No abstract available

[en] Highlights: • Errors are found in the published coefficients for modified Apelblat equation. • Larger difference is found between our back-calculated data and that given in published paper. • Correct parameter’s values for the modified Apelblat equation are presented. -- Abstract: Errors are discovered regarding the published equation coefficients of Fan and co-workers [J. Chem. Thermodynamics 58 (2013) 288–291] for mathematically describing the solubility behavior of evodiamine in neat solvents using the modified Apelblat equation. The back-calculated values using the published equation coefficients are not the mole fraction solubility as stated in the published paper. What’s more, the parameters in the modified Apelblat equation were re-analysed according to the experimental solubility data.

No abstract available

[en] Questions are raised regarding whether or not the curve-fit equation coefficients reported by He and cowokers for the Kamlet and Taft linear solvent energy relationship model are meaningful. One of the calculated coefficients suggests that the solubility of 2-nitro-3-methylbenzoic acid decreases with increasing hydrogen-bond acidity of the solvent. The Abraham general solvation parameter model is suggested as a better model for obtaining information regarding molecular interactions between 2-nitro-3-methylbenzoic acid and surrounding solvent molecules.

[en] Electron absorption and emission spectra have been obtained for ten aromatic derivatives of lithium, boron, aluminium and gallium in inert and electron-donor solvents at 295 and 77 deg K. The observed intensive long-wave bands, whose psrameters depend on a particular element, aromatic radical structure and solvent donor capacity, are associated with the electronic transitions in the aromatic system disturbed by an intra- and intermolecular charge transfer with participation of free p-orbitals of the element. A decrease in the total luminescent capacity of the examined molecules with the growth of atomic number of the element has been revealed, which can be accounted for by the heavy atom effect and a higher probability of various non-radiative processes, including molecular photodissociation along the C-M link

[en] The article is published in the original.

No abstract available

[en] Highlights: • Errors are discovered in the published equation coefficients for NRTL model. • Published equation coefficients fail to describe the reported mole fraction solubility. • RTTL equation coefficients were re-analyzed. -- Abstract: Errors were discovered regarding the published equation coefficients of Alevizou and co-workers [J. Chem. Thermodyn. 62 (2013) 69–78] for mathematically describing the solubility of p-coumaric and caffeic acid in ionic liquids and organic solvents using the NRTL model. The curve-fit coefficients fail to describe the reported solubility data in the authors' published paper. The equation parameters were re-analyzed based on the reported solubility data.

[en] The use of ionic liquids as reaction media can confer many advantages upon catalytic reactions over reactions in organic solvents. In ionic liquids, catalysts having polar or ionic character can easily be immobilized without additional structural modification and thus the ionic solutions containing the catalyst can easily be separated from the reagents and reaction products, and then, be reused. More interestingly, switching from an organic solvent to an ionic liquid often results in a significant improvement in catalytic performance (e.g., rate acceleration, (enantio)selectivity improvement and an increase in catalyst stability). In this review, some recent interesting results which can nicely demonstrate these positive 'ionic liquid effect' on catalysis are discussed

[en] This document is the final laboratory report for tank 241-S-106 push mode core segments collected between February 12, 1997 and March 21, 1997. The segments were subsampled and analyzed in accordance with the Tank Push Mode Core Sampling and Analysis Plan (TSAP), the Tank Safety Screening Data Quality Objective (Safety DQO), the Historical Model Evaluation Data Requirements (Historical DQO) and the Data Quality Objective to Support Resolution of the Organic Complexant Safety Issue (Organic DQO). The analytical results are included in Table 1. Six of the twenty-four subsamples submitted for the differential scanning calorimetry (DSC) analysis exceeded the notification limit of 480 Joules/g stated in the DQO. Appropriate notifications were made. Total Organic Carbon (TOC) analyses were performed on all samples that produced exotherms during the DSC analysis. All results were less than the notification limit of three weight percent TOC. No cyanide analysis was performed, per agreement with the Tank Safety Program. None of the samples submitted for Total Alpha Activity exceeded notification limits as stated in the TSAP. Statistical evaluation of results by calculating the 95% upper confidence limit is not performed by the 222-S Laboratory and is not considered in this report. No core composites were created because there was insufficient solid material from any of the three core sampling events to generate a composite that would be representative of the tank contents