【摘要】 <正>PR是以有机物为基体复配而来在工业上颇有意义的有机溶胶,它对溶液PH值有较好的缓冲作用.但如溶液中含有少量Ca²⁺、Mg²⁺离子时,体系便有白色物质生成而呈混浊.经电泳测定,胶粒大小低于1μ,并带负电.其浊度随电解质含量增加而增强.更多还原

【Abstract】 According to the principle and results of spectrophotometric determination of sol turbidity, the increment of optical density AE could be used to describe the protective effect of sodium humate on sol PR, It is proved that sodium humate is a good sol protector,更多还原