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Calcium phosphide

Calcium phosphide

Payment Terms : Telegraphic Transfer (T/T)
Sample Price : Depending on exchange rate fluctuations
Delivery Time : within 7 working days(depends on your quantity)
Place of Origin : China
Pack. & Delivery : 200kg/drum, drying surrounding and airproof storage.
Category : Carbonate
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Product name: Calcium phosphide
CAS: 1305-99-3
Molecular formula: Ca3P2
Molecular weight: 182.18
Appearance: red-brown crystalline powder or grey lumps
Fusion point: 1600centigrade
Density: 2.51
Packing: 200kg/ drum, drying surrounding and airproof storage.
Product Description:
Calcium phosphide ( CP, Ca3P2) is a chemical is used in incendiary bombs. It has the appearance of red-brown crystalline powder or grey lumps, with melting point of 1600 centigrade. Its trade name is Photophor for the incendiary use or Polytanol for the use as rodenticide.
It may be formed by reaction of the elements. On contact with acids or water, calcium phosphide releases phosphine, which ignites spontaneously.
Metal phosphides have been used as rodenticides. A mixture of food and calcium phosphide is left where the rodents can eat it. The acid in the digestive system of the rodent reacts with the phosphide to generate the toxic phosphine gas. This method of vermin control has possible use in places where rodents immune to many of the common poisons have appeared. Other pesticides similar to calcium phosphide are zinc phosphide and aluminium phosphide.
Calcium phosphide is also used in fireworks, torpedoes, self-igniting naval pyrotechnic flares, and various water-activated ammunition. During 1920s and 1930s, 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.
Calcium phosphide is a common impurity in calcium carbide, which may cause the resulting phosphine-contaminated acetylene to ignite spontaneously.

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