Cadmium acetate

Structural formula
General
Surname	Cadmium acetate
other names	Cadmium acetic acid
Molecular formula	C 4 H 6 CdO 4
Brief description	colorless columnar crystals
External identifiers / databases
EC number	208-853-2
ECHA InfoCard	100.008.049
PubChem	10986
ChemSpider	10521
Wikidata	Q419714
properties
Molar mass	230.50 g mol −1 (anhydrous)
Physical state	firmly
density	2.01 g cm −3 (dihydrate); 2.341 g cm −3 (anhydrous);
Melting point	130 ° C (water release); 256 ° C (anhydrous);
solubility	easily in water (2.01 g ml −1 at 20 ° C)
safety instructions
H and P phrases	H: 302-312-332-350-410
	P: 201-261-281-302 + 352-304 + 340-312
Toxicological data	333 mg kg −1 ( LD 50 , rat , oral )
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Cadmium acetate is a chemical compound of cadmium and a salt of acetic acid with the constitutional formula Cd (CH ₃ COO) ₂ . It is a white, hygroscopic substance with a typical, slightly vinegar-like odor.

Extraction and presentation

Cadmium acetate dihydrate precipitates from an aqueous acetic acid solution. It can be obtained directly from cadmium nitrate and acetic anhydride .

{\ displaystyle \ mathrm {Cd (NO_ {3}) _ {2} \ cdot 4 \ H_ {2} O + 2 \ (CH_ {3} CO) _ {2} O \ rightarrow}}

{\ displaystyle \ mathrm {\ Cd (CH_ {3} COO) _ {2} +2 \ CH_ {3} COOH + 2 \ NO_ {2} \ uparrow + \ 3 \ H_ {2} O}}

properties

At 130 ° C, cadmium acetate hydrate releases the water of crystallization and the anhydrous cadmium acetate is formed. It dissolves in water with a neutral pH . It is also readily soluble in ethanol .

use

Cadmium acetate is used in porcelain production to create iridescent effects. In addition, it is a reagent in analytical chemistry for the detection of sulfur , selenium and tellurium .

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g Entry on cadmium acetate in the GESTIS substance database of the IFA , accessed on January 8, 2018(JavaScript required) .
↑ ^a ^b Ernst Späth: On the effect of acetic anhydride on nitrates. In: Monthly magazine for chemistry. 1912, 33, 3, p. 241, doi : 10.1007 / BF01519254 .
↑ Not explicitly listed in Regulation (EC) No. 1272/2008 (CLP) , but with the specified labeling it falls under the group entry Cadmium compounds in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on February 1, 2016 . marketer can use the harmonized classification and labeling expand .
↑ Data sheet cadmium acetate (PDF) from Merck , accessed on August 29, 2010.
^ Arnold Willmes: Pocket book chemical substances: elements - inorganic - organic. 3rd edition, Harri Deutsch, 2007, ISBN 978-3-8171-1787-1 , p. 242 ( limited preview in the Google book search).
↑ ^a ^b entry on cadmium acetate. In: Römpp Online . Georg Thieme Verlag, accessed on January 3, 2015.

[gestis-1] ↑ ^a ^b ^c ^d ^e ^f ^g Entry on cadmium acetate in the GESTIS substance database of the IFA , accessed on January 8, 2018(JavaScript required) .

[späth-2] Ernst Späth: On the effect of acetic anhydride on nitrates. In: Monthly magazine for chemistry. 1912, 33, 3, p. 241, doi : 10.1007 / BF01519254 .

[CLP_100.239.173-3] Not explicitly listed in Regulation (EC) No. 1272/2008 (CLP) , but with the specified labeling it falls under the group entry Cadmium compounds in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on February 1, 2016 . marketer can use the harmonized classification and labeling expand .

[4] Data sheet cadmium acetate (PDF) from Merck , accessed on August 29, 2010.

[5] Arnold Willmes: Pocket book chemical substances: elements - inorganic - organic. 3rd edition, Harri Deutsch, 2007, ISBN 978-3-8171-1787-1 , p. 242 ( limited preview in the Google book search).

[römpp-6] try on cadmium acetate. In: Römpp Online . Georg Thieme Verlag, accessed on January 3, 2015.