Trichloracetic acid decomposition

Trichloracetic Acid is completely decomposed at higher temperatures into gases Joist1 could detect hydrochloric acid, chlorine, carbon monoxide, and carbon dioxide, besides traces of phosgene. The decomposition takes place, perhaps with the aid of moisture, as shown in the equation ... 

The body shows decomposition if heated above 270° C. and burns in air with a reddish flame and the separation of lead oxide. It is moderately soluble in chloroform, benzene, or carbon bisulphide when hot, and difficultly soluble in alcohol, ether, ligroin, or acetic acid. If heated in a sealed tube with hydrochloric acid decomposition occurs, lead tetrachloride and benzene being produced. By the action of halogens or concentrated nitric acid two phenyl groups are split off, and a lead diphenyl dihalide or dinitrate formed. A similar action takes place with iodic acid, formic, acetic, trichloracetic, propionic, valeric, and p-nitrobenzoic acids. With metallic chlorides the following derivatives are formed arsenic trichloride — lead diphenyl dichloride and diphenyl arsenious chloride antimony trichloride — lead diphenyl dichloride and diphenylstibine chloride antimony penta-chloride — lead diphenyl dichloride and diphenylstibine trichloride bismuth tribromide —> lead diphenyl dichloride and diphenylchloro-bismuthine thallie chloride —> lead diphenyl dichloride and thallium diphenyl chloride tellurium tetrachloride —> lead diphenyl dichloride and tellurium diphenyl dichloride. 

Chloral hydrate- Chloral (V, is a white, crystalline solid fuses at 67 (134 .6 F.) boils at 98 (208 .4 F.), at which temperature it suffers partial decomposition into chloral and H,0 volatilizes slowly at ordiiiary temperatures is very soluble in H,0 neutral in reaction has an ethereu odor, and a sharp, pungent bMte. Conoenixated H,SO decomposes it with formation of cbloial and chloralide. HNO, converts it into trichloracetic acid. When pure it gives no precipitate with silver nitrate solution, and is not browned by contact with concentrated H,SO. ... 

No oxidation or reduction is involved here. In order to show the uncertainties with regard to some apparently simple reactions, the decomposition of trichloracetic acid (which may take place on heating an aqueous solution) may be shown ... 

Pantothenic acid, panthenol and panthenol ethyl ether are decomposed by heating the plate 30 min at 160° C. After spraying with ninhydrin reagent (No. 178A) and again heating briefly at this temperature, the / -alanine formed yields violet and the aminopropanol wine red. Decomposition is also quantitative by treatment with 10% trichloracetic acid... 

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