. Chromate species take on their distinctive yellow color when coated.

Cadmium chromate

Names
IUPAC name Cadmium chromate
Identifiers
CAS Number	14312-00-6
3D model (JSmol)	Interactive image
ChemSpider	14560858
ECHA InfoCard	100.034.759
EC Number	238-252-0
PubChem CID	20065476
UNII	TAZ4TV25KL
CompTox Dashboard (EPA)	DTXSID101030489
InChI InChI=1S/Cd.Cr.4O/q+2;;;;2*-1 Key: GLPMHULIKFGNIJ-UHFFFAOYSA-N InChI=1/Cd.Cr.4O/q+2;;;;2*-1/rCd.CrO4/c;2-1(3,4)5/q+2;-2 Key: GLPMHULIKFGNIJ-QCFQOAFPAB
SMILES [O-][Cr](=O)(=O)[O-].[Cd+2]
Properties
Chemical formula	CdCrO4
Molar mass	228.405
Appearance	yellow orthorhombic crystal
Density	4.5 g/cm3
Magnetic susceptibility (χ)	-16.8·10−6 cm3/mol
Hazards
NIOSH (US health exposure limits):
PEL (Permissible)	[1910.1027] TWA 0.005 mg/m3 (as Cd)[1]
REL (Recommended)	Ca[1]
IDLH (Immediate danger)	Ca [9 mg/m3 (as Cd)][1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

References

1. NIOSH Pocket Guide to Chemical Hazards. "#0087". National Institute for Occupational Safety and Health (NIOSH).
2. Buschow, K.H. Jürgen; Cahn, Robert W.; Flemings, Merton C.; Ilschner, Bernhard; Kramer, Edward J.; Mahajan, Subhash (Editors), Encyclopedia of Materials - Science and Technology (2001) p. 1265, Elsevier, Oxford, UK
3. Frankel, Gerald S; Gerald s. Frankel, Robert Peter Frankenthal (2002). Corrosion Science: A Retrospective and Current Status in Honor of Robert P. Frankenthal. The Electrochemical Society. ISBN 9781566773355.