A system intermediate between a true solution and a suspension. A dispersion where the particle size is between 1 and 100 nm. Colloids have little or no tendency to dialyze and small or no freezing-point depression.
Hangzhou ZeErRui Chemical Co., Ltd. Hangzhou ZeErRui Chemical Co., Ltd. located in Lingang industrial areas, our plant covers an area of 6000 square me.. Tianjin YR ChemSpec Technology Co.,Ltd. YR Chemspec?is a qualified manufacturer and supplier which audited and approved by SGS and ISO,we are strictly foll..