Qingdao Chengyu Chemical Co.,Ltd.

 1.Description and uses
This product has a moisture-absorption function of stoma silica gel. Its characteristic is that it will turn to purple during the increase of moisture-absorption, and then to light red and rosiness, it can show the humidity of environment, and intuitively show whether it needs to change a new desiccant. The use of blue silica gel includes blue silica gel indicator and blue turn-colors silica gel.
2.Technic Index of Blue Turn-colors Silica Gel

ITEM		SPECIFICATION
		Blue Gel Indicator	Turn-colors Silica Gel
qualified ratio of size %≥		90	90
Absorption capacity %≥	RH=20%	8	——
	RH=35%	13	——
	RH=50%	20	20

3.Size
(1)Lumpy granules 6mm up, 2.8-8.0mm 1.4-4.0mm 0.5-2.0mm
(2)Spheric granules 1.0-2.0mm 1.0-3.0mm 2.0-5.0mm 4.0-8.0mm