Polymorphic transition in succinic acid crystals
نویسندگان
چکیده
منابع مشابه
(E)-2-(Cyclohexylmethylene)succinic acid
The title compound, C(11)H(16)O(4), crystallizes with three molecules in the asymmetric unit. The cyclo-hexane ring adopts a chair conformation. Inter-molecular O-H⋯O hydrogen bonds are observed and these help to establish the crystal packing.
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High cell densities were obtained by separating the cells with an external hollow fibre filter. Extreme product inhibition at high succinate titres resulted in cell death and subsequent lysis. Accordingly, the highest succinate titre obtained during continuous fermentation was 25 g.L at a dilution rate of 0.05 h. The highest volumetric productivity of 3 g.L.h and the highest succinate yield (0....
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Koranyi and Szent-Gyorgyi have reported (1, 2) that relatively small doses of succinic acid would reduce or abolish the ketosis in diabetes. We have been unable to demonstrate this action of succinic acid. In Table I are presented three typical examples of the result of administering succinic acid to diabetic patients. All of these patients had been on their regime for some time and their diets...
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In the title compound, 2C(4)H(7)N(2) (+)·C(4)H(4)O(4) (2-)·C(4)H(6)O(4), the asymmetric unit consists of two 4-methyl-imidazolium cations, one succinate dianion and one netrual succinic acid mol-ecule and within the latter components, the C-O, C=O and C O bonds are clearly evidenced from their relative distances. In the crystal structure, the individual components are linked by inter-molecular ...
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Succinic acid produced by various microorganisms can be used as a precursor of many industrially important chemicals in food, chemical and pharmaceutical industries. The assessment of raw material cost and the estimation of the potential market size clearly indicate that the current petroleum-based succinic acid process will be replaced by the fermentative succinic acid production system in the...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section A Foundations of Crystallography
سال: 1981
ISSN: 0108-7673
DOI: 10.1107/s0108767381096219