Su B., Xing H., Ren Q. Solubilization of Oxymatrine in Water-in-Supercritical Carbon Dioxide Microemulsions

формат pdf
размер 103.13 КБ
добавлен 15 октября 2010 г.

Статья "Солюбилизация оксиматрина в микроэмульсиях вода/сверхкритический диоксид углерода" журнала Joual of Chemical & Engineering Data, 2008 год, #53 (8), страницы 1705-1707

The solubilization amount of oxymatrine in ammonium carboxylate perfluoropolyether (PFPE-NH4) water-in-supercritical carbon dioxide microemulsions with a water-to-surfactant molar ratio of (10.2, 14.8, and 21.0) was determined at temperatures of (308.15, 313.15, 318.15, 323.15, and 328.15) K and a density of 0.822 g ·mL-1 using a static apparatus with a sampling part. The determined solubilization amount of oxymatrine was 2 orders of magnitude higher than the solubility of oxymatrine in supercritical carbon dioxide and about 1/6 to 1/5 of the solubility of oxymatrine in bulk water. It was indicated that the solubilization amount of oxymatrine increased with an increase of the water-to-surfactant molar ratio and temperature in all experimental conditions.

Похожие разделы

Смотрите также

Anastas Paul T. (ed.) Green Solvents. Volume 4: Supercritical solvents

Справочник

формат pdf
размер 24.87 МБ
добавлен 24 мая 2011 г.

Wiley-VCH, 2010. - 475 p. Книга (на английском языке) является четвертым томом серии "Зеленые растворители" и посвящена свойствам веществ, находящихся в критическом и закритическом состоянии, а также особенностям химических реакций и процессов, протекающих в данных условиях. Подробно освещаются расчеты физических свойств, жидкофазные синтезы органических веществ и фотохимические реакции в закритических условиях, гетерогенный и ферментативный ката...

Cosgrove N. (ed.). Colloid Science. Principles, methods and applications

формат pdf
размер 6.37 МБ
добавлен 15 февраля 2011 г.

2nd ed. - Wiley, 2010. 399 pp. An Introduction to Colloids Charge in Colloidal Systems Stability of Charge-stabilised Colloids Surfactant Aggregation and Adsorption at Interfaces Microemulsions Emulsions Polymers and Polymer Solutions Polymers at Interfaces Effect of Polymers on Colloid Stability Wetting of Surfaces Aerosols Practical Rheology Scattering and Reflection Techniques Optical Manipulation Electron Microscopy Surface Forces

Holmberg K. Handbook of Applied Surface and Colloid Chemistry. Vol. 1

Справочник

формат pdf
размер 42.45 МБ
добавлен 29 января 2011 г.

Vol. 1 Wiley. 2002. 591 pp. SURFACE CHEMISTRY IN IMPORTANT TECHNOLOGIES Surface Chemistry in Food and Feed Surface Chemistry in Detergency Surface Chemistry in Agriculture Surface and Colloid Chemistry in Photographic Technology Surface Chemistry in Paints Surface Chemistry of Paper Surface Chemistry in the Polymerization of Emulsion Colloidal Processing of Ceramics Surface Chemistry in Dispersion, Flocculation and Flotation Surface Chemistry in...

Holmberg K., J?nsson B., et al., Surfactants and Polymers in Aqueous Solution

формат pdf
размер 5.78 МБ
добавлен 10 августа 2011 г.

2nd Edn. — John Wiley & Sons, 2002. — 562 pp. Many industrial formulations such as detergents, paints, foodstuff and cosmetics contain both surfactants and polymers and their interaction govern many of the properties. This book is unique in that it discusses the solution chemistry of both surfactants and polymers and also the interactions between the two. The book, which is based on successful courses given by the authors since 1992, is a re...

Kumar P., Mittal K.L. Handbook of Microemulsion Science and Technology

Справочник

формат djvu
размер 9.93 МБ
добавлен 25 декабря 2011 г.

Marcel Dekker, 1999. - 842 pages. Historical Perspective Structural aspects and characterization of microemulsions Reactions in microemulsions Applications of microemulsions Future prospects

McHardy J., Sawan S.P. (ed.) Supercritical fluid cleaning. Fundamentals, Technology and Applications

формат djvu
размер 1.96 МБ
добавлен 04 ноября 2010 г.

Westwood, New Jersey, U.S.A. : Noyes publications, 1998. – 290 p. The book is organized with topics progressing from the fundamental nature of the supercritical state, through process conditions and materials interactions, to economic considerations. Practical examples are included to show how the technology has been successfully applied. The first four chapters consider principles governing SCF processing, detailing issues such as solubility, de...

McHugh M.A., Krukonis V.J. Supercritical fluid extraction. Principles and Practice

формат djvu
размер 3.52 МБ
добавлен 04 ноября 2010 г.

2nd edition. - Butterworth-Heinemann, 1994. – 512 p. Introduction Historical Perspective Phase Diagrams for Supercritical Fluid-Solute Mixtures Experimental Techniques in High-Pressure Studies Thermodynamic Modeling of Supercritical Fluid-Solute Phase Behavior Process Operations Early Industrial Applications Supercritical Fluid Process Development Studies Polymers and Monomers Processing Processing Pharmaceuticals, Natural Products, Specia...

Pashley R.M., Karaman M.E. Applied Colloid and Surface Chemistry

формат pdf
размер 4.94 МБ
добавлен 15 февраля 2011 г.

Wiley, 2004, 190 pp. Introduction Surgace Tension and Wetting Thermodynamics of Adsorption Surfactants and Self-assembly Emulsions and Microemulsions Charged Colloids Van der Waals forces and Colloid Stability Bubble coalescence, Foams and Thin Surfactant Films Appendices

Rosen M.J. Surfactants and Interfacial Phenomena

формат pdf
размер 2.05 МБ
добавлен 28 января 2011 г.

Wiley-Interfacial 2004. - 444 p. Characteristic Features of Surfactants Adsorption of Surface-Active Agents at Interfaces: The Electrical Double Layer Micelle Formation by Surfactants Solubilization by Solutions of Surfactants: Micellar Catalysis Reduction of Surface and Interfacial Tension by Surfactants Wetting and Its Modification by Surfactants Foaming and Antifoaming by Aqueous Solutions of Surfactants Emulsification by Surfactants Dispersio...

Varshney M., Morey T.E., Shah D.O., Flint J.A., Moudgil B.M., Seubert C.N., Dennis D.M. Pluronic Microemulsions as Nanoreservoirs for Extraction of Bupivacaine from Normal Saline

формат pdf
размер 251.84 КБ
добавлен 15 октября 2010 г.

Статья "Микроэмульсии полоксамеров как наноконтейнеры для экстракции бупивакаина из физиологического раствора" журнала Journal of the American Chemical Society, 2004 год, #126 (16), страницы 5108-5112 Abstract: We hypothesized that custom-designed microemulsions would effectively scavenge compounds from bulk media. Pluronic-based oil-in-water microemulsions were synthesized that efficiently reduced the free concentration of the local anesthetic...