Calcium phosphide

Calcium phosphide
Names
IUPAC name
Calcium phosphide
Other names
Photophor, CP, Polythanol
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.013.766 Edit this at Wikidata
EC Number
  • 215-142-0
UNII
  • InChI=1S/3Ca.2P/q;;+2;2*-1
    Key: GOKCLHLCMXPYLQ-UHFFFAOYSA-N
  • [Ca+2].[Ca+2].[Ca+2].[P-3].[P-3]
Properties
Ca3P2
Molar mass 182.18 g/mol
Appearance red-brown crystalline powder or grey lumps
Density 2.51 g/cm3
Melting point ~1600 °C
decomposes
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 Source of toxic phosphine, dangerous reaction with water
GHS labelling:
GHS02: FlammableGHS05: CorrosiveGHS06: ToxicGHS09: Environmental hazard
Danger
H260, H300, H311, H318, H330, H400
P231+P232, P233, P280, P301+P310, P405, P501
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 4: Very short exposure could cause death or major residual injury. E.g. VX gasFlammability 0: Will not burn. E.g. waterInstability 3: Capable of detonation or explosive decomposition but requires a strong initiating source, must be heated under confinement before initiation, reacts explosively with water, or will detonate if severely shocked. E.g. hydrogen peroxideSpecial hazard W: Reacts with water in an unusual or dangerous manner. E.g. sodium, sulfuric acid
4
0
3
W
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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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]