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Silica Gel for Column-layer Chromatography

Characteristics
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 absorption duration on this silica gel.

Use:
For refinement of petrol products, removal of aromatic hydrocarbon material, separation and refinement of traditional Chinese herbal medicine components, preparation of high purity substance, etc.
Technical Data:


ITEM

Index

Type I

Type II

Type

ZCX-1

ZCX-2

ZCX-3

ZCX-1

ZCX-2

ZCX-3

Chlorides(Cl), %≤

0.02

 

Iron(Fe), %≤

0.02

 

pH(100g/l water suspension)

6.0-7.0

6.0-8.0

Lead(Pb), %≤

0.001

 

Arsenic(As), %≤

0.0003

 

Heavy metals (by Pb), %≤

0.003

 

Loss on heating, %≤

3.0

5.0

Specific surface, m2/g

≥550

300-500

200-300

≥550

300-500

200-300

Pore volume, ml/g

≤0.70

0.70-0.90

≥0.85

≤0.70

0.70-0.90

≥0.85

Granularity eligibility, %≥

> 150μ75-150μ50-75μ< 50μ
80  80  60   60

> 150μ75-150μ50-75μ< 50μ 80  80  60   60

Granularity, mm 

To be decided upon buyers requirements

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