Abstract
[79-37-8] C2Cl2O2 (MW 126.92) (versatile agent for preparation of carboxylic acid chlorides;1 phosphonic acid dichlorides;2 alkyl chlorides;3 β-chloro enones;4 acyl isocyanates5) Physical Data: mp −12 °C; bp 63–64 °C/763 mmHg; d 1.48 g cm−3; nD20 1.4305. Solubility: sol hexane, benzene, diethyl ether, halogenated solvents, e.g. dichloromethane and chloroform, acetonitrile. Form Supplied in: colorless, fuming liquid; widely available; 2M soln in dichloromethane. Handling, Storage, and Precautions: liquid and solution are toxic, corrosive, and severely irritating to the eyes, skin, and respiratory tract. Use in a fume hood and wear protective gloves, goggles, and clothing. Bottles should be stored in a cool, dry place and kept tightly sealed to preclude contact with moisture. Decomposes violently with water, giving toxic fumes of CO, CO2, HCl.
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