BARIUM SULPHATE
BARIUM SULPHATE AR
(Confirms to IP, BP, USP)
Short Name: BARIUM SULPHATE
Synonym: Baryte
Basic Details
Article No.
LG0572
Grade
AR
Purity
97.5%
CAS No.
7727-43-7
HS Code
2833.2700
Shelf Life
60 Months
Packings Avialable
Physical Properties
Physical state at 20 °C
Solid
Colour
White powder
pH value
7
Melting point/ Freezing point [°C]
1580°C
Boiling point [°C]
1600°C
Density [g/cm3]
4.5
Solubility in water [% weight]
Insoluble in water
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
Safety Information & Hazard Symbols
Safety Statement
22-24/25