Weihai Silica Gel Drier Co,Ltd

Products

	Silica Gel for Column-layer Chromatography

Origin

China

Silica Gel for Column-layer Chromatography

Passed ISO9001:2000 certification

General Description

White grains of homogeneous size.

Chief ingredient is silicon dioxide.Of high purity, secure and sanitary.Can be used to separate and refine mixed components because different components have different absorption duration on this silica gel.

Use

For refinement of petrol products, removal of aromatic hydrocarbon material, seperation and refinement of traditional Chinese herbal medicine components, preparation of high purity substance,etc.

Technical Norms

ITEM	Specifications
	TypeI			TypeII
Type	ZCX-1	ZCX-2	ZCX-3	ZCX-1	ZCX-2	ZCX-3
Chlorides(C1),%≤	0.02
Iron(Fe)??/span>%≤	0.02
PH ??/span>100g/L water suspension???mL/g	6.0-7.0			6.0-8.0
Lead ??/span>Pb??/span>, %≤	0.001
arsenic??/span>As??/span>%≤	0.0003
Heavy metals??/span>by Pb??/span>, %≤	0.003
Loss on heating%≤	3.0			5.0
Specific surface m²/g	≥550	300-550	200-300	≥550	300-550		200-300
Pore volume ml/g	≤0.70	0.70-0.90	≥0.85	≤0.70	0.70-0.90		≥0.85
Granularity eligibility %≥	>150µ 75-150µ 50-75µ <50µ 80 80 60 60			>150µ 75-150µ 50-75µ <50µ 80 80 60 60
Granularity mm	To be decided upon buyer’s requirements