Barium sulfate CAS 7727-43-7, it is produced in advanced production techniques, specially modified, excellent performance, high whiteness and even and narrow distribution of particle size, good dispersibility, super-fine; can absorb X-ray, and endow the materials with high density and surface finish, therefore widely used in paints, printing ink, coatings, plastics, rubber, chips, friction plate, ceramics, glass, electronics, cosmetics, pharmacy and food etc.

Physical properties

Appearance                White powder

Density,15℃,g/cm3       4.25–4.5

Boiling point,℃            330

Melting point,℃           1580

Solubility                    Almost insoluble in water, dilute acid and alcohol
Specification
Items                                Industry grade               First grade               Super grade

Purity  (by dry basis)            98%min                         98%min                   98.5%min

Whiteness                          94%min                         98%min                   98.5%min

Volatility at 105 degree         0.2% max                      0.2% max                0.15% max

Ph value                             6.5-9                           6.5-9                      6.5-9

HCL Insoluble Matter            97.5% min                     98% min                  99% min

Water soluble matter            0.2% max                      0.2% max                0.15% max

Iron (on Fe basis)                0.01% max                    0.004% max             0.0015% max

Moisture                            0.15% max                    0.15% max               0.1% max

325 mesh residue(45um)       0.01% max                    0.01% max               0.0015% max

Particle size distribution

≤5um                        100% min                      100% min                 100%
≤3um                        60% min                        70% min                  100%
≤1um                        30% min                        35% min                   95%
D50                          ≤2 um                           ≤1.5 um                   ≤ 0.72 um
D97                          ≤5 um                           ≤2.5 um                   ≤1.20 um

Oil absorption                      14-18%                          14-18%                  12-17%

Specific Gravity                   4.3g/cm3                       4.3g/cm3                  4.3g/cm3

Application

It can be use absorb X-ray, and endow the materials with high density and surface finish, therefore widely used in paints, printing ink, coatings, plastics, rubber, chips, friction plate, ceramics, glass, electronics, cosmetics, pharmacy and food etc.

Package

25kg/bag or 1000kg/bag, 20mt per 20GP container

ChemicalCAS.com offers price quotation and technology support of chemical from China. In the quotation from China factory supplier, we will include price terms, payment, lead time, COA, TDS, MSDS etc. We make sure the reliable purchase source and product quality. If you need to buy chemical from China, please feel free to contact sales@chemicalcas.com