This paper is concerned with the modification study on red pigment of naphthol AS(808 Scarlet)by using mixed coupling technique.
本文采用混合偶合方法对808大红粉红色颜料进行改性研究。
Red mercuric sulfide, a bright scarlet powder derived from heating mercury with sulfur, used as a pigment.
红色硫化汞，通过将水银与硫磺加热而得到的一种明亮的深红色粉末，用作颜料。
Principles and methods on the extraction of red pigment from Redstring Scarlet Sage were studied and the stability of pigment was checked.
研究了一串红色素的提取原理和方法，并对该色素的稳定性进行了验证。
Principles and methods on the extraction of red pigment from Redstring Scarlet Sage were studied and the stability of pigment was checked.
研究了一串红色素的提取原理和方法，并对该色素的稳定性进行了验证。
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