Authors:
L. Zhou Chiba University Faculty of Pharmaceutical Sciences 1-33 Yayoicho, Inage-ku Chiba 263-8522 Japan 1-33 Yayoicho, Inage-ku Chiba 263-8522 Japan

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J. Sirithunyalug Chiang Mai University Faculty of Pharmacy Chiang Mai 50200 Thailand Chiang Mai 50200 Thailand

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E. Yonemochi Toho University School of Pharmaceutical Sciences 2-2-1 Miyama, Funabashi Chiba 274-8510 Japan 2-2-1 Miyama, Funabashi Chiba 274-8510 Japan

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T. Oguchi Chiba University Faculty of Pharmaceutical Sciences 1-33 Yayoicho, Inage-ku Chiba 263-8522 Japan 1-33 Yayoicho, Inage-ku Chiba 263-8522 Japan

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K. Yamamoto Chiba University Faculty of Pharmaceutical Sciences 1-33 Yayoicho, Inage-ku Chiba 263-8522 Japan 1-33 Yayoicho, Inage-ku Chiba 263-8522 Japan

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Abstract  

The interaction between erythritol and 4-hexylresorcinol during heating was investigated by thermal analysis, powder X-ray diffractometry and infrared spectroscopy. A phase diagram was constructed by measuring the thermal behaviour of various resolidified physical mixtures of erythritol and 4-hexylresorcinol. The phase diagram revealed complex formation between erythritol and 4-hexylresorcinol with incongruent melting at 84C; the stoichiometry was a molar raio of 1:2 erythritol:4-hexylresorcinol. The complex gave diffraction peaks at 2θ=5.6 and 11.2 in the X-ray powder diffraction pattern. In the infrared spectrum, a new peak due to the complex was observed at 3504 cm–1. The complex prepared by grinding and evaporation had the same molecular arrangement as the complex prepared by sealed heating.

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
1
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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