Cadmium_chromate Knowpia

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;
	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)
REL (Recommended)	Ca
IDLH (Immediate danger)	Ca [9 mg/m3 (as Cd)]
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

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.

References edit

^ ^a ^b ^c NIOSH Pocket Guide to Chemical Hazards. "#0087". National Institute for Occupational Safety and Health (NIOSH).
^ 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
^ 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.

[PGCH-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.

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Summary

References edit