Zinc phosphide

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Chemical Identification | General Product Information | Physical & Safety Data

Chemical Identification

Common Name

Zinc phosphide

中文通用名

磷化锌

IUPAC

trizinc diphosphide

CAS

zinc phosphide (Zn₃P₂)

CAS No.

1314-84-7

Molecular Formula

P₂Zn₃

Molecular Structure

General Product Information

Category

Rodenticides > Inorganic rodenticides

Activity

Insecticide/rodenticide

Physical & Safety Data

Physical Properties

Molecular weight:258.1g/mol; Physical form: Amorphous grey-black powder, with a garlic-like odour. Density:4.55; Composition: Tech. grade is 80-95% pure. Melting point: 420℃ (when heated in the absence of oxygen); Vapour pressure: Negligible in the dry state; Solubility:Practically insoluble in water (decomposes slowly). Slightly soluble in carbon disulfide and benzene. Practically insoluble in alcohols.; Stability:Stable when dry, but decomposes slowly in moist air; it is decomposed violently by acids to produce phosphine, which is a potent mammalian poison, and impurities which render the gas spontaneously flammable.

Toxicology

Oral:Acute oral LD50 for rats 45.7, sheep 60-70 mg/kg (M. A. Nekrasova, Sb. Rab., Leningr. Vet. Inst., 1964, No. 25, 372). Percutaneous:Acute percutaneousLD50 for rabbits 2000-5000 mg/kg. Non-irritating to skin and eyes.

Environmental Profile

Ecotoxicology:
Birds:Acute oral LD50 for mallard ducks 37.5, bobwhite quail 13.5, pheasants 9 mg/kg (D.W. Hayne, Mich. Agric. Exp. Stn., Q. Bull., 1951, No. 33, 412); for fowls, the lethal dose is 7-17,Fish:Acute LC50 for bluegill sunfish 0.8, rainbow trout 0.5 mg/l.

Transport Information

Hazard Class:Ib(Highly hazardous)