BARIUM SULPHATE AR

Short Name: BARIUM SULPHATE

Other Names: Baryte

(Confirms to IP, BP, USP)

Chemical Specifications

Appearance : Fine, white, odorless, tasteless, bulky powder, free from grittiness

Assay (as BaSO4) : 97.5 -100.5%

Solubility : Practically insoluble in water, in organic solvents, and in solutions of acids and of alkalies

Identifications : To comply IP, BP, USP tests

Acidity or alkalinity : To comply IP, BP tests

pH (10% w/w solution) : 3.5 –10.0

Acid soluble matter : Max 0.3%

Oxidisable sulfur compounds : To comply BP test

Soluble barium salts : Max 0.001% (to comply IP test)

Phosphate (PO4) : To comply IP tests

Heavy metal (as Pb) : Max 0.001%

Sulphide (S) : Max 0.5 µg/g (to comply IP test)

Arsenic (As) : Max 0.0002%

Loss on ignition (at 600 ± 50°C) : Max 2.0 %

Bulkiness : To comply IP tests