silica gel blue,white bead form,size 1--2mm,1--3mm,2--5mm supply ... .7631-86-9Color : white or blueSize : bead form or granular form, from 0.2--1.0mm,1--3mm,2--5mm ... or Spherical Sharp, After absorbing Moisture, it turns from blue to red, visually indicating the relative humidity of the ... given environments.5) DL Blue Silica Gel: Lumps or Spherical Sharp, used as humidity ...