Chemical companies manufacture a wide variety of formulations of surfactants for industrial and domestic use. Detergents, paints, inks, adhesives, cosmetics, dyes, weedkillers, insecticides and ice cream are familiar examples. In addition, there are many formulations of surfactants used by manufacturing industry as essential processing aids; for examples, the paper industry uses defoamers, dispersing aids and release agents; the engineering industry uses anticorrosive treatments and metal-working lubricants. The widespread use of surfactants and their release into the environment has resumed in an upsurge of interest in the biodegradability of these compounds. This volume, written by a team of industrial and academic authors, provides an overview of the science and technology of the subject. It is directed at surfactant chemists, analytical chemists and environmental chemists in the industrial and academic sectors.
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It is particularly useful..It is well printed, with few typographical errors. - Chemistry and Industry
Introduction to surfactant biodegradation. What is biodegradation? Biodegradability testing. Testing strategy and legal requirements. Biodegradability of anionic surfactants. Biodegradabilty of cationic surfactants. Biodegradability of non-ionic surfactants. Biodegradability of amphoteric surfactants. Index.
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Da: Romtrade Corp., STERLING HEIGHTS, MI, U.S.A.
Condizione: New. This is a Brand-new US Edition. This Item may be shipped from US or any other country as we have multiple locations worldwide. Codice articolo ABBB-163487
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Da: Books Puddle, New York, NY, U.S.A.
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Da: moluna, Greven, Germania
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Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, Germania
Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -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'. 276 pp. Englisch. Codice articolo 9780751402063
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Da: Majestic Books, Hounslow, Regno Unito
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Da: Biblios, Frankfurt am main, HESSE, Germania
Condizione: Used. pp. 276. Codice articolo 18534635
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Da: preigu, Osnabrück, Germania
Buch. Condizione: Neu. Biodegradability of Surfactants | M. R. Porter (u. a.) | Buch | Einband - fest (Hardcover) | Englisch | 1994 | Springer Netherland | EAN 9780751402063 | Verantwortliche Person für die EU: Springer Netherlands, Haberstr. 7, 69126 Heidelberg, buchhandel-buch[at]springer[dot]com | Anbieter: preigu Print on Demand. Codice articolo 102556733
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