Dissolution properties of oxymatrine in citric acid solution |
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Authors: | Z X Li X H Pu W W Zhao |
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Institution: | (1) Department of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji, 721013, Shaanxi, People’s Republic of China;(2) College of Science, Northwest A&F University, Yangling, 712100, Shaanxi, People’s Republic of China |
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Abstract: | In this article, the enthalpy of dissolution for oxymatrine in 0.15 M citric acid solution is measured using a RD496-2000
Calvet Microcalorimeter at 36.5 °C under atmospheric pressure. The differential enthalpy (Δ
dif
H
m) and molar enthalpy (Δ
sol
H
m) were determined for oxymatrine dissolution in 0.15 M citric acid solution. On the basis of these experimental data and calculated
results, the kinetic equation, half-life, Δ
sol
H
m, Δ
sol
G
m, and Δ
sol
S
m of the dissolution process were also obtained. |
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Keywords: | |
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