Research on effect of TAED on pearl bleaching was written by Luo, Jianqiu;Yang, Lei;Chen, Jin;Lao, Zan. And the article was included in Huagong Jishu Yu Kaifa in 2011.Category: amides-buliding-blocks This article mentions the following:
In order to speed up the process of pearl bleaching, a method that used Tetra Acetyl Ethylene Diamine(TAED) as the bleaching activator during the pearl bleaching was explored. The results of the study showed that TAED had a great effect on catalyzing pearl bleaching. It was due to the reaction between TAED and HOO– to generate the diacetyl ethylene diamine(DAED) and acetic root anion which had more strong blanching ability than H2O2. Besides, different concentrations of TAED had observation effects on surface condition of pearl. In the experiment, the researchers used many compounds, for example, N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide) (cas: 10543-57-4Category: amides-buliding-blocks).
N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide) (cas: 10543-57-4) belongs to amides. Amides include many other important biological compounds, as well as many drugs like paracetamol, penicillin and LSD. Low-molecular-weight amides, such as dimethylformamide, are common solvents. Ionic, or saltlike, amides are strongly alkaline compounds ordinarily made by treating ammonia, an amine, or a covalent amide with a reactive metal such as sodium.Category: amides-buliding-blocks
Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics