Barium sulfate
Molecular formula: BaSO4
Molecular weight: 233.39
Barium sulfate properties:
Colorless diagonal crystal or white amorphous powder.Relative density 4.50 (15 ℃).Melting point is 1580 ℃.It is almost insoluble in water, ethanol and acid.Soluble in hot and concentrated sulfuric acid, easy to lump when drying.At 600 ℃ with carbon reduction into barium sulphide.
Application of barium sulfate:
Used as a raw material or filler for paints, inks, plastics, rubber and accumulators, as well as surface coating agents for paper and copper sheets, sizing agents for the textile industry.Glass products are used as clarifiers to remove bubbles and add luster.It can be used as a protective wall for radiation protection.It is also used in ceramics, enamel, spices and pigments.It is also the raw material for other barium salts.
Barium sulfate package:
The bags are packed in latex or woven bags with a net weight of 25kg and 50kg per bag.Store in a dry warehouse.Do not store mixed goods with non-ferrous items in case of color, light and easy to handle when loading and unloading, to prevent packaging breakage.
Barium sulfate quality standard
Index Name | Excellent | First class |
Appearance | white powder | white powder |
barium sulphate(BaSO4),%≥ | 98.0 | 97.0 |
PH(100g/L) | 6.5~9.0 | 5.5~9.5 |
hydrotrope,%≤ | 0.30 | 0.30 |
105℃volatile matter%≤ | 0.30 | 0.30 |
Fe% ≤ | 0.004 | 0.006 |
whiteness ≥ | 94.0 | 92.0 |
fineness(0.045mm)/% ≤ | 0.2 | 0.2 |
oil absorption/(g/100g) | 10~30 | 10~30 |