Iodoform combustion

The violent or explosive reactions which carbon tetrachloride, chloroform, etc., exhibit on direct local contact with gaseous fluorine [1], can be moderated by suitable dilution, catalysis and diffused contact [2], Combustion of perfluorocy-clobutane-fluorine mixtures was detonative between 9.04 and 57.9 vol% of the halocarbon [3], Iodoform reacts very violently with fluorine owing to its high iodine content [4], Explosive properties of mixtures with 1,2-dichlorotetrafluoroethane have been studied [5],... 

Combustible when exposed to heat or flame. Can react with oxidizing materials. Explosive reaction with acetic acid + acetic anhydride + ammonium nitrate + nitric acid, 1-bromopenta borane(9) (above 90°C), iodoform (at 178°C), iodine (at 138°C). Reaction with nitric acid + acetic anhydride forms the military explosives RDX and HMX. Reacts violently with Na202. When heated to decomposition it emits toxic fumes of formaldehyde and NOx. See also AMINES. 

AMINOFORM (100-97-0) Combustible solid (flash point 482°F/250°C). Incompatible with acids, l-bromopentaborane(9), organic anhydrides, isocyanates, vinyl acetate, acrylates, substituted allyls, alkylene oxides, epichlorohydrin, iodine, iodoform, ketones, aldehydes, alcohols, glycols, phenols, cresols, caprolactam solution, sodium peroxide, strong oxidizers. Attacks aluminum, copper, lead, tin, zinc, and their alloys, and some plastics, rubber, and coatings. 

EXPLOSION and FIRE CONCERNS not combustible NFPA rating (not rated) mercurous chloride is ineompatible with bromides, iodides, alkali chlorides, sulfates, sulfites, carbonates, hydroxides, ammonia, silver salts, eopper salts, hydrogen peroxide, iodine, and iodoform mercuric oxide reacts explosively with acetyl nitrate, chlorine and hydrocarbons, butadiene and ethanol and iodine (at 35°C), and hydrogen peroxide and traces of nitric acid forms heat or shock-sensitive explosive mixtures with metals and non-metals contact with acetylene, acetylene products, or ammonia gases may from solid products that are sensitive to shock and which can initiate fires of combustible materials decomposition emits highly toxic fumes of Hg use water spray, fog, or foam for firefighting purposes. 

Your friend of Question 9-6 stiU needs your help. A week later a low-melting solid, compound A, was isolated, which combustion analysis showed had composition C9H10O. The substance gave a precipitate when treated with 2,4-dinitrophenylhydrazine solution. Furthermore, when reacted with iodoform reagent, a yellow precipitate... 

Iodoform may be determined by the flask combustion technique (see p. 796). The method for iodine-containing substances should be followed using a sample weight of about 10 mg. 1 ml 0-02N sodium thiosulphate = 0-0004374 g CHI3. 

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