Dichloromethyl chloroformate

Diakyl carbamyl chlorides Diakyl aluminum hydrides Diborane Dibromoketone Dichloromethyl chloroformate Diphosgene Fuming nitric acid Gngnard reagents Hydrides nonvolatile... 

Also reported as a mixture with Dichloromethyl chloroformate (C13-A018) Stannic chloride. 

C-Stoff Chloromethyl Chloroformate (70-90%) and Dichloromethyl Chloroformate (30-10%) Mixture Cl 3-A... 

The mixture of monochloromethyl chloroformate with dichloromethyl chloroformate, used in 1915 by the Germans under the name of K-Stoff," and later also by the Allies, especially the French, by whom it was called " Palite."... 

Dichloromethyl chloroformate reacts with cold potassium iodide, liberating iodine ... 

Ferric chloride and anhydrous aluminium chloride decompose dichloromethyl chloroformate slowly at ordinary temperatures and rapidly at 80° C., forming a mixture of carbon dioxide and chloroform ... 

Aniline in aqueous or benzene solution reacts with dichloromethyl chloroformate to give diphenylurea and formanilide according to the equation ... 

Dichloromethyl chloroformate is less irritant than the preceding compound, but more toxic. Its limit of insupportability is 75 cu. mm. per cu. m. (Flury). 

Identification of Dichloromethyl Chloroformate. On treating dichloromethyl chloroformate with water or an alkaline solution it decomposes according to the following equation ... 

Identification of Trichloromethyl Chloroformate. This substance may. be identified by its reaction with an aqueous solution of aniline (3 100). Like phosgene and dichloromethyl chloroformate, a white crystalline precipitate of diphenyl urea forms, which may be confirmed by microscopic examination (rhombic prisms) or by a determination of its melting point (236° C.). 

Determination of Dichloromethyl Chloroformate. The sample to be examined is treated with sodium hydroxide and the volume of carbon monoxide evolved is measured. 

I gramme-molecule of dichloromethyl chloroformate, the amount of the latter present in the sample may be calculated ... 

Determination of Trichloromethyl Chloroformate. The quantitative determination of trichloromethyl chloroformate may be carried out by the aniline method according to Pancenko. unless mono- or dichloromethyl chloroformate is present. These both react with aniline in the same way as the trichloro derivative (see p. no). 

Palite. Monochloromethyl chloroformate and dichloromethyl chloroformate. Also used, according to Beadnell (1943) and Sartori (1939), as an abbreviation for phenylcarbylamine chloride. 

War gas used alone and mixed with dichloromethyl chloroformate, known as Palite, K-stoff, C-stoff. Colourless liquid, bp 107°C. Irritant odour. Powerful lachrymator 2 mg/m3 effective, produces great eye pain according to Beadnell (1943). Systemic toxicity low. 

French term for monochloromethyl chlorofor-mate mixed 74 25 with stannic chloride or with dichloromethyl chloroformate (see K-stoff). 

K-Stoff was introduced by the Germans in June 1915 as a more lethal replacement for chlorine. A low-boiling liquid (boiling point 1°C), it was loaded into artillery shells, hence was more convenient to use in combat, and could be delivered independent of the prevailing wind direction. It was manufactured as a mixture of chloromethyl chloroformate and dichloromethyl chloroformate, variously reported to be 70/30 and 90/10, respectively. It is about twice as toxic as chlorine. K-Stoff was itself soon replaced by the more lethal phosgene and diphosgene. The latter are of comparable toxicities, about six times more toxic than chlorine, and soon became the most heavily used nonpersistent lethal agents of the war ... 

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