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Lauryldimethylamine oxide (LDAO), also known as dodecyldimethylamine oxide (DDAO), is an amine oxide–based zwitterionic surfactant, with a C 12 (dodecyl) alkyl tail. It is one of the most frequently-used surfactants of this type. [4]
The molecule consists of a nitrogen atom with two methyl substituents and one hydrogen.Dimethylamine is a weak base and the pKa of the ammonium CH 3-NH + 2-CH 3 is 10.73, a value above methylamine (10.64) and trimethylamine (9.79).
It is a colourless liquid although commercial samples can appear yellow and exhibit an amine-like odour. [citation needed] DPTA is a widely applied ingredient in many products, such as in surfactants, antimicrobials, preservatives, emulsifiers, corrosion inhibitors, chilling liquids, antistatics (e.g., in hair products), and dispersing agents. [2]
Lauryl Dimethyl Amine Oxide Market Poised for Growth with Increasing Demand in Personal Care and Cleaning Products | FMI Study NEWARK, Del, Oct. 31, 2024 (GLOBE NEWSWIRE) -- The global lauryl dimethyl amine oxide market , valued at USD 500 million in 2023, is expected to grow at a robust CAGR of 5.5% through 2033, reaching USD 850 million by 2033.
Alkyl dimethyl amine oxide (chain lengths C10–C16) is the most commercially used amine oxide. [3] They are considered a high production volume class of compounds in more than one member country of the Organisation for Economic Co-operation and Development ( OECD ); with annual production over 26,000, 16,000 and 6,800 tonnes (28,700, 17,600 ...
The amine is basic and undergoes quaternization with alkyl halides (e.g. hexyl bromide) to give quaternary ammonium salts: [4] [C 6 H 5 CH 2 N(CH 3 ) 2 + RX → [C 6 H 5 CH 2 N(CH 3 ) 2 R] + X − Such salts are useful phase transfer catalysts .
Dimethylaminopropylamine (DMAPA) is a diamine used in the preparation of some surfactants, such as cocamidopropyl betaine which is an ingredient in many personal care products including soaps, shampoos, and cosmetics.
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