2-methyl- and 2-hydroxymethyl-serine-n,n-diacetic acid and...

C - Chemistry – Metallurgy – 07 – C

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C07C 227/14 (2006.01) C07C 229/22 (2006.01) C07C 229/24 (2006.01) C11D 3/20 (2006.01) C11D 3/26 (2006.01) C11D 3/33 (2006.01) C11D 3/39 (2006.01)

Patent

CA 2013847

2-Methyl- and 2-hydroxymethyl-serine-N,N-diacetic acid and derivatives thereof of the general formula I (see fig.I) in which X denotes hydrogen, alkali metal or ammonium which may or may not be substituted by C1-C4-alkyl or C1-C4-hydroxyalkyl groups and Z denotes hydrogen or hydroxyl. The compounds I serve as complexing agents for heavy metal ions or alkaline earth metal ions and as bleach stabilizers or builders in detergents and cleaning formulations.

Acide 2-méthyl- et 2-hydroxyméthylsérine-N,N-diacétique et ses dérivés de formule générale I (fig. I), où X représente de l'hydrogène, un métal alcalin ou un ammonium, avec ou sans substitution par un alkyle C1-C4 ou un hydroxyalkyle C1-C4, Z représente de l'hydrogène ou un hydroxyle. Les composés I servent comme agents de complexation pour les ions de métaux lourds ou de métaux alcalino-terreux, et comme stabilisateurs de blanchiment ou adjuvants dans des détergents et mélanges pour le nettoyage.

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