Cupric bromate

Copper(ll) Bromote. See Cupric Bromate under Bromates in Vol 2 p B303-R and Gmelin, Syst Nr 60, TIB, Lfg 1(1958), 387... 

Cupric bromate, Cu(Br03)2.—Slow concentration of a solution of cupric carbonate in bromic acid yields the hexahydrate,15 with density 2-583.18... 

A typical polarographic recording is shown in Fig. 2.1 curve (a) is the po-larogram obtained for chlorinated seawater analysed immediately after chlorination. Identical traces were observed for non-chlorinated seawater and for chlorinated seawater kept in the dark for periods up to 24 h at temperatures up to 40 °C, which indicates a lack of bromate formation under these conditions (BrC>3 < 10 7 M, less than 0.5% conversion of chlorine). Addition of copper sulfate to give a cupric ion concentration in the seawater of 100 parts per billion did not induce measurable bromate production in the dark. Curve (b) was obtained from a chlorinated (4.9 mg/1) seawater solution that was exposed to full sunlight for 70 min. Curve (c), which is offset by 0.4 pA with respect to curves (a) and (b), shows the presence of 1.0 x 10 5 M sodium bromate in seawater. 

Hydrofluoric acid like water is an associated liquid, and even the gas, as we shall soon see, is associated. It has the power of uniting with fluorides. It also seems to be an ionizing solvent for a soln. of potassium fluoride in liquid hydrogen fluoride is an excellent conductor it also possesses marked solvent powers. According to E. C. Franklin,7 the liquid readily dissolves potassium fluoride, ehloride, and sulphate sodium fluoride, bromide, nitrate, chlorate, and bromate acetamide and urea. The solvent action is not so marked with barium fluoride, cupric chloride, and silver cyanide while calcium and lead fluorides copper sulphate and nitrate ferric chloride, mercuric oxide, and magnesium metal, are virtually insoluble in this menstruum. Glass also is not affected by the liquid if moisture be absent. The liquid scarcely acts on most of the metals or non-metals at ordinary temp., though it does act on the alkali metals at ordinary temp., much the same as does water, with the simultaneous production of flame. 

Amines, Complexes. A number of amine complexes with cupric chlorates, perchlorates and bromates were examined before WWII in France flnjj described mr... 

K bromate 0,7, K (or Na) chlorate 0.5 to l.O sulfur (or charcoal) 0.5 to 0.8 part. Deflagration of this compn produced abundant violet-grey smoke-Cupric Acetate, Cu(CgH302)2 H O grn-blue pdr decompg beginning at 240° can be prepd by the action of AcOH on CuO or by other methods (Ref. 2). The cupric salt can serve as a basic material in the prepn of Cu(II) aceto-arsenite, an ingredient of some pyrotechnic compns. The so-called Ruggieri s Russian Fire compn contained Cu acetate 4, Cu sulfate 2 ... 

A very suitable oxidant for the conversion of acyloins into a-diketones is ammonium nitrate in the presence of catalytic amounts of cupric acetate. This reagent converts benzoin into benzil in 90% yield [476], The same result is obtained with bismuth sesquioxide 481] and sodium bromate 740 (equation 450). On the other hand, ceric ammonium nitrate does not give benzil but cleaves the bond between the alcoholic and the keto groups and cleaves benzoin into benzaldehyde and benzoic acid [425]. 

Copper Fluoride Cupric Fluoride Potassium Fluoride Bromic Acid Sodium Bromate Calcium Bromide... 

Other important oxidizing agents used are azodicarbonamide and cupric sulfate (Stauffer 1990). Azodicarbonamide is used instead of potassium bromate and supplemented in baking flours by millers (Chapter 7). 

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