Thermal behaviour of dicarboxylic acids. Determination of melting points by DTA

Suzuki, Yukihiko; Muraishi, Kazuo; Matsuki, Kenzo

doi:10.1016/0040-6031(92)87017-5

Cited by 15 publications

(3 citation statements)

References 34 publications

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“…Thermal analysis confirmed that both MAL and SA lost weight after melting, suggesting decomposition, and the boiling of MAL, and/or conversion of MAL into fumaric acid, as reported in the literature (34)(35)(36)(37). Since MAL and SA rapidly decomposed after the crystal melted, cocrystal preparation using a melting method as previously reported (38) would be difficult.…”

Section: Cocrystal Screening and Solid Analysissupporting

confidence: 80%

Dissolution Improvement and the Mechanism of the Improvement from Cocrystallization of Poorly Water-soluble Compounds

Shiraki¹,

Takata²,

Takano³

et al. 2008

Pharm Res

171

109

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Section: Cocrystal Screening and Solid Analysissupporting

confidence: 80%

Dissolution Improvement and the Mechanism of the Improvement from Cocrystallization of Poorly Water-soluble Compounds

Shiraki¹,

Takata²,

Takano³

et al. 2008

Pharm Res

171

109

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“…2 . A comparison of diffraction peaks of the obtained BOF-s were carried out with the main peaks of the solid FA and initial BBN-s. Three diffraction patterns can be attributed to FA [4] , BBN-I (PDF #70–1226), BBN-II [3] and the new compounds with the main d (Å): 10.47; 3.57; 3.47; 3.36; 2.98; 2.82; 1.99; 1.76. XRD patterns of the obtained powders contain broadened peaks of BOF with the one intensified peak at 10.47 Å.…”

Section: Resultsmentioning

confidence: 99%

Synthesis of bismuth (III) oxofumarate and its solubility in organic solvents

Luneva

Mishchenko

Yukhin

2020

Materials Today: Proceedings

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This paper present the synthesis of bismuth (III) oxofumarate (BiO) 2 C 4 H 2 O 4 by solution-solid reaction due to the interaction of basic bismuth nitrates [Bi 6 O 5 (OH) 3 ](NO 3 ) 5 ·3H 2 O and [Bi 6 O 4 (OH) 4 ](NO 3 ) 6 ·H 2 O with aqueous solutions of fumaric acid C 4 H 4 O 4 . Solubility of (BiO) 2 C 4 H 2 O 4 in various organic solvents has been investigated. The morphology and phase composition of the samples was established by X-ray diffraction, scanning electron microscopy, thermogravimetric and chemical analyzes.

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“…Recently Suzuki [16,17] published on the thermal behaviour of maleic acid and fumaric acid and concluded that the difference in the melting points (Tin) is due to symmetry effects. In fumaric acid there is less crowding and less van der Waals strain as the two larger substituents in this trans isomer are located further apart than in the cis isomer, resulting in a higher T m for the first.…”

Section: Remarkmentioning

confidence: 99%