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CALCIUM PHOSPHIDE

CALCIUM PHOSPHIDE Basic information
Product Name:CALCIUM PHOSPHIDE
Synonyms:CALCIUM PHOSPHIDE;Tricalcium diphosphide;calciumphosphide(ca3p2);calciumphosphide[ca3p2];calciumphotophor;photophor;Calciumphosphidepiecesanddown;CALCIUM PHOSPHIDE, GRANULATED MATERIAL
CAS:1305-99-3
MF:Ca3P2
MW:182.18
EINECS:215-142-0
Product Categories:inorganic compound;Inorganic Salts;Synthetic Reagents;CalciumMetal and Ceramic Science;Ceramics;Phosphide
Mol File:1305-99-3.mol
CALCIUM PHOSPHIDE Structure
CALCIUM PHOSPHIDE Chemical Properties
Melting point 1600°C
density 2,51 g/cm3
form granular
Water Solubility decomposes in H2O to form flammable phosphine [MER06]; insoluble alcohol, ether [HAW93]
Sensitive Moisture Sensitive
Merck 14,1695
EPA Substance Registry SystemCalcium phosphide (1305-99-3)
Safety Information
Hazard Codes F,T+,N
Risk Statements 15/29-28-50
Safety Statements 22-43-45-61-36/37-28
RIDADR UN 1360 4.3/PG 1
WGK Germany 3
10
HazardClass 4.3
PackingGroup I
Hazardous Substances Data1305-99-3(Hazardous Substances Data)
MSDS Information
ProviderLanguage
SigmaAldrich English
ALFA English
CALCIUM PHOSPHIDE Usage And Synthesis
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 + 2P4?2Ca3P4
Chemical PropertiesCalcium phosphide is a gray granular solid or reddish-brown crystalline solid. It has a musty odor, somewhat like acetylene.
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.
Reactivity ProfileCALCIUM PHOSPHIDE and hydrochloric acid undergo a very energetic reaction [Mellor 8:841 1946-47]. Calcium and other alkaline earth phosphides incandesce in oxygen when heated.
HazardDangerous fire risk; decomposed by water to phosphine, which is highly toxic and flammable. See phosphine.
Health HazardInhalation or ingestion causes faintness, weakness, nausea, vomiting. External contact with dust causes irritation of eyes and skin.
Fire HazardBehavior in Fire: Can cause spontaneous ignition if wet. Contributes dense smoke of phosphoric acid.
Safety ProfileHighly toxic due to phosphde, 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.
Potential ExposureA strong reducing agent. Forms spontaneously combustible phosphine gas in moist air. Contact with water or acids release phosphine gas, and can cause explosions. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides, chlorine monoxide, halogens, halogen acids, oxygen, sulfur
ShippingUN1360 Calcium phosphide, Hazard Class: 4.3; Labels: 4.3-Dangerous when wet material
IncompatibilitiesA strong reducing agent. Forms spontaneously combustible phosphine gas in moist air. Contact with water or acids release phosphine gas, and can cause explosions. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides, chlorine monoxide, halogens, halogen acids, oxygen, sulfur
Waste DisposalDisposal of unused product must be undertaken by qualified personnel who are knowledgeable in all applicable regulations and follow all pertinent safety precautions including the use of appropriate protective equipment. For proper handling and disposal, always comply with federal, state, and local regulations
CALCIUM PHOSPHIDE Preparation Products And Raw materials
Raw materialsAluminum-->Argon-->Calcium phosphate-->Calcium
Tag:CALCIUM PHOSPHIDE(1305-99-3) Related Product Information
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