Coherent Identifier About this item: 20.500.12592/0wmr0p

Industrial and News Edition of the Journal of the Indian Chemical Society

1953

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Summary

The faster rate at the intermediate stages may be reasonably attributed to the higher temperature of reaction (300') employed after the first hour to facilitate the esterification by removing the water of condensation as fast as it is formed from the reaction medium. [...] 4 3 2 and 1 in alcohol (Table IV) the lowest solubility of about 6% in alcohol being reached with the acid value of about 6. This confirms that the acid value of the ester determines its solubility and a slight increase or decrease in the acid value in the range of 5-7 brings about a substantial change in solubility. [...] A similar variation in solubility of the ester with their acid values has been observed previously by Gardner."160 P. K. CHOUDHURY AND K. N. KHEMKA With petroleum ether the solubility increases with the decrease in acid value the maximum solubility of 92% being achieved by the products having the lowest acid value in the range of 5-7. [...] The decomposition in the presence of the clays is nearly 50% while that in the case of bauxite is 85% the two samples of bauxite yielding nearly the same results."164 MISS R. OSMANI AND D. S. DATAR TABLE I Decomposition of sodium sulphate at 800'. [...] The reaction is proportional to alumina when the alumina content of the mixture is less than that in the above ratio higher proportion of alumina retarding the process.

Title Pages Author/Editor
Frontmatter i-ii unknown

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Studies in Ester-Gum From Indian Rosin Part I. Solubility and Molecular Weight of Ester-Gum During Esterification of Rosin 153-161 Pijush Choudhury, Kashi Khemka

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Reactions of Sulphates at High Temperature Part I. Thermal Decomposition of the Sulphates of the Alkali Metals in Presence of Aluminium Oxide 162-166 Razia Osmani, D.S Datar

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Light Absorption and Approximate Indicator Constants of Extracts of Some Indian Flowers and Their Indicator Properties 167-171 Rani Misra, B.P Gvani

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The Component Fatty Acids of the Body Fat From He-and She-Buffalo 172-174 D.R. Dhingra, S.N. Kapoor, Ganesh Chandra, R.C Sharma

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Purification of Groundnut Oil Part IV. Chromatographic Separation and Estimation of Tocopherol in Arachis Oil 175-178 Manik Sen Gupta, A.K Ganguly

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Studies on Annona Souamosa (Sitaphal) Seed Part II. the Insecticidal Fatty Oil 179-184 N. Naidu, Mohan Naidu, Z.H Osmani, S.A Saletore

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Reaction Between Sodium Carbonate and Iron Pyrites Under Different Conditions 185-194 S.M. Hossain, M.H. Khundkar

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Horn Plastics Part I. Plasticisation and Properties 195-200 N.N Bandyopadhyay

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Studies on Ceramic Raw Materials Part Iv. A Comparative Study of the Reducing Power of Adsorbed Bases 201-206 H.N. Das Gupta, S.K Chatterjee

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Determination of Tetraethyl Lead 207-216 J.C Chaudhuri

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A Note on the Tannage With Chebulinic Acid 217-218 S.K Barat

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A Note on the Tannage With Fractionated Myrobalans 218-220 S.K. Barat

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A Note on Periodate Oxidation of Starches 221-222 M.C Patel

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Notes & News 223-235 unknown

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Backmatter i-ii unknown

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Tags

technology medicine science

Pages
88
SARF Document ID
sarf.120038

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