Completing data — usually done within a minute
Basic information
- Standard SMILES
[Ca+2].[Ca+2].[Ca+2].[P-3].[P-3]- InChIKey
HMJZRBDFJAQGEY-UHFFFAOYSA-N- Molecular formula
- Ca3P2
- Average molar mass
- 182.182 g/mol
- Monoisotopic mass
- 181.8352962
Names & identifiers
- Preferred name
- Tricalcium diphosphide
- English name
- CALCIUM PHOSPHIDE
- Molecular formula
- Ca3P2
- Molecular weight
- 182.18
Names & synonyms
Database identifiers
- CAS
1305-99-3、39373-03-0- PubChem CID
- 14780
- DTXSID
DTXSID0058271- UNII
- IQZ9FY9THC
- EC Number
- 215-142-0、254-431-6
Properties
Physicochemical properties
- Melting point
- 1600 °C · 1600°C
- Density
- 2 · 2,51 g/cm3
- solubility
- 2 O; · reacts with H2O; insoluble in ethanol,ethyl ether
- form
- granular
- color
- red-brown hygroscopic crystals, crystalline
- Water Solubility
- 2 O · decomposes in H2O to form flammable phosphine [MER06]; insoluble alcohol, ether [HAW93]
- Sensitive
- Moisture Sensitive
- Merck
- 14 · 14,1695
- FDA UNII
- 9 FY9THC · IQZ9FY9THC
- EPA Substance Registry System
- Calcium phosphide (1305-99-3)
- Symbol(GHS)
- 2 · GHS02,GHS06,GHS09
- Signal word
- Danger
- Hazard statements
- 260 · H260-H300-H400
- Precautionary statements
- 223 · P223-P231+P232-P264-P273-P370+P378-P422
- Hazard Codes
- F,T+,N
- Risk Statements
- 15 · 15/29-28-50
- Safety Statements
- 22 · 22-43-45-61-36/37-28
- RIDADR
- 1360 · UN 1360
- WGK Germany
- 3 · 3
- F
- 10 · 10
- TSCA
- TSCA listed
- HazardClass
- 4.3 · 4.3
- PackingGroup
- I
- Hazardous Substances Data
- 1305 · 1305-99-3(Hazardous Substances Data)
Safety & regulation
Safety data
- F
- 10
- wgk
- 3
- tsca
- TSCA listed
- ridadr
- UN 1360
- risk_code
- 15/29-28-50
- Signal word
- Danger
- Symbol(GHS)
- GHS02,GHS06,GHS09
- hazard_code
- F,T+,N
- safety_code
- 22-43-45-61-36/37-28
- hazard_class
- 4.3
- packing_group
- I
- Hazard statements
- H260-H300-H400
- Precautionary statements
- P223-P231+P232-P264-P273-P370+P378-P422
- Hazardous Substances Data
- 1305-99-3(Hazardous Substances Data)
Chemistry & industry
Applications
DescriptionCalcium phosphide has the molecular formula of Ca3P2 and the molecular weight of 182.1825 g/mol. Its CAS number is 1305-99-3. It is a red-brown crystalline material with a melting point of 1605°C. Its density is 2.51 g/cm3. It readily reacts with water to form phosphine, PH3, but is insoluble in ethanol. It is easily prepared by reacting the metal with red phosphorus at high temperature. The best way is to sublime the P4 at 450°C in an inert gas stream and react it with Mg metal at 750°C: 6Ca + 2P42Ca3P4
UsesFor signal fires; in purification of Cu and Cu alloys; as rodenticide.
UsesMetal phosphides, primarily Ca3P2, have been used as rodenticides. Calcium phosphide baits have strong, pungent garlic-like odor characteristic for phosphine liberated by hydrolysis. The odor attracts rodents, but has a repulsive effect on other animals, who are not receptive to the smell. This salt has uses in incendiary bombs and other explosives. On contact with acids or water, calcium phosphide releases phosphine, which ignites spontaneously. It is also used in fireworks, torpedoes, self-igniting naval pyrotechnic flares, and various water-activated ammunition.
General DescriptionCALCIUM PHOSPHIDE appears as red-brown crystals to gray granular lumps. CALCIUM PHOSPHIDE reacts with water to form calcium hydroxide and phosphine, a flammable poisonous gas. Phosphine will normally ignite spontaneously in contact with air. If there is an excess of water this fire of phosphine will not normally ignite surrounding combustible material.
Upstream & downstream products
Upstream raw materials
Related reactions
No reaction records under the current filter.
Linked notes
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