A spectrophotometric method is used to determine the acidity constants of some derivatives of 9,10-anthraquinone in binary methanol-water mixtures at 25 °C. There is a linear inverse relationship between pKa of all acids and the mole fraction of methanol in the mixed solvent. The influence of substituents in the molecular structure on the ionization constants is discussed.  

Eutectic mixtures of urea and a range of quaternary ammonium salts are liquid at ambient temperatures and have interesting solvent properties.

1. The influence of D20 and organic solvents on the rate of oxidation of added substrates by heart muscle particles and tightly coupled rat liver mitochondria has been investigated. Solvents examined include glycerol, sucrose, dimethyl sulfoxide, dimethyl formamide, and ethylene glycol. Each of these solvents was found to induce a marked inhibition of respiratory chain activity. 2. The relative...

BACKGROUND This study evaluated the effect of the solvent on the extraction of antioxidant compounds from black mulberry (Morus nigra), blackberry (Rubus ulmifolius) and strawberry (Fragaria x ananassa). Different extracts of each berry were evaluated from the determination of total phenolic content, anthocyanin content and antioxidant capacity, and data were applied to the principal component ...

This study concerns a new antiretroviral drug named CRS 74, which has a limited bioavailability because of its low aqueous solubility and dissolution rate. To improve these properties, CRS 74 can be recrystallized by using Liquid Anti-Solvent (LAS) crystallization. Ethanol is chosen as the solvent under study for the molecule and water as the anti-solvent. Since solubility data is limited, it i...

Solvent-induced enantioselectivity reversal is a rarely reported phenomenon in porous homochiral materials. Similar behavior has been studied chiral high performance liquid chromatography, where minor modifications to the mobile phase can induce elution order of two enantiomers on stationary column. We report first instance solvent-induced metal organic framework. Further, we highlight complex ...