摘要
本文以盐酸羟胺作还原剂,研究了三价铬与二甲酚橙的显色反应,结果发现Cr3+在0～80滋g/50ml范围内,其吸光度与Cr3+含量成正比相关,用于无钴黑色陶瓷颜料中铬含量的测定,作出了回归方程,且进行了显著性检验,获得了理想的结果。
The paper designs chromogenic reaction about xylenol orange and Cr 3+ with hydroxylamine hydrochloride as reductant.Result shows absorbance is positively correlated with Cr 3+ concentration with in the range of0to80ug/50ml.Data above are used to analyze chrome in cobalt-tree black pigment of ceramic so that a regression equation is set up and satisfactory results can be got through significanae test.
出处
《中国陶瓷》
CAS
CSCD
2003年第4期69-71,共3页
China Ceramics
关键词
无钴黑色料
铬
测定方法
cobalt-free black pigment
chrome
determining of method
