Zinc phosphides

Zinc phosphide can combust in contact with water probably because of the formation of phosphine. Finally, it reacts violently with perchloric acid. 

J. Corley, G. Mdller, and K. SamoU, Zinc Phosphide Magnitude of the Residue on Cucumber, unpubhshed Analytical Summary Report for lR-4 Study No. 04333, University of Idaho, Moscow, ID (1997). 

The deliberate poisoning of harmful birds leads to unexpected consequences. In three districts of the former GDR in 1964-65, com was sprayed with methyl parathion and grain with zinc phosphide to fight rooks. As was expected, a large number of birds died, but rooks made up only 3% of the total [32]. 

See Sulfuric acid, Organic materials, above Zinc phosphide... 

Contact of one drop of water with a zinc phosphide rodenticide preparation caused ignition. 

Phosphine is generated when phosphide salts (i.e., Aluminum phosphide Calcium phosphide Magnesium phosphide Magnesium aluminum phosphide Potassium phosphide Sodium phosphide Stannic phosphide Strontium phosphide Zinc phosphide) come into contact with water. 

Zinc phosphide — a rodenticide — is relatively toxic when compared to elemental zinc or zinc oxide most of the biocidal action is attributed to the phosphide fraction. Acute oral LD50s for zinc... 

Moran, S. 1991. Toxicity of sodium fluoroacetate and zinc phosphide wheat grain baits to Microtus guentheri and Meriones tristrami. Bull. OEPP/EPPO Bull. 21 73-80. 

Trimercuiy tetraphosphide, 4616 Tungsten carbide, 0563 Uranium carbide, 0562 Uranium dicarbide, 1028 Zinc phosphide, 4876 Zirconium dicarbide, 1029 METAL PNICTIDES... 

Zinc phosphide [1314-84-7] GaUus domestlcus LDso" 1.40 Shivanandappa et al., 1979... 

Shivanandappa, T., Ramesh, H.P., and Krishnakumari, M.K. Rodenticidal poisoning of non-target animals acute oral toxicity of zinc phosphide to poultry, Bull. Environ. Contam. Toxicol, 23(4/5) 452-455, 1979. 

These materials, as well as more recent poisons like zinc phosphide and fluoroacetic acid, work as acute rodenticides and can be effective when a rodent consumes a lethal quantity of poison in a single dose in its food or drink. Unfortunately, animals often consume less than a lethal dose, which produces side effects which the animals associate with the bait. The result is that they become "bait shy" and are likely to be wary of the same poison bait a second time. 

Iron(ll) sulfate Sodium phosphinate, 3998 Zinc phosphide, 3998... 

Rodenticides are a broad class of chemicals designed to kill mammals, particularly rats and mice. Compounds that inhibit blood clotting, anticoagulants, are commonly used to control rat populations. One of the first was warfarin, which is related to the plant-derived coumadin (from spoiled sweet clover). In the 1950s rats developed resistance to warfarin, which prompted the development of more potent anticoagulants. Other rodenticides include fluoroacetic acid and zinc phosphide (very toxic) and thiourea-based compounds. The primary alternative to using rodenticides is trapping. 

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