Aluminum Oxide Chromatography Description

Aluminium Oxide for Chromatography is a white to off white, fine-grained powder, highly porous form of aluminum oxide. Its surface is more polar than that of silica gel and reflecting the amphitrical nature of aluminium, has both acidic and basic characteristics. The chromatographic characteristics are determined by its specific (internal) surface area measured by the BET Method, its mean pore diameter, and its pore volume, the latter two being in relation to the specific surface area.

Sorbead India assures to supply the highest quality chromatography sorbents, with controlled physical characteristics for reproducible chromatographic performance.

Technical Parameter:

Grades	Alumina- Basic	Alumina-Neutral	Alumina-Acidic
pH (5 % aqueous Soln.)	9.5 + 0.5	7.0 + 0.5	4.5 + 0.5
Specific Surface [m2/gm]	180 + 10%	180 + 10%	180 + 10%
Brockman Activity	I -II	I -II	I -II
Mean Pore Diameter [A]	60	60	60
Pore Volume [ml/gm]	~ 0.25	~ 0.25	~ 0.25
CI [mval/g]	Nil	0.03	0.14
Fe2O3 [%]	0.02 -0.04	0.01 -0.03	0.03 -0.05
Na2O [%]	0.25 -0.35	0.29 -0.35	0.25 -0.35
Bulk Density gm/lit	~ 920	~ 920	~ 920

Applications

Aluminium Oxide for chromatography is being used in the laboratory and in industrial production.
For Preparative column chromatographic separations, Isolation & Purifications of Antibiotics.
As a support material in analytical chromatographic columns
Purification & Dehydration of Organic Solvents
On industrial scale for the removal of small amounts of undesired components.
e.g. : Side reaction products from mother liquors, water from non-polar solvents, etc.
In the separation and purification of dyes, dye intermediates alkaloids, steroids, liquids, amino acids, hormones, aliphatic and aromatic hydrocarbons, vitamins.
For purification of Natural Products & herbals like Reserpene, Capsacin & some oleoresins.
Storage Conditions: Store in a dry room. Prevention against water, acid and alkalis.