Measurement and correlation of the solubilities of luteolin and rutin in five imidazole-based ionic liquids

Yang, Kang; Yi, Song; Ge, Li; Su, Jing; Wen, Yan-Xuan; Long, Yunfei

doi:10.1016/j.fluid.2013.01.026

Cited by 23 publications

(25 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The λh equation has only two adjustable parameters, λ and h, thus providing versatility in correlating the experimental values in many solvents. The equation can be described as follows [10,11]:…”

Section: Resultsmentioning

confidence: 99%

Solubility of three types of benzamide derivatives in toluene, ethyl acetate, acetone, chloroform, methanol, and water at temperatures ranging from 288.15 to 328.15K at atmospheric pressure

Chen

Nan

Yang

et al. 2015

Journal of Molecular Liquids

View full text Add to dashboard Cite

Section: Resultsmentioning

confidence: 99%

Solubility of three types of benzamide derivatives in toluene, ethyl acetate, acetone, chloroform, methanol, and water at temperatures ranging from 288.15 to 328.15K at atmospheric pressure

Chen

Nan

Yang

et al. 2015

Journal of Molecular Liquids

View full text Add to dashboard Cite

“…The λh equation, introduced by Buchowski et al, 43,44 is a semiempirical model, which was applied as follows:…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

Dissociation Constants and Solubilities of Dalbergin and Nordalbergin in Different Solvents

et al. 2015

View full text Add to dashboard Cite

The dissociation constants (pK a ) of dalbergin and nordalbergin were measured at 298.2 K using ultraviolet (UV) spectroscopy method. The solubilities of dalbergin and nordalbergin in water, methanol, propanone, ethyl ethanoate, trichloromethane, and hexane have been determined by the UV spectrophotometric method from 283.2 to 308.2 K at atmospheric pressure. The experimental solubility values were correlated with a modified Apelblat equation, λh model, and ideal model. The pK a value of dalbergin is 8.91 ± 0.12, and the pK a1 and pK a2 values of nordalbergin are 7.31 ± 0.29 and 9.79 ± 0.39, respectively. The solubilities of dalbergin and nordalbergin in six solvents increase with an increase in temperature. The solubility order of dalbergin in six pure solvents was trichloromethane > propanone > ethyl ethanoate > methanol > hexane > water, whereas that of nordalbergin was propanone > methanol > ethyl ethanoate > trichloromethane > water > hexane. A comparison of the solubility of dalbergin with that of nordalbergin shows that the 7-methoxyl moiety of dalbergin leads to a significantly higher solubility in trichloromethane and hexane, a little higher solubility in ethyl ethanoate, an approximately equal solubility in propanone, and a little lower solubility in methanol and water (exception 283.2 K). For dalbergin, the modified Apelblat equation shows the best correlation for all solvents, and for nordalbergin, correlation results by three models are similar.

show abstract

“…where N equals the number of experimental points, x c and x e represent the solubility of 2-cyanoguanidine calculated from equations (4), (8) and (9), and the experimental solubility value, respectively.…”

Section: Model and Mechanismmentioning

confidence: 99%

“…Crystallization, as an operation method of purification, has a feature of low energy consumption. In industry, methanol is usually used as the solvent in the purified process of industrial grade 2-cyanoguanidine by the method of recrystallization, but it has high toxic and volatilizes easily [7,8]. An appropriate solvent or co-solvent is important for recrystallization of industrial grade 2-cyanoguanidine [9].…”

Section: Introductionmentioning

confidence: 99%

Measurement, correlation of the solubility and solution thermodynamics of 2-cyanoguanidine in (methanol+water) binary solvent systems from T=(283.15 to 343.15)K

Zhang

Chen

Zhao

et al. 2015

The Journal of Chemical Thermodynamics

View full text Add to dashboard Cite

Measurement and correlation of the solubilities of luteolin and rutin in five imidazole-based ionic liquids

Cited by 23 publications

References 30 publications

Solubility of three types of benzamide derivatives in toluene, ethyl acetate, acetone, chloroform, methanol, and water at temperatures ranging from 288.15 to 328.15K at atmospheric pressure

Solubility of three types of benzamide derivatives in toluene, ethyl acetate, acetone, chloroform, methanol, and water at temperatures ranging from 288.15 to 328.15K at atmospheric pressure

Dissociation Constants and Solubilities of Dalbergin and Nordalbergin in Different Solvents

Measurement, correlation of the solubility and solution thermodynamics of 2-cyanoguanidine in (methanol+water) binary solvent systems from T=(283.15 to 343.15)K

Contact Info

Product

Resources

About