July 19, 2011 | Contact Author | By: B. Grüning, PhD; D. Käseborn; and H.I. Leidreiter, PhD, Th. Goldschmidt AG
cocamidopropyl betaine | synthesis | analysis | purity
Abstract: This paper presents the methods for producing cocamidopropyl betaine (CAPB), an important secondary surfactant in cosmetic formulations, household cleaners, dishwashing agents and technical applications. With the widespread use of CAPB, more analytical methods to determine its contetns and byproducts are needed. The authors describe the current methods to determine CAPB purity and other characteristics.
There are many detergent and foaming surfactants available for toiletries on the markt. However, only a handful of products need to be considered to focus on teh raw materials that have a strong market. Of these, the most important are the anionic surfactants, such as lauryl sulfates and lauryl ether sulfates.
A range of secondary surfactants has been developed for use with these efficiant and cost-effective primary surfactants. In general, formulators use secondary surfactants to improbe the properties of the primary surfactants and to optimize product performance. The most important secondary surfactant is cocamidopropyl betaine.16, 17 Since its introduction into the market in the 1960s, CAPB has becoame essential in surface-active formulas.
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