The Experts below are selected from a list of 252 Experts worldwide ranked by ideXlab platform
Liwen Zhao - One of the best experts on this subject based on the ideXlab platform.
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isobaric vapor liquid equilibrium for binary systems of Thioglycolic Acid with water butyl acetate butyl formate and isobutyl acetate at 101 3 kpa
Journal of Chemical & Engineering Data, 2017Co-Authors: Hong Li, Lianzheng Zhang, Liwen Zhao, Dongmei Xu, Chunlu LiAbstract:The isobaric vapor–liquid equilibrium (VLE) data for the systems (Thioglycolic Acid + water), (Thioglycolic Acid + butyl acetate), (Thioglycolic Acid + butyl formate), and (Thioglycolic Acid + isobutyl acetate) were measured at P = 101.3 kPa by using a vapor recirculating type (modified Rose) equilibrium still. The thermodynamic consistency test of the experimental data for the four binary systems were confirmed by the method of Van Ness. The experimental VLE data were correlated by the three activity coefficient models of Wilson, nonrandom two-liquid (NRTL), and universal quasi-chemical (UNIQUAC). The results show that all the calculated data by the Wilson, NRTL, and UNIQUAC models are in good agreement with the measured VLE data. Meanwhile, the binary interaction parameters of the three models for the binary systems were regressed.
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Isobaric Vapor–Liquid Equilibrium for Binary Systems of Thioglycolic Acid with Water, Butyl Acetate, Butyl Formate, and Isobutyl Acetate at 101.3 kPa
Journal of Chemical & Engineering Data, 2016Co-Authors: Jun Gao, Lianzheng Zhang, Liwen ZhaoAbstract:The isobaric vapor–liquid equilibrium (VLE) data for the systems (Thioglycolic Acid + water), (Thioglycolic Acid + butyl acetate), (Thioglycolic Acid + butyl formate), and (Thioglycolic Acid + isobutyl acetate) were measured at P = 101.3 kPa by using a vapor recirculating type (modified Rose) equilibrium still. The thermodynamic consistency test of the experimental data for the four binary systems were confirmed by the method of Van Ness. The experimental VLE data were correlated by the three activity coefficient models of Wilson, nonrandom two-liquid (NRTL), and universal quasi-chemical (UNIQUAC). The results show that all the calculated data by the Wilson, NRTL, and UNIQUAC models are in good agreement with the measured VLE data. Meanwhile, the binary interaction parameters of the three models for the binary systems were regressed.
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Isobaric Vapor–Liquid Equilibrium for Binary Systems of Thioglycolic Acid with Water, Butyl Acetate, Butyl Formate, and Isobutyl Acetate at 101.3 kPa
2016Co-Authors: Jun Gao, Lianzheng Zhang, Liwen ZhaoAbstract:The isobaric vapor–liquid equilibrium (VLE) data for the systems (Thioglycolic Acid + water), (Thioglycolic Acid + butyl acetate), (Thioglycolic Acid + butyl formate), and (Thioglycolic Acid + isobutyl acetate) were measured at P = 101.3 kPa by using a vapor recirculating type (modified Rose) equilibrium still. The thermodynamic consistency test of the experimental data for the four binary systems were confirmed by the method of Van Ness. The experimental VLE data were correlated by the three activity coefficient models of Wilson, nonrandom two-liquid (NRTL), and universal quasi-chemical (UNIQUAC). The results show that all the calculated data by the Wilson, NRTL, and UNIQUAC models are in good agreement with the measured VLE data. Meanwhile, the binary interaction parameters of the three models for the binary systems were regressed
Lianzheng Zhang - One of the best experts on this subject based on the ideXlab platform.
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isobaric vapor liquid equilibrium for binary systems of Thioglycolic Acid with water butyl acetate butyl formate and isobutyl acetate at 101 3 kpa
Journal of Chemical & Engineering Data, 2017Co-Authors: Hong Li, Lianzheng Zhang, Liwen Zhao, Dongmei Xu, Chunlu LiAbstract:The isobaric vapor–liquid equilibrium (VLE) data for the systems (Thioglycolic Acid + water), (Thioglycolic Acid + butyl acetate), (Thioglycolic Acid + butyl formate), and (Thioglycolic Acid + isobutyl acetate) were measured at P = 101.3 kPa by using a vapor recirculating type (modified Rose) equilibrium still. The thermodynamic consistency test of the experimental data for the four binary systems were confirmed by the method of Van Ness. The experimental VLE data were correlated by the three activity coefficient models of Wilson, nonrandom two-liquid (NRTL), and universal quasi-chemical (UNIQUAC). The results show that all the calculated data by the Wilson, NRTL, and UNIQUAC models are in good agreement with the measured VLE data. Meanwhile, the binary interaction parameters of the three models for the binary systems were regressed.
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Measurement and thermodynamic modelling of ternary liquid-liquid equilibrium for extraction of Thioglycolic Acid from aqueous solution with different solvents
The Journal of Chemical Thermodynamics, 2017Co-Authors: Jun Gao, Zhanglu Liu, Lianzheng Zhang, Di LiuAbstract:Abstract Liquid-liquid equilibrium (LLE) data for the ternary systems {water + Thioglycolic Acid + (butyl acetate, isobutyl acetate or isopropyl acetate)} were determined at 293.15 K and 101.3 kPa. The solubility values were obtained by using the titration method. Moreover, the Hand and Othmer-Tobias equations were applied to validate the reliability of the obtained LLE values, and the distribution coefficients and separation factors were calculated to evaluate the solvents performances to extract Thioglycolic Acid from aqueous solution. The results indicate that isobutyl acetate is the best among the organic solvents studied for the separation of Thioglycolic Acid from aqueous solution. The thermodynamic NRTL and UNIQUAC models were used to correlate the experimental LLE results for the systems studied, and the binary interaction parameter values of the two models were optimized from the LLE correlation.
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Isobaric Vapor–Liquid Equilibrium for Binary Systems of Thioglycolic Acid with Water, Butyl Acetate, Butyl Formate, and Isobutyl Acetate at 101.3 kPa
Journal of Chemical & Engineering Data, 2016Co-Authors: Jun Gao, Lianzheng Zhang, Liwen ZhaoAbstract:The isobaric vapor–liquid equilibrium (VLE) data for the systems (Thioglycolic Acid + water), (Thioglycolic Acid + butyl acetate), (Thioglycolic Acid + butyl formate), and (Thioglycolic Acid + isobutyl acetate) were measured at P = 101.3 kPa by using a vapor recirculating type (modified Rose) equilibrium still. The thermodynamic consistency test of the experimental data for the four binary systems were confirmed by the method of Van Ness. The experimental VLE data were correlated by the three activity coefficient models of Wilson, nonrandom two-liquid (NRTL), and universal quasi-chemical (UNIQUAC). The results show that all the calculated data by the Wilson, NRTL, and UNIQUAC models are in good agreement with the measured VLE data. Meanwhile, the binary interaction parameters of the three models for the binary systems were regressed.
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Isobaric Vapor–Liquid Equilibrium for Binary Systems of Thioglycolic Acid with Water, Butyl Acetate, Butyl Formate, and Isobutyl Acetate at 101.3 kPa
2016Co-Authors: Jun Gao, Lianzheng Zhang, Liwen ZhaoAbstract:The isobaric vapor–liquid equilibrium (VLE) data for the systems (Thioglycolic Acid + water), (Thioglycolic Acid + butyl acetate), (Thioglycolic Acid + butyl formate), and (Thioglycolic Acid + isobutyl acetate) were measured at P = 101.3 kPa by using a vapor recirculating type (modified Rose) equilibrium still. The thermodynamic consistency test of the experimental data for the four binary systems were confirmed by the method of Van Ness. The experimental VLE data were correlated by the three activity coefficient models of Wilson, nonrandom two-liquid (NRTL), and universal quasi-chemical (UNIQUAC). The results show that all the calculated data by the Wilson, NRTL, and UNIQUAC models are in good agreement with the measured VLE data. Meanwhile, the binary interaction parameters of the three models for the binary systems were regressed
Jun Gao - One of the best experts on this subject based on the ideXlab platform.
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Measurement and thermodynamic modelling of ternary liquid-liquid equilibrium for extraction of Thioglycolic Acid from aqueous solution with different solvents
The Journal of Chemical Thermodynamics, 2017Co-Authors: Jun Gao, Zhanglu Liu, Lianzheng Zhang, Di LiuAbstract:Abstract Liquid-liquid equilibrium (LLE) data for the ternary systems {water + Thioglycolic Acid + (butyl acetate, isobutyl acetate or isopropyl acetate)} were determined at 293.15 K and 101.3 kPa. The solubility values were obtained by using the titration method. Moreover, the Hand and Othmer-Tobias equations were applied to validate the reliability of the obtained LLE values, and the distribution coefficients and separation factors were calculated to evaluate the solvents performances to extract Thioglycolic Acid from aqueous solution. The results indicate that isobutyl acetate is the best among the organic solvents studied for the separation of Thioglycolic Acid from aqueous solution. The thermodynamic NRTL and UNIQUAC models were used to correlate the experimental LLE results for the systems studied, and the binary interaction parameter values of the two models were optimized from the LLE correlation.
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Isobaric Vapor–Liquid Equilibrium for Binary Systems of Thioglycolic Acid with Water, Butyl Acetate, Butyl Formate, and Isobutyl Acetate at 101.3 kPa
Journal of Chemical & Engineering Data, 2016Co-Authors: Jun Gao, Lianzheng Zhang, Liwen ZhaoAbstract:The isobaric vapor–liquid equilibrium (VLE) data for the systems (Thioglycolic Acid + water), (Thioglycolic Acid + butyl acetate), (Thioglycolic Acid + butyl formate), and (Thioglycolic Acid + isobutyl acetate) were measured at P = 101.3 kPa by using a vapor recirculating type (modified Rose) equilibrium still. The thermodynamic consistency test of the experimental data for the four binary systems were confirmed by the method of Van Ness. The experimental VLE data were correlated by the three activity coefficient models of Wilson, nonrandom two-liquid (NRTL), and universal quasi-chemical (UNIQUAC). The results show that all the calculated data by the Wilson, NRTL, and UNIQUAC models are in good agreement with the measured VLE data. Meanwhile, the binary interaction parameters of the three models for the binary systems were regressed.
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Isobaric Vapor–Liquid Equilibrium for Binary Systems of Thioglycolic Acid with Water, Butyl Acetate, Butyl Formate, and Isobutyl Acetate at 101.3 kPa
2016Co-Authors: Jun Gao, Lianzheng Zhang, Liwen ZhaoAbstract:The isobaric vapor–liquid equilibrium (VLE) data for the systems (Thioglycolic Acid + water), (Thioglycolic Acid + butyl acetate), (Thioglycolic Acid + butyl formate), and (Thioglycolic Acid + isobutyl acetate) were measured at P = 101.3 kPa by using a vapor recirculating type (modified Rose) equilibrium still. The thermodynamic consistency test of the experimental data for the four binary systems were confirmed by the method of Van Ness. The experimental VLE data were correlated by the three activity coefficient models of Wilson, nonrandom two-liquid (NRTL), and universal quasi-chemical (UNIQUAC). The results show that all the calculated data by the Wilson, NRTL, and UNIQUAC models are in good agreement with the measured VLE data. Meanwhile, the binary interaction parameters of the three models for the binary systems were regressed
Abd Elfattah Ali Harb - One of the best experts on this subject based on the ideXlab platform.
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Cinnamonitriles in heterocycles synthesis: Reaction of α,β-unsaturated nitriles with Thioglycolic Acid
Archives of Pharmacal Research, 1991Co-Authors: Abd Elfattah Ali HarbAbstract:7H-thiazolo-[3,2-a]-pyridines as potential antimicrobial agents were prepared by reaction of α,β-unsaturated nitriles and Thioglycolic Acid.
Greta R Patzke - One of the best experts on this subject based on the ideXlab platform.
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chitosan Thioglycolic Acid as a versatile antimicrobial agent
Biomacromolecules, 2013Co-Authors: Georg Geisberger, Emina Besic Gyenge, Doris Hinger, Andres Kach, Caroline Maake, Greta R PatzkeAbstract:As functionalized chitosans hold great potential for the development of effective and broad-spectrum antibiotics, representative chitosan derivatives were tested for antimicrobial activity in neutral media: trimethyl chitosan (TMC), carboxy-methyl chitosan (CMC), and chitosan-Thioglycolic Acid (TGA; medium molecular weight: MMW-TGA; low molecular weight: LMW-TGA). Colony forming assays indicated that LMW-TGA displayed superior antimicrobial activity over the other derivatives tested: a 30 min incubation killed 100% Streptococcus sobrinus (Gram-positive bacteria) and reduced colony counts by 99.99% in Neisseria subflava (Gram-negative bacteria) and 99.97% in Candida albicans (fungi). To elucidate LMW-TGA effects at the cellular level, microscopic studies were performed. Use of fluorescein isothiocyanate (FITC)-labeled chitosan derivates in confocal microscopy showed that LMW-TGA attaches to microbial cell walls, while transmission electron microscopy indicated that this derivative severely affects cell wal...
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chitosan Thioglycolic Acid as a versatile antimicrobial agent
Biomacromolecules, 2013Co-Authors: Georg Geisberger, Emina Besic Gyenge, Doris Hinger, Andres Kach, Caroline Maake, Greta R PatzkeAbstract:As functionalized chitosans hold great potential for the development of effective and broad-spectrum antibiotics, representative chitosan derivatives were tested for antimicrobial activity in neutral media: trimethyl chitosan (TMC), carboxy-methyl chitosan (CMC), and chitosan-Thioglycolic Acid (TGA; medium molecular weight: MMW-TGA; low molecular weight: LMW-TGA). Colony forming assays indicated that LMW-TGA displayed superior antimicrobial activity over the other derivatives tested: a 30 min incubation killed 100% Streptococcus sobrinus (Gram-positive bacteria) and reduced colony counts by 99.99% in Neisseria subflava (Gram-negative bacteria) and 99.97% in Candida albicans (fungi). To elucidate LMW-TGA effects at the cellular level, microscopic studies were performed. Use of fluorescein isothiocyanate (FITC)-labeled chitosan derivates in confocal microscopy showed that LMW-TGA attaches to microbial cell walls, while transmission electron microscopy indicated that this derivative severely affects cell wall integrity and intracellular ultrastructure in all species tested. We therefore propose LMW-TGA as a promising and effective broad-band antimicrobial compound.
