Acute Vapor Toxicity of Phosphorus Oxychloride, Phosphorus Trichloride and Methyl Phosphonic Dichloride

Abstract

Abstract The acute vapor toxicities of POCl3, PCl3, and CH3POCl2 and of their decomposition and hydrolysis products were studied to provide information for industrial hygiene procedures. Also studied were the effects on toxicity when these phosphorus compound vapors were neutralized with NH3 in the air. The effects of NH3 were in proportion to the degree of hydrolysis of the compound (presumably neutralizing the HCl produced). These experiments found that the neutralization with NH3 caused abatement of sensory effects, but may even worsen the clinical state of those exposed.