We Are a Barium Sulfite Supplier

Barium sulfite (also known as barium sulfonate or sulfurous acid) is an inorganic salt used in PVC additives. BassTech supplies two different grades of BaSO3 to better meet your manufacturing needs. These products are high molecular weight and oil soluble. We also have options for over-based material. These are recommended for formulations that require a high level of rust protection and non-staining characteristics. With their inherent demulsibility properties, barium sulfonate provides superior corrosion inhibition performance in the following key applications:

  • Petroleum Additives
  • Anti-wear
  • Dispersants
  • Corrosion Inhibitors
  • Emulsifiers
  • Extreme Pressure
  • Friction Modifier
  • Antifoam


BassTect BA1
BassTect BA2
Barium (%)
 >11.5  >6.6
Specific Density (20°C,g/cm3)
 1000-1050  1000-1050
Viscosity (100°C,mm2/s)
 50-100  50-100
Flash Point (°C)
 >165  >165
 Moisture (%)  <0.1  <0.1
 Machinery Impurity (%)  <0.01  <0.01
 Base Value (mgKOH/g)  35-55  <1.0
 Acid Value (mgKOH/g)   <1.0
 Moist Box  >96h  >96h
 Oil Solubility  Pass  Pass
 Appearance Clear Dark Brown Viscous Liquid
Posted in PVC Additives