2017
DOI: 10.1021/acs.jced.7b00518
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Determination and Correlation of Solubility of Quetiapine Fumarate in Nine Pure Solvents and Two Aqueous Binary Solvents

Abstract: A gravimetric method was used to determine the solubility of quetiapine fumarate (QF) in nine pure solvents and two aqueous binary solvents (water + methanol/ethanol) at different temperatures from 283.15 to 323.15 K. The solubility of QF increases with the increase of temperature in nine pure solvents, and it is in the order DMF > methanol > ethanol >1-butanol > isopropyl alcohol > (acetone > ethyl acetate > isobutyl alcohol) > water at low temperature, and in the order DMF > methanol > ethanol >1-butanol > i… Show more

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Cited by 25 publications
(15 citation statements)
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“…The crystal forms of MET·HCl were detected by the PXRD technique. We tested the remaining solid after shaking the crystal for 12 h in nine solvents such as water, methanol, ethanol, acetone, isopropanol, water + methanol, water + ethanol, water + acetone, and water + isopropanol. The experimental results are shown in Figure .…”
Section: Resultsmentioning
confidence: 99%
“…The crystal forms of MET·HCl were detected by the PXRD technique. We tested the remaining solid after shaking the crystal for 12 h in nine solvents such as water, methanol, ethanol, acetone, isopropanol, water + methanol, water + ethanol, water + acetone, and water + isopropanol. The experimental results are shown in Figure .…”
Section: Resultsmentioning
confidence: 99%
“…In binary mixed solvents, the activity coefficient γ i can be described as eqs – where i ≠ j , Δ g ij is the parameter that is related to the Gibbs energy of intermolecular interaction, τ ij is another parameter associated with the nonrandomness of the solution, and α ij is an adjustable parameter that varies between 0 and 1.…”
Section: Thermodynamic and Correlation Modelsmentioning
confidence: 99%
“…The modified Apelblat equation [23][24][25] is usually used to determine the correlation between solubility and temperature. It is deduced from the well-known Clausius-Clapeyron equation.…”
Section: Modified Apelblat Equationmentioning
confidence: 99%