cover image: Journal of the Indian Chemical Society  August  1934

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20.500.12592/d03hbh

Journal of the Indian Chemical Society August 1934

1934

1909 95 1578) found that in the merithyl esters of the aliphatic dibasic acids there is a degrease of rotation in passing from the first to the second and after that an increase up to the fifth (adipio); whereas in the ease of the brucine salts the value goes on increasing up to the third and from. [...] The constacy of the coefficient of dispersive power was observed also by Rupe (Annalen 1915 409 327) who obtained ap iao =211 for methylenecamphors of the type = OMB 0 In order to determine the effect of concentration on the specific rotation and rotatory dispersion the rotation of carbonyl-biscaphorquinonehydrazone under various concentrations have been studied. [...] Finally with the adipio compound the curve again rises up the specific rotation assuming a value in the neighbourhood of those for the first two members of the series. [...] With the green light however the specific rotation rises steeply from carbo to oxalio and is practically constant for oxalic malonic and succinic compounds though the rest of the curve runs parallel to that for the yellow light. [...] The following modifications in the method however were. adopted with advantage : Tin and hydrochloric acid were used instead of stannous chloride and hydrochloric acid as it hastened the reaction and the solution of the tin double salt was concentrated before removing the tin by hydrogen sulphide thus avoiding the oxidation of the amine during concentration.
technology medicine science
Pages
93
Published in
India
SARF Document ID
sarf.120026
Segment Pages Author Actions
Frontmatter
i-iv J. C. Ghosh, A. C. Sircar view
Studies in Optical Rotation. Rotatory Powers of Acidyl-biscamphorquinonehydrazones and Camphoryltbiocarbamylbydraeides and Attempts to Prepare Compounds Possessing Abnormal Rotation
579-594 M. S. Kotnis, B. Sanjiva Rao, P. C. Guha view
Synthesis and Structure of Dipropionylantone and of Di-n-butyrylaaetone
595-602 S. S. Deshpande, Y. V. Dingankar, D. N. Kapil view
The Physico-chemical Characteristics of the Oxides of Nickel from the Magneto-chemical Standpoint
603-616 S. S. Bhatnagar, Gurbachan Singh Bal view
Photolysis of Amino Acids in Sunlight
617-622 G. Gopala Rao, N. R. Dhar view
Photolysis of Amides and Amines in Sunlight
623-628 G. Gopala Rao, K. Madhusudanan Pandalai view
Chemical Reactivity and Light Absorption. Part III
629-iii N. R. Dhar, P. K. Kar view
Action of Chlorine and Bromine on Coumarin-4- and Coumarin-8-acetic Acids: Coumarin-3- and -4-halogenoacetic Acids and 4-Halogenomethylcoumarins
635-650 B. B. Dey, K. Radhabai view
A Note on Powell and Whittaker’s Method for the Determination of Pentosans
651-657 T. B. Krishnan view
Backmatter
i-vii unknown view

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