ZIRCONIUM SULPHITE.
نویسندگان
چکیده
منابع مشابه
Deresination Options in Sulphite Pulping
Three methods for improved deresination of sulphite pulps were evaluated, namely, alkaline washing, enzyme treatment, and pulp fractionation. Alkaline washing appears to come at a high cost, because caustic is expensive and affects cellulose chain length, as indicated by lower viscosity of the pulps. Thus this is not a viable option for pulps that are sensitive to changes in viscosity. Enzyme t...
متن کاملSulphite in Rat Liver Mitochondria
1. The mechanism of sulphite and sulphate permeation into rat liver mitochondria was investigated. 2. Extramitochondrial sulphite and sulphate elicit efflux of intramitochondrial phosphate, malate, succinate and malonate. The sulphate-dependent effluxes and the sulphite-dependent efflux of dicarboxylate anions are inhibited by butylmalonate, phenylsuccinate and mersalyl. Inhibition of the phosp...
متن کاملAdverse reactions to the sulphite additives
Sulphites are widely used as preservative and antioxidant additives in the food and pharmaceutical industries. Exposure to sulphites has been reported to induce a range of adverse clinical effects in sensitive individuals, ranging from dermatitis, urticaria, flushing, hypotension, abdominal pain and diarrhoea to life-threatening anaphylactic and asthmatic reactions. Exposure to the sulphites ar...
متن کاملBritain Kinetics of Thiamin Cleavage by Sulphite
Results are presented on the rate of thiamin cleavage by sulphite in aqueous solutions as affected by temperature (20-700), pH (2.5-7.0), and variation of the concentration of either thiamin (1-20,UM) or sulphite (10-5000,UM as sulphur dioxide). Plots ofthe logarithmn ofpercentage ofresidual thiamin against time were found to be linear and cleavage thus was first-order with respect to thiamin. ...
متن کاملUnderstanding Hydrogen in Zirconium
Selected examples of the Canadian contribution to the development of understanding of the behavior of hydrogen in zirconium alloys are reviewed. To solve the technical problems faced by the nuclear industry, it was necessary to have values for the solubility and diffusivity of hydrogen in the alloys, the diffusivity needed for the three gradients of concentration, temperature, and stress. With ...
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ژورنال
عنوان ژورنال: Journal of the American Chemical Society
سال: 1895
ISSN: 0002-7863,1520-5126
DOI: 10.1021/ja02161a003