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Precipitated Barium Sulfate for Masterbatch Industry

Molecular formula: BaSO4
HS code: 28332700
CAS No.: 7727-43-7
EINECS No: 231-784-4


Precipitated Barium Sulfate used in masterbatch production, can improve acid and alkali resistance, gravity, thermal stability and dispersity. It can also help in production cost saving.



                                    MATERIAL PROPERTIES
Apperance White Powder
D50 (μm) 0.7
BaSO4 content (%) 98.5
Moisture (%) 0.05
Sieve Residue On 325 Mesh   (%) 0.003
Whiteness  (%) 98.7
Oil Absorption g/100g 14~16
Ph Value 7~9
Specific Gravity     g/cm3 4.3~4.4
Water Soluble Matters (%) 0.06
Refraction Index 1.64
Electrical Conductivity (Us/cm) 150


1. It has an arrow particle size distribution curve, which forms the best half-wavelength ratio and has excellent penetrability to visible light waves.

2. The spherical crystal structure prepared by the sulfuric acid method is more conducive to the diffraction of light.

3. Precipitated Barium Sulfate has a unique refractive index property which is similar to the refractive index of PE material. Therefore, Precipitated Barium Sulfate has been successfully applied to high transparency blown film or tape cast polyolefin film products, providing excellent optical properties and opening effect.

4. Barium Sulfate is an inert extender which has a low oil absorption, which means the coating has only a slight reduction in flow and smoothness even at higher levels, such as 50 PHR or 33 percent loading.

5. Barium Sulfate has a Mohs hardness of 3 and is very low in abrasion.

6. Barium Sulfate exhibits a continuous, high diffuse reflectance of light, in the visible range, and also in UV and IR ranges.

7. Barium Sulfate is the standard for measuring whiteness.


● Efficient cost-saving

● Good flow properties Good dispersity and affinity 

● Improves thermal stability

● Good brightness

● Excellent narrow particle size range

● High purity guaranteed & High whiteness

● Nice covering power

● Resistant to acid and alkali

● Stable chemical properties

● Top wettability

● Non-toxic and magnetic



Factory standard: 25kg/bag, plastic woven bag with lining.

24MT/20'GP Container for Barium Sulfate