Sodium dithiophosphate

Structural formula
General
Surname	Sodium dithiophosphate
Molecular formula	Na 3 PO 2 S 2
External identifiers / databases
PubChem	20430759
Wikidata	Q4115959
properties
Molar mass	196.07 g mol −1
Physical state	firmly
Melting point	45-56 ° C
safety instructions
GHS hazard labeling ; no classification available
GHS hazard labeling ; no classification available
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Sodium dithiophosphate is a chemical compound of sodium and a salt of dithiophosphoric acid .

Extraction and presentation

Sodium dithiophosphate can be obtained by reacting phosphorus (V) sulfide with sodium hydroxide solution and subsequent hydrolysis of the higher thiophosphates formed at the same time .

properties

Sodium dithiophosphate undecahydrate forms six-sided prismatic crystals when the aqueous solution cools slowly, and needles up to 2 cm in length when cooled quickly. It has a crystal structure with the space group P 2 ₁ 2 ₁ 2 ₁ (space group no. 19) . The anhydrate has a crystal structure with the space group Pbca (No. 61) . From 350 ° C it decomposes to Na ₃ PO ₃ S and Na ₃ POS ₃ . Template: room group / 19Template: room group / 61

use

Natriumdithiophosphat becomes the flotation of molybdenum ore used.

Individual evidence

↑ ^a ^b ^c ^d Georg Brauer (Ed.), With the collaboration of Marianne Baudler a . a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume I, Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6 , p. 551.
↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
↑ Markus Pompetzki, Martin Jansen: Crystal Structures of Na3PO2S211H2O and Na3POS311H2O. In: Monthly books for chemistry / Chemical Monthly. 133, 2002, pp. 975-986, doi : 10.1007 / s007060200067 .
↑ Markus Pompetzki, Robert E. Dinnebier, Martin Jansen: Sodium dithiophosphate (V): Crystal structure, sodium ionic conductivity and dismutation. In: Solid State Sciences . 5, 2003, pp. 1439-1444, doi : 10.1016 / j.solidstatesciences.2003.07.002 .
^ CK Gupta: Extractive Metallurgy of Molybdenum . CRC Press, 1992, ISBN 0-8493-4758-0 , pp. 99 ( limited preview in Google Book search).

[brauer-1] Georg Brauer (Ed.), With the collaboration of Marianne Baudler a . a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume I, Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6 , p. 551.

[NV-2] This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.

[DOI10.1007/s007060200067-3] Markus Pompetzki, Martin Jansen: Crystal Structures of Na3PO2S211H2O and Na3POS311H2O. In: Monthly books for chemistry / Chemical Monthly. 133, 2002, pp. 975-986, doi : 10.1007 / s007060200067 .

[DOI10.1016/j.solidstatesciences.2003.07.002-4] Markus Pompetzki, Robert E. Dinnebier, Martin Jansen: Sodium dithiophosphate (V): Crystal structure, sodium ionic conductivity and dismutation. In: Solid State Sciences . 5, 2003, pp. 1439-1444, doi : 10.1016 / j.solidstatesciences.2003.07.002 .

[C._K._Gupta-5] CK Gupta: Extractive Metallurgy of Molybdenum . CRC Press, 1992, ISBN 0-8493-4758-0 , pp. 99 ( limited preview in Google Book search).