chromeyellow

王朝百科·作者佚名  2010-04-07
窄屏简体版  字體: |||超大  

chrome yellow主要成分为铬酸铅的颜料,其化学组成为PbCrO4,含量约为90%~94%,外观为浅红黄色粉末,为单斜晶形,密度为5.1~6.0g/cm3,吸油量为13~27g/100g,抗色渗性极好,遮盖力居于浅铬黄和深铬黄之间,明度与浅铬黄相等,优于深铬黄,耐酸性与浅铬黄相等,优于深铬黄,耐碱性差,分散性好。

中铬黄是以硝酸盐如硝酸铅、铬酸盐如重铬酸钠为原料,严格控制各种反应条件形成稳定的单斜晶形中铬黄粒子,经过滤、干燥、粉碎而成。主要用于涂料,尤其是路标涂料、油墨和塑料等。Lead chrome yellow,the molecular formula is 25PbCrO4·PbO.The color range is from lemon yellow to orange yellow. It is usually classified 5 standard types as lead chrome yellow,light chrome yellow,medium chrome yellow,deep chrome yellow,chrome orange yellow.The pigments are gloss,bright color shade and excellent hiding power,mainly used for producing coating,paints,inks, plastic, rubber,cultural&educational articles etc.

 
 
 
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