Xi:Irritant;15046-91-0Relevant articles and documents
Rechnitz, G. A.,Zamochnick, S. B.
, p. 479 - 483 (1965)
McMillan, J. A.
, p. 594 - 595 (1962)
Device and method for preparing high-valence silver nanometer material with proportions of Ag+2 and Ag+3 controllable
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Paragraph 0022, (2017/04/19)
The invention belongs to the technical field of nanometer materials and relates to a device and method for preparing a high-valence silver nanometer material with proportions of Ag+2 and Ag+3 controllable. The device comprises a reaction raw material storage part, a reaction occurrence part and a product collection part which are connected in sequence. A segmented oxidation method is adopted, so that part of Ag+2 is oxidized into Ag+3; the length of a distributor in the reaction occurrence part is controlled, reaction time is adjusted, and thus the proportions of Ag+2 and Ag+3 can be controlled; the production process is simple, and operation is convenient. The dimension of nanometer high-valence silver prepared through the method ranges from 50 nanometers to 300 nanometers, the proportions of Ag+2 and Ag+3 approximately range from 1.5: 1 to 2: 1, and sterilization efficiency of the nanometer silver is improved by 100-200 times or above.
Spectrophotometric studies of [bis(pyrazine)silver(II)-peroxodisulphate] and kinetics and mechanism of oxidation of water by it in aqueous perchloric acid
Shukla,Indrayan
, p. 53 - 56 (2007/10/03)
Pyrazine stabilises silver(II) through formation of complex, bis(pyrazine)silver(II)-peroxodisulphate in 4.0 M perchloric acid which has been studied spectrophotometrically at λmax 460 and 619 nm and the molar absorpuvities are found to be 2100 and 2242M-1 cm-1 respectively. Ag(pyz)22+ gradually oxidises water. The effect of [H+], [pyrazine], [AgII] and temperature on the rate constants have been determined. A mechanism has been proposed for the reduction of Ag(pyz)22+ to Ag+.
