K Iodates

Assay. Using a sample of 0.50—0.60g in a sealed glass ampoule, det the content of UDMH. by titration with std 0.1M. K iodate soln [prepd by dissolving 21.402g of K io-date (dried at 180°C) in distilled water and diluting to 1000ml in a volumetric flask]. 

Detn of purity of NAGu by the modified Jamieson method using K iodate for titration... 

DeMent (Ref) proposed to use the following Co ion contg mixts as smoke-producing pyrotechnic compns a)Co stearate 2.0, K chlorate 10.0 to 12.0 Amm acid fluoride 4.0 to 8.0 parts. This compn, when ignited by a flame, produced a heavy, voluminous fine white smoke b)When using monochloroacetic acid in previous mixt, instead of fluoride, the color of smoke produced was blue-white c)Equal parts of Co chloride, K bromate, K bromide, sulfur, K chlorate K acid sulfate burned with the emission of a green to green-brown smoke d)Equal parts of Co nitrate, K bromate, K bromide, sulfur, K chlorate K acid sulfate burned with the emission of grn to gm-bm smoke e)A mixt of Co chloride 1.0, K chlorate 2.0,K iodate 1.0, K iodide 1.0 sulfur 1.5 parts burned with evolution of a heavy voluminous deep violet smoke Ref J.DeMent, USP 2995526 (1961), p8... 

Cuprous Acetate, Cu(C2H302) wh crysts, de-compg rapidly in air can be prepd by heating cupric acetate to ca 250° (Ref 1). Cuprous acetate was patented by DeMent (Ref 7) as an ingredient of the following smoke-producing compn cuprous acetate 1.5, K iodide 0.6, K iodate 0.6,... 

An aq. soln. of K-hexacyanoferrate(III) and Na-acetate added to a soln. of pyrocatechol and 4,5-dihydroxy-7-methoxycoumarin in acetone-water, and the product isolated after 90 min. wedelolactone. Y 69-85%. F. e. with K-iodate instead of K-hexacyanoferrate(III) s. H.-W. Wanzlick, R. Gritzky, and H. Heide-priem, B. 96, 305 (1963). 

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