Heat cadmium compounds

Main group tetrafluoroterephthalates lose both carboxyl groups. Mercury and cadmium tetrafluoroterephthalates when heated in vacuo gave polymeric tetrafluorophenylenemercury and -cadmium compounds [Eq. (92), M = Hg or Cd] (103). The same organomercurial and mercury... 

Cadmium bromide is prepared by heating cadmium with bromine vapor. Also the compound can be prepared by the treatment of dry cadmium acetate with glacial acetic acid and acetyl bromide. Alternatively, it may be obtained by dissolving cadmium or cadmium oxide in hydrobromic acid and evaporating the solution to dryness under hehum in an inert atmosphere. 

Also, the compound can be made by heating cadmium with iodine ... 

Milled rigid sheets of poly (vinyl chloride) on heating at 185°C. lose weight at a rate which increases with time. By polymer fractionation procedures, it was shown the rate of hydrogen chloride loss increases as the content of tetrahydro-furan-insoluble resin increases. The insoluble resin content accumulates at a rate which depends, in part, on the additive present. This insolubilization reaction is catalyzed by cadmium compounds. The increased dehydrochlorination rate of the insoluble crosslinked resins may result from the susceptibility of the crosslinked structures to oxidation and from the subsequent thermal degradation of the oxidation products. The effects of various common additives on the rates of insolubilization and weight loss are described. 

Dry tests a. Blowpipe test All cadmium compounds when heated with alkali carbonate on charcoal give a brown incrustation of cadmium oxide CdO. 

SAFETY PROFILE Confirmed human carcinogen. A poison. When heated to decomposidon it emits toxic fumes of NH3, NOx, and Cr. See also CADMIUM COMPOUNDS. 

SAFETY PROFILE Confirmed human carcinogen with experimental tumorigenic data. Mutation data reported. When heated to decomposition it emits very toxic fumes of NOx and SOx. See also CADMIUM COMPOUNDS and CARBAMATES. 

NIOSH PEL (Cadmium, dust and fume) Reduce to lowest feasible level SAFETY PROFILE Confirmed human carcinogen. Moderately toxic to humans by inhalation. Human pulmonary system effects by inhalation, including coughing, difficult breathing, and cyanosis. A strong irritant via inhalation. When heated to decomposition it emits toxic fumes of Cd. See also CADMIUM OXIDE and CADMIUM COMPOUNDS. 

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