2015
DOI: 10.1039/c4ce02070g
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On the concomitant crystallization of amino acid crystals upon dissolution of some amino acid salt crystals

Abstract: During our in situ microscopy experiments we found that dissolution of glutamic acid, aspartic acid and leucine chloride single crystals leads to the spontaneous formation of numerous glutamic acid, aspartic acid and leucine crystals respectively. This phenomenon was not encountered during dissolution of monosodium glutamate single crystals. The observations are interpreted on the basis of calculated phase diagrams of the amino acid/HCl (/NaOH) systems. It was shown that upon dissolving the halide salts one en… Show more

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Cited by 3 publications
(3 citation statements)
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“…2,3 The applied separation unit of fractional crystallization is still state-of-the-art. 4,5 This requires basic understanding of the melting temperatures as well as the solubility behavior to further develop and optimize the downstream process. 6 However, consistent melting temperatures are still not available for the amino acids.…”
Section: Introductionmentioning
confidence: 99%
“…2,3 The applied separation unit of fractional crystallization is still state-of-the-art. 4,5 This requires basic understanding of the melting temperatures as well as the solubility behavior to further develop and optimize the downstream process. 6 However, consistent melting temperatures are still not available for the amino acids.…”
Section: Introductionmentioning
confidence: 99%
“…The amino acid hydrochlorides were synthesized by adapting the protocol of van Enckevort . Briefly 1.05 equiv of hydrochloric acid was added to a suspension of the amino acid in water.…”
Section: Methodsmentioning
confidence: 99%
“…The amino acid hydrochlorides were synthesized by adapting the protocol of van Enckevort. 48 Briefly 1.05 equiv of hydrochloric acid was added to a suspension of the amino acid in water. The mixture was stirred and heated at 60 °C for 10 min, resulting in a clear solution.…”
Section: Synthesis 231 Synthesis Of Poly(2-isopropenyl-2-oxazoline) (...mentioning
confidence: 99%