Abstract
Solubility of 1-hydroxybenzotriazole in 16 neat solvents including methanol, ethanol, n-propanol, isopropanol, acetone, butanone, isoamyl alcohol, n-hexanol, n-heptanol, isooctyl alcohol, N,N-dimethylformamide (DMF), dimethyl sulfoxide (DMSO), ethyl acetate, acetonitrile, 1,4-dioxane, and toluene was measured using the method of isothermal saturation over a temperature range from (278.15 to 313.15) K under atmospheric pressure (101.1 kPa). The mole fraction solubility of 1-hydroxybenzotriazole in the selected solvents increased with an increase of temperature. They followed the order from high to low in studied neat solvents: DMF > DMSO > ethanol > n-propanol > isopropanol > methanol > butanone > acetone >1,4-dioxane > n-heptanol > n-hexanol > isoamyl alcohol > isooctyl alcohol > ethyl acetate > acetonitrile > toluene. The obtained solubility data of 1-hydroxybenzotriazole in the studied solvents were correlated with the λh equation, modified Apelblat equation, and NRTL and Wilson models. The largest valu...
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