cover image: Journal of the Indian Chemical Society  August  1935

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20.500.12592/z13755

Journal of the Indian Chemical Society August 1935

1935

The hydrolysis of the lead chromate so produced was shown not to be excessive by a determintion of the pH value of the solution by the Comparator-indicator method. [...] 1934 11 767) and the values of molecular rotations (M) were calculted by the formula D ÷ T47 m. 2 H20 -74 X m D H2Op.-147 where D2 denotes the rotation of the solution; Di the rotation of water; A the ratio of the number of molecules of water to one molcule of the solute; p the density of solution; WH20 the molecular weight of water ; We is the molecular weight of solute; trt the m [...] One more fact which is quite significant is that the molecular rotation value due to uranyl radical has nearly the same value in the case of the nitrate and the chlride but the case of the sulphate shows a much different rotation. [...] The practically constant boiling point (62°/21 mm.) of the starting material would lead one to the belief that it was homogenous but by the maintenance of a suitable reflux ratio and by the systematic addition of each fraction when nearly half the previous fraction had distilled over and by carrying out the distillation in an atmosphere of dry carbon dioxide to prevent the formation of oxidation [...] This appears to point to the conclusion that the various fractions are but mixtures in varying proportion of these two compunds and that the anomalous R. D. of the middle fractions is due to the superposition of the rotatory dispersions of these substances.
technology medicine science
Pages
75
Published in
India
SARF Document ID
sarf.120026
Segment Pages Author Actions
Frontmatter
i-iv J.C. Ghosh, A.C. Sircar view
Action of Hydrogen Sulphide on Insoluble Chromates Part I. Lead Chromate and Silver Chromate
505-513 H.B. Dunnicliff, Brahm Prabash view
Magneto-optical Rotation of Uranyl Salts
514-518 S.S. Bhatnagar, P.L. Kapur, N.R. Verma view
The Anomalous Rotatory Dispersion of l-B Pinene. Part I
518-526 R. Padmanabhan, S.K. Jatkar view
Studies in the Cotarnine Series. Part IV. 5-Bromonarcotine 5-Bromocotarnine 5-Bromohydrocotarnine and 5-Bromonarceine and their Derivatives
526-536 B.B. Dey, T.K. Srinivasan view
Synthesis of Coumarins from Phenols and β-Ketonic Esters. Part III. Use of Various Condensing Agents
536-539 Duhkhaharan Chakravarti view
Nitration. Part V. Nitration of Monohalogenated Derivatives of Xylenes
540-541 Phuldeo Varma, K.S. Raman view
The Chemistry of Jute-lignin. Part VIII. Methylation of Lignin
542-546 Pulin Sarkar view
The Chemistry Jute-lignin. Part IX. Acetylation of Lignin
547-551 Pulin Sarkar view
The Viscosity of Titanium Dioxide Sol in Presence of Electrolytes
552-559 S.M. Sarkar, Olive Joseph view
A Modified Photographic Method for Substances of Small Rotatory Dispersion
559-565 R. Padmanabhan view
Backmatter
i-vi unknown view

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