Silver chlorate oxidant

Impact sensitivities of mixtures of red phosphorus with various oxidants were determined in a direct drop-ball method, which indicated higher sensitivities than those determined with an indirect striker mechanism. Mixtures with silver chlorate were most sensitive, those with bromates, chlorates and chlorites were extremely sensitive, and mixtures with sodium peroxide and potassium superoxide were more sensitive than those with barium, calcium, magnesium, strontium or zinc peroxides. Mixtures with perchlorates or iodates had sensitivities comparable to those of unmixed explosives, such as lead azide, 3,5-dinitrobenzenediazonium-2-oxide etc. 

Oxidation of Divinylglycol with Silver Chlorate and Osmic Acid... Ill... 

An amount of 16 g. of the glycol (m. p. 18°) dissolved in 250 ml. of water was oxidized with 18 g. of silver chlorate and 0.3 g. of osmic acid. The reaction mixture yielded 3 g. of allitol and no D,L-mannitol. We may therefore assign the meso configuration to the divinylglycol melting at 18°, since on hydroxylation it yielded allitol, but not D,L-mannitol. 

Oxidation of Divinylglycol with Silver Chlorate and Osmic Acid. In a typical experiment 100 g. of divinylglycol, 118 g. of silver chlorate and 1 g. of osmic acid were dissolved in 6 liters of water. The reaction mixture was kept at room temperature for several days. It was apparently essential that the reaction be carried out rather slowly. 

Oxidation of l,2,5,6-tetraacetoxyhexene-3 led to the formation of dulcitol tetraacetate. In a typical experiment 22 g. of the tetraacetate was oxidized with 4.4 g. of silver chlorate and 0.1 g. of osmic acid and yielded a sirujj which did not crystallize. The sirup was acetylated again and yielded the corresponding hexitol hexaacetate. The crystals which deposited first were collected and recrystallized from methanol, in which they are difficultly soluble in the cold. The product melted at 166-166.5° and analyzed correctly for a hexitol hexaacetate. Now there was found in the collections of the Ecole Normale Sup rieure an old bottle containing dulcitol hexaacetate, m. p. 167-168°. A mixture of the new and the old hexaacetates was found to melt at 166.5-167.5° the identity of the two compounds was thus beyond doubt. 

Silver chlorate forms the triammine, [Ag(NH3)3]C103 silver carbonate the tetramminc, [Ag(NH3)2]2CO 3 and silver oxide itself forms diammino-silver oxide, Ag20.2NH3> and the hydroxide, [Ag(NIi3)2]OII.5 Diammino-silver hydroxide appears to be more strongly dissociated than barium hydroxide.6... 

Metal chlorates, above Oxygen, etc., below Potassium bromate Non-metals Silver(I) oxide Non-metals Sodium peroxide Non-metals... 

AgCl Silver chloride, 1 3 AgClOs Silver chlorate, 2 4 AgF Silver(I) fluoride, 4 136 AgF2 Silver (II) fluoride, 3 176 Agl Silver iodide, 2 6 AgO Silver (II) oxide, 4 12 Ag2CN2 Silver cyanamide, 1 98 Ag2P03F Silver monofluorophos-phate, 3 109... 

Osmium tetroxide is also a catalyst in the oxidation of the double bond by chlorates. Cis addition of hydroxyl groups takes place as is shown by the preparation of cis-l,2-cyclohexanediol from cyclohexene and the formation of the proper diastereoisomeric dihydroxy derivatives of maleic, fumaric, and 4-halocrotonic acids. Silver chlorate is preferred to potassium chlorate in the hydroxylation of crotonic acid. ... 

Sodium chlorate, NaC103 potassium chlorate, KCI03 silver chlorate, AgCIOj and barium chlorate, Ba(CIOj)2, oxidize organic compounds only in the presence of catalysts, usually osmium tetroxide [310, 714, 715, 716, 718] or vanadium pentoxide [716, 718]. Because such oxidations do not occur without catalysts, it is likely that the real oxidants are osmium tetroxide and vanadium pentoxide, respectively, and that the function of the chlorates is reoxidation. 

Potassium permanganate. Dimethyl sulfide-Chlorine. Dimethyl sulfoxide. Dimethyl sulfoxide-Chlorine. Dimethylsulf-oxide Sulfur trioxide. Dipyridine chro-mium(VI) oxide. Iodine. Iodine-Potassium iodide. Iodine tris(trifluoroacetate). Iodosobenzene diacetate. Isoamyl nitrite. Lead tetraacetate. Manganese dioxide. Mercuric acetate. Mercuric oxide. Osmium tetroxide—Potassium chlorate. Ozone. Periodic acid. Pertrifluoroacetic acid. Potassium ferrate. Potassium ferricyanide. Potassium nitrosodisulfonate. Ruthenium tetroxide. Selenium dioxide. Silver carbonate. Silver carbonate-Celite. Silver nitrate. Silver oxide. Silver(II) oxide. Sodium hypochlorite. Sulfur trioxide. Thalli-um(III) nitrate. Thallium sulfate. Thalli-um(III) trifluoroacetate. Triphenyl phosphite ozonide. Triphenylphosphine dibromide. Trityl fluoroborate. 

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