High-boiling liquid pesticide

Synonyms isocyanic acid methyl ester, isocyanatomethane, MIC Formula CH3NCO MW 57.05 CAS [624-83-9] used in the manufacture of carbamate pesticides colorless liquid with an unpleasant odor boils at 39°C freezes at -80°C vapor pressure 400 torr at 20°C density 0.96 g/mL at 20°C vapor density 1.97 (air= 1) decomposes in water soluble in most organic solvents highly toxic and flammable. 

MW 290.19 CAS [107-49-3] an organophosphorus pesticide colorless liquid hygroscopic boiling point 124°C at 1 mm Hg vapor pressure 0.00047 torr at 20°C decomposes at 170 to 213°C density 1.185 g/ml at 20°C miscible with most organic solvents miscible with water but rapidly hydrolyzed highly toxic. 

Allyl alcohol is a clear liquid boiling at 96°C. It is highly toxic and hazardous to the environment. It requires special attention to handling procedures. It is synthesized by the hydrolysis of allyl chloride or isomerization of propylene oxide. It is used as a starting material in making various polymers, pharmaceuticals, pesticides, and other allyl compounds. 

During the night of December 2-3,1984, the worst industrial disaster in history occurred at Union Carbide s plant in Bhopal, Madhya Pradesh, India. Methyl isocyanate (MIC) liquid, an intermediate used in making Sevin, Union Carbide s name for the pesticide carbaryl, came into contact with water, boiled violently, and turned into MIC gas. Unchecked by various safety systems, tons of highly toxic MIC gas escaped from storage tank E610. A cloud of MIC gas descended upon shantytowns just outside the plant, as well as on Bhopal city. Estimates of the death toll from exposure to the gas, immediately or in the first 2 weeks, range from 2000 to 8000 or more. If those who died months or years later from MIC exposure are counted, the death toll rises to between 20,000 and 30,000. More than 500,000 people suffered injuries from exposure to the gas and its effects on the environment. ... 

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