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Silica Gel for Thin-layer Chromatography

This product is a white, high purity reagent silica gel with certain size distribution that is used for thin layer chromatography.
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description

Use


Extensively used for analysis and separation of various natural and synthetic substances. It is widely used for the qualitative and quantitative analysis of the main ingredients or small amount of impurities in medicines, pesticides, Chinese herbal medicines, organic chemical products, petrochemical products, cereals and foods, as well as for the purification and preparation of some substances.


Thin-layer Type H silica gel may also be used as the carrier of dry cleaning agents.



Technical Data

ITEM

H

HF254

Typical values

Superior
class

First
class

Superior
class

First
class

H

Calcined gypsum(CaSO4.1/2H2O),%

-

-

-

-

--

Chloride (by Cl),% ≤

0.02

0.02

0.02

0.02

0.015

Iron(Fe),% ≤

0.015

0.020

0.015

0.020

0.003

pH (100g/L aqueous suspension)

6.0-7.0

6.0-7.0

6.0-7.0

6.0-7.0

6.3

Sift remainder (W=38μm),% ≤

4.0

8.0

4.0

8.0

2.3

Activity (1)

Three colors separated


ITEM

G

GF254

Typical values

Superior
class

First
class

Superior
class

First
class

G

Calcined gypsum (CaSO4.1/2H2O),%

12.0-14.0

12.0-14.0

12.0-14.0

12.0-14.0

12.9

Chloride (by Cl),% ≤

0.02

0.02

0.02

0.02

0.017

Iron(Fe),% ≤

0.015

0.020

0.015

0.020

0.003

pH (100g/L aqueous suspension)

6.0-7.0

6.0-7.0

6.0-7.0

6.0-7.0

6.4

Sift remainder (W=38μm),% ≤

4.0

8.0

4.0

8.0

2.4

Activity (1)

Three colors separated


* The "three colors" shown in the table refer to BI-methyl yellow, sultan red and indigo. 
Packaging: 500 g net per plastic bottle.