填料用氢氧化铝色度测定方法的研究

Method for determining chromaticity in aluminum hydroxide for filler

随着氧化铝品种的开发,特别是化学品氧化铝的发展,色度已经成为产品的重要质量指标,但Al2O3、A(lOH)3及其化学制品行业无统一的色度测定标准。本文采用美国Datacolor公司SF600PLUS-CT色度仪测定高白填料A(lOH)3粉体L*a*b*值。选择适宜的仪器条件和分析程序。试验证明,本方法操作简单,快速、准确、适合此类物质的测定。

The chromaticity becomes the important quality indexes along with the development of alumina, especially the chemicals alumina. But there is not a standard chromaticity determination standard for Al2O3 and Al （OH）3. The L＊a＊b value of Al （OH）3 powder was determined by SF600PLUS-CT chromatographic produced by Datacolor （U.S.）. The best conditions and programs were adopted. The results showed that the method is simple, rapid, accurately.