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| CAS No.: | 1305-99-3 |
|---|---|
| Name: | CALCIUM PHOSPHIDE |
| Article Data: | 4 |
| Molecular Structure: | |
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|
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| Formula: | Ca3P2 |
| Molecular Weight: | 71.0518 |
| Synonyms: | Calcium phosphide [UN1360] [Dangerous when wet];Tricalcium diphosphide;tricalcium phosphorus(-3) anion;Photophor;Phosphoric acid,compounds,calcium salt (2:3);Calcium photophor; |
| EINECS: | 215-142-0 |
| Density: | g/cm3 |
| Melting Point: | 1600°C |
| Boiling Point: | °Cat760mmHg |
| Flash Point: | °C |
| Solubility: | decomposes in H2O to form flammable phosphine [MER06]; insoluble alcohol, ether [HAW93] |
| Hazard Symbols: | Dangerous fire risk; decomposed by water to phosphine, which is highly toxic and flammable. See Phosphine. |
| Risk Codes: | 15/29-28-50 |
| Safety: | Highly toxic due to phosphide, which in presence of moisture emits phosphine. The phosphine may ignite spontaneously in air. Incandescent reaction with oxygen at 300°C. Incompatible with dichlorine oxide. When heated to decomposition it emits toxic fumes of POx. See also CALCIUM COMPOUNDS and PHOSPHIDES. |
| PSA: | 46.94000 |
| LogP: | 1.18700 |
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Chemistry
Chemistry informtion about Calcium Phosphide (CAS NO.1305-99-3) is:
IUPAC Name: Tricalcium Phosphorus(3-)
Synonyms: Calcium Phosphide;Tricalcium Diphosphide;Calciumphosphide(Ca3p2);Calciumphosphide[Ca3P2];Calciumphotophor;Photophor;Calciumphosphidepiecesanddown;Calcium Phosphide, Granulated Material
Product Categories: Inorganic Salts;Synthetic Reagents;CalciumMetal and Ceramic Science;Ceramics;Phosphide
MF: Ca3P2
MW: 182.18
EINECS: 215-142-0
Density: 2,51 g/cm3
Melting Point: 1600°C
Form: granular
Sensitive Moisture: Sensitive
Merck: 14,1695
Following is the molecular structure of Calcium Phosphide (CAS NO.1305-99-3) is:
Uses
Calcium Phosphide (CAS NO.1305-99-3) has uses in incendiary bombs. It is also used in fireworks, torpedoes, self-igniting naval pyrotechnic flares, and various water-activated ammunition. During 1920's and 1930's, Charles Kingsford Smith used separate buoyant canisters of calcium carbide and calcium phosphide as naval flares lasting up to ten minutes. It is speculated that calcium phosphide was an ingredient of some ancient Greek fire formulas.
Production
Raw materials are Aluminium-->Argon-->Calcium phosphate-->Calcium .
Consensus Reports
Reported in EPA TSCA Inventory.
Safety Profile
Highly toxic due to phosphide, which in presence of moisture emits phosphine. The phosphine may ignite spontaneously in air. Incandescent reaction with oxygen at 300°C. Incompatible with dichlorine oxide. When heated to decomposition it emits toxic fumes of POx. See also CALCIUM COMPOUNDS and PHOSPHIDES.
Hazard Codes:
F
T+
N
Risk Statements:
R15/29:Contact with water liberates extremely flammable gases and contact with water liberates toxic gas.
R28:Very toxic if swallowed.
R50:Very toxic to aquatic organisms.
Safety Statements:
S22:Do not breathe dust.
S43:In case of fire use ... (there follows the type of fire-fighting equipment to be used.)
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
S61:Avoid release to the environment. Refer to special instructions / safety data sheets.
RIDADR: UN 1360 4.3/PG 1
WGK Germany: 3
F:
F 10: Keep under argon.
HazardClass: 4.3
PackingGroup: I
Standards and Recommendations
DOT Classification: 4.3; Label: Dangerous When Wet, Poison
Specification
Calcium Phosphide (CAS NO.1305-99-3) has the appearance of red-brown crystalline powder or grey lumps, with melting point of 1600 °C. Its trade name is Photophor for the incendiary use or Polythanol for the use as rodenticide. On contact with acids or water, calcium phosphide releases phosphine, which ignites spontaneously.It 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.
Reactivity Profile Calcium Phosphide and hydrochloric acid undergo a very energetic reaction.Calcium and other alkaline earth phosphides incandesce in oxygen when heated. Inhalation or ingestion causes faintness, weakness, nausea, vomiting. External contact with dust causes irritation of eyes and skin. Behavior in Fire: Can cause spontaneous ignition if wet. Contributes dense smoke of phosphoric acid.