Abstract
Hydrogen phosphide or phosphine ( PH3), a colorless, toxic, inflammable gas with an odor like carbide, has been used for the fumigation of insect pests of stored grain for many years. The development of a tablet, and more recently a pellet, composed of aluminum phosphide and ammonium carbamate (Phostoxin®1) which decomposes upon exposure to the atmosphere and slowly liberates the gas, has practically eliminated the danger of spontaneous combustion.
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