Calcium hypophosphite

Structural formula
General
Surname	Calcium hypophosphite
other names	Calcium phosphinate Calcium hypophosphorosum
Molecular formula	Ca (H 2 PO 2 ) 2
Brief description	gray solid
External identifiers / databases
CAS number 7789-79-9 EC number 232-190-8 ECHA InfoCard 100.029.264 PubChem 15806572 Wikidata Q426156
properties
Molar mass	170.05 g mol −1
Physical state	firmly
Melting point	(Decomposition)
solubility	soluble in water practically insoluble in ethanol
safety instructions
GHS labeling of hazardous substances danger H and P phrases H: 228 P: 210-280-240-241-370 + 378
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Calcium hypophosphite is a chemical compound from the group of phosphinates or hypophosphites.

Extraction and presentation

Calcium hypophosphite is obtained through the action of white phosphorus on boiling milk of lime .

${\displaystyle \mathrm {3\ Ca(OH)_{2}+2\ P_{4}+6\ H_{2}O\longrightarrow } }$ ${\displaystyle \mathrm {3\ Ca(H_{2}PO_{2})_{2}+2\ PH_{3}} }$

properties

Calcium hypophosphite is the calcium salt of hypophosphorous acid ( hypophosphorous acid ). When heated, it decomposes with evolution of hydrogen phosphide .

use

Calcium hypophosphite is used in homeopathy . In medicine, like sodium hypophosphite , it is used as a tonic. It can also be used to detect arsenic .

See also

• Calcium phosphite

Web links

• Process for the production of alkali metal hypophosphites on patent-de

Individual evidence

1. ↑ ^{a b c d e f} data sheet Calcium Hypophosphite at AlfaAesar, accessed on December 5, 2016 ( PDF )(JavaScript required) .
2. ↑ homoeopathie-liste.de: Calcium hypophosphoricum
3. ↑ Niederer, Traugott: Study on the qualitative purity testing of inorganic medicinal substances , dissertation, ETH Zurich, 1926. doi : 10.3929 / ethz-a-000131822 .