Silica Gel Grade Chart & Application Guide

Silica Gel Grade Chart & Application Guide

Typical Chemical & Physical Properties

Grade	03	11	13	40	49	408	59
Type	RD	RD	RD	RD	RD	RD	ID
Special Characteristics			5% Blue Indicating Gel		Blue Indicating Gel		High Liquid Adsorption
Particle Size (US Standard Sieve)	On 8	30-200	30-200	6-14	6-18	12-24	on 8
Bulk Density (lb./Cu.Ft.)	45	46	46	45	45	45	25
Total Volatile % @ 1750°	6.5	6.5	6.5	6.5	7.0	6.0	5.5
Moisture @ 150°C						1.50
Surface Area (Sq Meters/Grams)	750	750	750	750	750	750	300
Pore Volume (cc/Gram)	.43	.43	.43	.43	.43	.43	1.10
Typical Equilibrium Adsorption (Wt. %) at 10% RH	7.7	7.0	6.9	7.2		7.5	2.0
20% RH	14.7	12.0	11.7	13.7	10.5	14.5	3.0
40% RH	27.4	24.5	23.0	26.5	21.5	26.4	5.0
60% RH	33.0	33.0	31.0	32.5		31.0	8.0
80% RH	35.3	36.0	33.5	35.3	31.0	35.0	17.0
Comments				Meets Mil-D 3716B Type II Grade H Spec.			>90 wt.% Adsorption @100% RH
Typical Use Code (see below)	A	B	C	D	E	F	G

Use Code	Grade	Application
A	03	Dehydration of natural gas and industrial gases
B	11	Miscellaneous dehydration application where fine particle size is preferred
C	13	Flower drying, miscellaneous dehydration where fine particle size and moisture indication is required
D	40	Liquid and gas dehydration, hydrocarbon recovery
E	49	Indicating – blue to pink; dehydration where moisture indication is required
F	408	Protective packaging and general desiccation applications
G	59	Nondecrepitating buffer gel to adsorb liquids in gas streams, fragrance carrying, color body removal