| 摘要 |
Disclosed are hydrates of tertiary alkanolamine salts of formula (I): wherein R is hydrogen or the CH2 CH2OH group, X is -HN+R1R2R3 wherein R1, R2 and R3 are selected from the group consisting of straight or branched C1-C6 alkyl groups, C3-C6 cycloalkyl groups, straight or branched C1-C6 hydroxyalkyl groups, and C3-C6 hydroxycycloalkyl groups, and wherein at least one of R1, R2 and R3 is a straight or branched C1-C6 hydroxyalkyl group, and the number of moles of hydration water n is an integer from 1 to 80. The compounds according to the invention, especially the aqueous solutions thereof, are useful as whitening agents. |
