Product Name: Blue Silica Gel for Column Chromatography Model NO.: 2-4mm, 3-5mm Shape: Beads Drying Method: Static Drying Kind: Silica-Gel Desiccant Sorbent: Silica Gel Desiccant: Chemical Desiccant Size: 2-4mm, 3-5mm Certificate: ISO9001: 2000 Trademark: JINCHENG Transport Package: 25kgs/Plastic Bag,or 25kgs/Plastic Drum,Palletized Specification: 1-3mm, 2-4mm, 2-5mm, 4-8mm. Origin: China HS Code: 3824909990 Product Description Blue silica gel includes blue indicating silica gelcolor-changing silica gel and blue silica gel. Blue silica gel has the appearance of the blue or light blue glass-like particles, according to the shape of particles It can be divided into spherical ones and block ones. Meanwhile, It has a property of turning pink from blue after absorption.

Use
Mainly used for moisture absorption and rust proofing when instruments and equipment are placed in obturation conditions, at the same time, according to their own color turning red from blue after the moisture absorption it can indicates ambient humidity directly.
It being used with ordinary desiccant silica gel, we can get the desiccant moisture level and judge the relative ambient humidity.
Desiccant silica gel used for packaging, it is widely used in precise instruments, leather, shoes, clothing, food, medicine and household appliances, etc.

Size
1-3mm, 2-4mm, 2-5mm, 4-8mm.

Packing
25KG per compound bag

ITEM		Blue gel indicator	Discoloring silica gel	Blue silica gel	Typical values
	RH=20%	8.0min	----	----	8min
Adsorption	RH=35%	13.0min	----	----	13min
capacity %	RH=50%	20.0min	20.0min	18.0min	22min
	RH=90%	----	----	28.0min	32min
Rattler loss%		10.0max	10.0max	10.0max	1max
Qualified size ratio %		96min	90min	90min	95min
Loss on heating %		5.0max	5.0max	5.0max	2max
color	RH=20%	Blue or light blue	---	---	eligibility
	RH=35%	purple or purplish red	---	---	eligibility
	RH=90%	light red	Light red light	purple or light red	eligibility