Column Chromatography Silica Gel

Chromatography & Lab

Column Chromatography Silica Gel (XCL Series)

Description

Column chromatography silica gel is a white powder. Main component SiO2·nH2O. Insoluble in water, inorganic acid and other organic solvents; soluble in HF and concentrated caustic soda solution. It absorbs moisture in air. Due to differences in adsorption and retention time for different substances, it can separate and purify various substances.

Structure & key data: XCL-A / XCL-B / XCL-C grades · Industrial and reagent grades

Applications

Refining petroleum products to remove aromatic substances
Selective adsorption and separation of organic gases and liquids
Catalyst carrier and chromatographic support
Separation and purification of active ingredients in Chinese herbal medicine
Preparation of high-purity substances

Technical Specifications

Property	XCL-A	XCL-B	XCL-C
Pore diameter (Å)	20–40	50–80	80–100
Pore volume (ml/g)	0.35–0.5	0.5–0.75	0.8–1.0
Specific surface area (m²/g)	≥ 600	400–600	300–400
Loss on heating (%)	On agreement	On agreement	On agreement
Chlorides (reagent grade) (%)	≤ 0.02	≤ 0.02	≤ 0.02
Iron (reagent grade) (%)	≤ 0.02	≤ 0.02	≤ 0.02
Particle size (mesh)	On agreement	On agreement	On agreement

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Packaging

Composite bag, 20 kg. Other packaging available on request.

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Storage

Store in a dry, ventilated place. Do not store with volatile substances.

Thin Layer Chromatography Silica Gel

TLC Silica Gel · H / HF254 / G / GF254

Thin Layer Chromatography Silica Gel Plate

TLC Plate · GF254

Macroporous Chromatography Silica Gel

Reagent Grade

Column Chromatography Silica Gel