Cadmium sulfate

Cadmium sulfate
Names
	IUPAC name Cadmium(II) sulfate
	Other names Sulfuric acid, cadmium salt (1:1),;
Identifiers
CAS Number	10124-36-4 ; 7709-84-3 (monohydrate) ; 15244-35-9 (octahydrate) ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:50292 ; CHEBI:86157 (octahydrate);
ChemSpider	23335 ;
ECHA InfoCard	100.030.288
EC Number	233-331-6;
Gmelin Reference	8295
PubChem CID	24962 (anhydrous); 23618914 (tetrahydrate); 16211218 (octahydrate);
RTECS number	EV2700000;
UNII	947UNF3Z6O ;
UN number	2570
CompTox Dashboard (EPA)	DTXSID1020229 ;
	SMILES [Cd+2].[O-]S([O-])(=O)=O;
Properties
Chemical formula	CdSO4 ; CdSO4·H2O (monohydrate) ; 3CdSO4·8H2O (octahydrate)
Molar mass	208.47 g/mol (anhydrous) ; 226.490 g/mol (monohydrate) ; 769.546 g/mol (octahydrate)
Appearance	White hygroscopic solid
Odor	odorless
Density	4.691 g/cm3 (anhydrous) ; 3.79 g/cm3 (monohydrate) ; 3.08 g/cm3 (octahydrate)
Melting point	1,000 °C (1,830 °F; 1,270 K) (anhydrous) ; 105 °C (monohydrate) ; 40 °C (octahydrate)
Boiling point	(decomposes to basic sulfate and then oxide)
Solubility in water	anhydrous: ; 75 g/100 mL (0 °C) ; 76.4 g/100 mL (25 °C) ; 58.4 g/100 mL (99 °C) monohydrate: ; 76.7 g/100 mL (25 °C) octahydrate: ; very soluble
Solubility	slightly soluble in methanol, ethyl acetate ; insoluble in ethanol
Magnetic susceptibility (χ)	-59.2·10−6 cm3/mol
Refractive index (nD)	1.565
Structure
Crystal structure	orthorhombic (anhydrous) ; monoclinic (hepta & octahydrate)
Thermochemistry
Std enthalpy of; formation ΔfHo298	−935 kJ·mol−1
Standard molar; entropy So298	123 J·mol−1·K−1
Hazards
NFPA 704	1 3 0
U.S. Permissible; exposure limit (PEL)	[1910.1027] TWA 0.005 mg/m3 (as Cd)
Related compounds
Other anions	Cadmium acetate,; Cadmium chloride,; Cadmium nitrate
Other cations	Zinc sulfate,; Calcium sulfate,; Magnesium sulfate
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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	Infobox references

Cadmium sulfate is a chemical compound. Its chemical formula is CdSO₄. It is made of cadmium and sulfate ions. The cadmium is in its +2 oxidation state.

Properties[change | change source]

Cadmium sulfate is a white solid. It easily dissolves in water. It is toxic and carcinogenic.

Preparation[change | change source]

Cadmium sulfate is made by dissolving cadmium carbonate, cadmium oxide, or cadmium metal in sulfuric acid.

Uses[change | change source]

Cadmium sulfate is used to electroplate cadmium on electronic circuits. It is also used to make cadmium sulfide, a pigment. It is used as an electrolyte in a certain battery used to make voltmeters accurate.

Related pages[change | change source]

References[change | change source]

↑ Lide, David R., ed. (2006). CRC Handbook of Chemistry and Physics (87th ed.). Boca Raton, FL: CRC Press. ISBN 0-8493-0487-3.
↑ ^2.0 ^2.1 Zumdahl, Steven S. (2009). Chemical Principles 6th Ed. Houghton Mifflin Company. p. A21. ISBN 978-0-618-94690-7.
↑ NIOSH Pocket Guide to Chemical Hazards. "#0087". National Institute for Occupational Safety and Health (NIOSH).

[1] Lide, David R., ed. (2006). CRC Handbook of Chemistry and Physics (87th ed.). Boca Raton, FL: CRC Press. ISBN 0-8493-0487-3.

[b1-2] 2.0 ^2.1 Zumdahl, Steven S. (2009). Chemical Principles 6th Ed. Houghton Mifflin Company. p. A21. ISBN 978-0-618-94690-7.

[PG-3] NIOSH Pocket Guide to Chemical Hazards. "#0087". National Institute for Occupational Safety and Health (NIOSH).

[1]

[2]