Blue silica gel, Blue silica gel DL
Blue silica gel including deep blue silica gel, light blue silica gel, blue gel indicator and chromotropic blue gel. Different type of blue gel has different colors, insoluble in water, and turning from blue to blue purple or red purple and finally to light red, can visually indicating the relative humidity of the given environments. It is widely used as silica gel drier for the packing of precision instruments, leathers, shoes, clothes, foodstuffs, medicines and household electric appliances,etc.
Blue silica gel DL-I,DL-II,DL-III is non-toxic and odorless. Compared with normal blue gel, it has the feature of quantitative change after adsorbing a certain amount of moisture, the color will continue changing untill reach the provision of water. It is widely used as humidity indicator and drier in judging if the adsorption & drying process is up to the requirements and to determine if the adsorbent or drier ceases to be effective.