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The Hydration Of Normal Sodium Pyrophosphate To Orthophosphate In Varying Concentrations Of Hydrogen Ion At Forty-Five Degrees Centigrade (1922) - Couverture souple
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Synopsis
""The Hydration Of Normal Sodium Pyrophosphate To Orthophosphate In Varying Concentrations Of Hydrogen Ion At Forty-Five Degrees Centigrade"" is a scientific research paper written by Waldemar C. Hansen in 1922. The paper focuses on the chemical reaction of normal sodium pyrophosphate with water to form orthophosphate in different concentrations of hydrogen ion at a temperature of 45 degrees Celsius. The study explores the effects of pH levels on the reaction and provides detailed experimental data and observations. The paper is aimed at chemists and researchers interested in the hydration of pyrophosphate and its applications in various fields.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.
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Présentation de l'éditeur
The Hydration of Normal Sodium Pyrophosphate to Orthophosphate in Varying Concentrations of Hydrogen I on at 45 Centigrade. Since the work of Graham1 on the phosphoric acids the problem of the hydration of pyrophosphoric acid has been of interest. A part of the interest was due to the difference of opinion among chemists as to whether the hydration of metaphosphoric acid was direct to orthophosphoric acid or whether pyrophosphoric acid was formed as an intermediate product1 23 45 67. Beans and Kiehl8 showed that pyrophosphate is formed as an intermediate product in the hydration of sodium monometaphosphate to orthophosphate. Therefore to understand more fully the hydration of sodium monometaphosphate to orthophosphate it seems advisable to study the hydration of a pyrophosphate to orthophosphate under the same conditions. One difficulty encountered by previous workers on this problem was due to the lack of a suitable method for the determination of the amounts of the different phosphates present when present together. In order to study the reaction it is necessary to have a method of determining the amounts of each of the phosphates present at any given time. The first to study this problem were Andre and Berthelot5. They used a method of acidimetry to determine the amounts of each of the acids present at any definite time. They discarded this method and attempted5 to develop a gravimetric separation. In this separation they precipitated a magnesium ammonium pyrophosphate of indefinite composition by heating the solution to be analyzed, acidified with acetic acid, for three or four hours on a boiling water bath. Since temperature9 and hydrogen ion 59 both have a marked effect on the rate of hydration this method could not be applicable for a quantitative study of this hydration. No one attempted a further study of-this problem until 1909 when A bbott9 studie
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