Cadmium phosphate

Structural formula
General
Surname	Cadmium phosphate
other names	Cadmium orthophosphate
Molecular formula	Cd 3 (PO 4 ) 2
Brief description	colorless solid
External identifiers / databases
CAS number 13477-17-3 EC number 236-764-9 ECHA InfoCard 100.033.408 PubChem 26060 Wikidata Q15627963
properties
Molar mass	527.18 g mol −1
Physical state	firmly
density	5.17 g cm −3
Melting point	1180 ° C
solubility	practically insoluble in water
safety instructions
GHS hazard labeling from  Regulation (EC) No. 1272/2008 (CLP) , expanded if necessary Caution H and P phrases H: 332-312-302-410 P: ?
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Cadmium phosphate is an inorganic chemical compound of cadmium from the group of phosphates .

Extraction and presentation

Cadmium phosphate can be obtained by reacting solutions of cadmium salts with sodium phosphate .

${\displaystyle \mathrm {3\ CdCl_{2}+2\ Na_{3}PO_{4}\ \longrightarrow \ Cd_{3}(PO_{4})_{2}+6\ NaCl} }$

properties

Cadmium phosphate is a colorless solid that is practically insoluble in water. It has a monoclinic crystal structure with the space group P 2 ₁ / c (space group no. 14) .

use

Cadmium phosphate can be used to produce the semiconductor compound tricadmium diphosphide .

Related links

• Cadmium pyrophosphate Cd ₂ P ₂ O ₇
• acidic cadmium orthophosphate

Individual evidence

1. ↑ ^{a b c d e f} R. Blachnik: Pocket book for chemists and physicists Volume 3: Elements, inorganic compounds and materials, minerals . Springer-Verlag, 2013, ISBN 978-3-642-58842-6 , pp. 368 ( limited preview in Google Book search).
2. ↑ Entry on cadmium compounds in the GESTIS substance database of the IFA , accessed on February 1, 2016(JavaScript required) .
3. ↑ Not explicitly listed in Regulation (EC) No. 1272/2008 (CLP) , but with the specified labeling it falls under the group entry cadmium compounds, with the exception of cadmium selenosulphide (xCdS.yCdSe) and reaction mass of cadmium sulphide and zinc sulphide (xCdS.yZnS) , Reaction mass of cadmium sulphide and mercury sulphide (xCdS yHgS) as well as the cadmium compounds that are listed separately in this appendix in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on December 20, 2016. Manufacturers or distributors can use the harmonized classification and expand labeling .
4. ↑ RJ Meyer: Cadmium system number 33 . Springer-Verlag, 1925, ISBN 978-3-662-11295-3 , p. 156 ( limited preview in Google Book search).
5. ↑ V. Bagula Sankrithyan, DR Rao, RA Tewari: On the energy storage properties of cadmium phosphate (α-Cd3 (PO4) 2). In: Nuclear Tracks and Radiation Measurements (1982). 10, 1985, p. 249, doi : 10.1016 / 0735-245X (85) 90030-4 .