Cationic Surfactants

Cationic Surfactants

Author: John Cross

Publisher: CRC Press

Published: 1994-03-30

Total Pages: 392

ISBN-13: 9780824791773

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This work focuses on the environmental availability and effects, toxicological properties and numerous applications of cationic surfactants, detaling the modern analytical processes by which this important class of compounds may be studied. It discusses the types of microorganisms that are susceptible or refractory to the actions of cationic agents.


Cationic Surfactants

Cationic Surfactants

Author: John Cross

Publisher: CRC Press

Published: 2019-05-28

Total Pages: 392

ISBN-13: 1000063623

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This work focuses on the environmental availability and effects, toxicological properties and numerous applications of cationic surfactants, detaling the modern analytical processes by which this important class of compounds may be studied. It discusses the types of microorganisms that are susceptible or refractory to the actions of cationic agents.


Cationic Surfactants

Cationic Surfactants

Author: D. Rubingh

Publisher: CRC Press

Published: 1990-10-23

Total Pages: 548

ISBN-13: 9780824783570

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Focusing on the solution physical chemistry and surface properties of cationic surfactants, three major sections examine the properties of cationic surfactants themselves both in solution and at interfaces, the interactions of cationic surfactants with other materials, and applications of cationic s


Cationic Surfactants

Cationic Surfactants

Author: James Richmond

Publisher: CRC Press

Published: 1990-08-22

Total Pages: 328

ISBN-13: 9780824783815

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Authors from Akzo, Sherex, and Ethyl chemical companies present a comprehensive review of cationic surfactants, emphasizing the organic chemistry aspects. They discuss the preparation, properties, availability, and commercial uses of a wide range of these materials, including aromatic and cyclic var


Cationic Surfactants

Cationic Surfactants

Author: James Richmond

Publisher: CRC Press

Published: 1990-08-22

Total Pages: 320

ISBN-13: 9780824783815

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Authors from Akzo, Sherex, and Ethyl chemical companies present a comprehensive review of cationic surfactants, emphasizing the organic chemistry aspects. They discuss the preparation, properties, availability, and commercial uses of a wide range of these materials, including aromatic and cyclic var


Physico-Chemical Properties of Selected Anionic, Cationic and Nonionic Surfactants

Physico-Chemical Properties of Selected Anionic, Cationic and Nonionic Surfactants

Author: N.M. van Os

Publisher: Elsevier

Published: 2012-12-02

Total Pages: 627

ISBN-13: 0444600280

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The number of physico-chemical investigations of surfactants in solution, whether aqueous or nonaqueous, has dramatically increased in recent years. However, literature reports on surfactants in solutions are scattered over a plethora of scientific journals and books which differ widely in scope and readership. Such data are often difficult to retrieve because there have been no systematic compilations, with the exception of those for CMCs and for micelle aggregation numbers. The present compilation meets that need by covering, as completely as possible, the physico-chemical properties of selected series of homologous surfactants. These surfactants are in most cases isomerically pure, are well-known, and have been used in numerous academic and industrial studies. The properties include aggregation number, cloud point, CMC, 13C-NMR, correlation length, counterion binding, density, enthalpy of micelle formation, entropy of micelle formation, Gibbs' free energy of micelle formation, head group area, 1H-NMR, hydration number, Krafft temperature, melting point, micelle radius, microscopic viscosity, miscibility curve, partial molar volume, phase inversion temperature, refractive index, self-diffusion coefficient, surface tension, and upper critical temperature. The book also contains two- and three-component phase diagrams of many nonionic surfactants. The solvent is water in most cases; however, some data refer to properties in D2O, electrolyte solutions, and nonaqueous solvents. The variables are temperature and concentration. Where possible, the method of measurement is given. Data on the purity of the compounds and the accuracy of the measurement methods are not included, as these can easily be found in the original sources, which mostly date from the period 1970-1991 and are given at the end of each chapter. The Index section contains a compound index, a property index, a symbol index and a cross index which facilitate easy access to the data. This valuable collection of data will be of great use to anyone involved in Colloid and Surface Science, academics as well as industrial workers, and will stimulate further work.


Surfactants in Cosmetics

Surfactants in Cosmetics

Author: Martin Rieger

Publisher: Routledge

Published: 2017-09-29

Total Pages: 658

ISBN-13: 1351412493

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""Second Edition provides a thorough, up-to-date treatment of the fundamental behavior of surface active agents in solutions, their interaction with biological structures from proteins and membranes to the stratum corneum and epidermis, and their performance in formulations such as shampoos, dentifrice, aerosols, and skin cleansers.


Specialist Surfactants

Specialist Surfactants

Author: I.D. Robb

Publisher: Springer Science & Business Media

Published: 1996-12-31

Total Pages: 296

ISBN-13: 9780751403404

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Surfactants are vital components in biological systems, are key ingredients in many formulated products and play an important role in many industrial processes. The property which makes surfactants so useful is their ability to stabilize complex colloidal and interfacial systems. It is not surprising therefore that many new surfactant materials are developed, many of which have novel properties. However because their potential is not fully appreciated they remain underutilized by industry. The main purpose of this book is to illustrate the utility of a range of novel surfactants, in particular those which have been found useful in specific areas and which seem to offer promise across a wider range of applications. The contributors are drawn from industry and academic research and provide a comprehensive account of the preparation, properties and applications of these specialist surfactants. Research chemists in industry and academia will find this book a concise and authoritative account of this important group of surfactants.


Biodegradability of Surfactants

Biodegradability of Surfactants

Author: D.R. Karsa

Publisher: Springer Science & Business Media

Published: 1994-12-31

Total Pages: 278

ISBN-13: 0751402060

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The awareness and development of 'biodegradable' surfactants pre-dates current pressures by the environmental movement by nearly three decades, wherein a responsible industry mutually agreed to replace 'hard', non-biodegradable com ponents of household detergents by 'soft', biodegradable alternatives, without course to legislation. The only requirement at that time was for surfactants used in detergents to exhibit a 'primary biodegradability' in excess of 80%; this referring to the disap pearance or removal from solution of the intact surface active material as de tected by specified analytical techniques. This proved useful, as observed environmental impacts of surfactants, e.g. visible foam on rivers, are associated with the intact molecule. Test methods for 'primary biodegradability' were eventually enshrined in EU legislation for nonionic surfactants (Directive 821242/EEC, amended 73/404IEEC) and for anionic surfactants (Directive 8212431EEC, amended 73/405IEEC). No approved test methods and resultant legislation have been developed for cationic and amphoteric surfactants to date. The environmental classification of chemical substances, which of course includes surfactants, and associated risk assessment utilises a second criterion 'ready biodegradability'. This may be assessed by a number of methods which monitor oxygen uptake (BOD), carbon dioxide production or removal of dis solved organic carbon (DOC). Some surfactants which comply with the above Detergents Directive are borderline when it comes to 'ready biodegradability'.


Wormlike Micelles

Wormlike Micelles

Author: Cecile A Dreiss

Publisher: Royal Society of Chemistry

Published: 2017-03-21

Total Pages: 428

ISBN-13: 178262516X

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Wormlike Micelles describes the latest developments in the field including new systems, characterization and applications.