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.