Calcium phosphide

Calcium phosphide

Names
IUPAC name Calcium phosphide
Other names Photophor, CP, Polythanol
Identifiers
CAS Number	1305-99-3 Y
3D model (JSmol)	Interactive image
ChemSpider	14097
ECHA InfoCard	100.013.766
EC Number	215-142-0
PubChem CID	4337964
UNII	IQZ9FY9THC Y
CompTox Dashboard (EPA)	DTXSID0058271
InChI InChI=1S/3Ca.2P/q;;+2;2*-1 Key: GOKCLHLCMXPYLQ-UHFFFAOYSA-N
SMILES [Ca+2].[Ca+2].[Ca+2].[P-3].[P-3]
Properties
Chemical formula	Ca3P2
Molar mass	182.18 g/mol
Appearance	red-brown crystalline powder or grey lumps
Density	2.51 g/cm3
Melting point	~1600 °C
Solubility in water	decomposes
Hazards
Occupational safety and health (OHS/OSH):
Main hazards	Source of toxic phosphine, dangerous reaction with water
GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H260, H300, H311, H318, H330, H400
Precautionary statements	P231+P232, P233, P280, P301+P310, P405, P501
NFPA 704 (fire diamond)	4 0 3 W
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is YN ?) Infobox references

Calcium phosphide (CP) is the inorganic compound with the formula Ca₃P₂. It is one of several phosphides of calcium, being described as the salt-like material composed of Ca²⁺ and P³⁻. Other, more exotic calcium phosphides have the formula CaP / Ca₂P₂, CaP₃, and Ca₅P₈.

Ca₃P₂ has the appearance of red-brown crystalline powder or grey lumps. Its trade name is Photophor for the incendiary use or Polytanol for the use as rodenticide.^{[citation needed]}