Heavy Kaolin BP

Kaolin is Kaolinite is a clay mineral, part of the group of industrial minerals, with the chemical composition Al2Si2O5 (OH)4. It is a layered silicate mineral, with one tetrahedral  sheet of silica (SiO4) linked through oxygen atoms to one octahedral sheet of alumina  (AlO6) octahedral. Rocks that are rich in kaolinite are known as kaolin or china clay.


Kaolin is widely used cosmetics. Also used as a toothpaste ingredient.


General Specifications

Test Specification
Characters It occurs as a fine, white or greyish-white, unctuous powder.

Test A

Test B

Test C


A)    Specified test. A gelatinous white precipitate is formed.

B)    Specified test.

C)     It gives the reactions of silicates

Solubility Practically insoluble in water and in organic solvents.
Acidity or alkalinity Specified test.
Organic impurities Specified test. The residue is only slightly more coloured than the original substance.
Adsorption power Specified test.
Swelling power Specified test. The mixture does not flow
Substances soluble in dilute hydrochloric acid Not more than 1.0%
Chlorides Not more than 250ppm
Sulfates Not more than 0.1%
Calcium Not more than 250ppm


Shelf life, Storage and Packing

It should be stored in a segregated area in a cool and ventilated place away from combustible materials. Keep in a tightly closed container, sealed until ready for use. It is packed in 25kg or 50kg HDPE bags or drums as required.


GLP, cGMP (FDA) Approved, ISO 9001, ISO 14001, ISO 45001, ISO 17025, ISO 22000, FSSC 22000, FSSAI, Halal and Kosher certified.
We observe WHO Good manufacturing practice and Good laboratory practice.

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