Precipitated Barium Sulphate | Pigment White 21 | COLORCOM BISUL BS-311 | 7727-43-7, 13462-86-7

Short Description:

Precipitated barium sulfate is a white precipitate produced by the reaction between barium ions and sulfate ions in solution, which is stable in nature, almost insoluble in water, ethanol and acid, but soluble in hot sulfuric acid.

                                  

Product Name:   Barium Sulphate

COLORCOM Code: COLORCOM BISUL BS-311

C.I. No.: 77120

Color Index: C.I. Pigment White 21

CAS No.:   7727-43-7, 13462-86-7

EINECS No.: 231-784-4

Molecular Formula: BaO4S


Product Detail

Product Tags


Index

Value

(National Standard CB/T2899-2008)

Appearance

White powder

BaSO4 (dry %)

≥ 98.8

Moisture (%)

≤ 0.10

Water Soluble (%)

≤ 0.10

Iron (%)

≤ 0.0015

Whiteness (%)

≥ 98.50

Oil Absorption (g/100g)

15

PH Value

7.5

 Particle Size (45μm) (%)

≤ 0.01

Particle Size Distribution

Less than 10μm

≥ 99

Less than 5μm

≥ 95

Less than 2μm

≥ 70

Precipitated barium sulfate has a high refractive index (1.63 to 1.65) and exhibits a whiter color and some hiding power. It is almost insoluble in water, ethanol and acid, soluble in hot sulfuric acid. Easily with potassium permanganate , calcium carbonate or metal nitrate made of mixed crystals. It can be reduced to barium sulfide with carbon at high temperature.

Synthesis Process of Precipitated Barium Sulphate:

Produce the original particle size barium sulphate product through control the chemical reaction of pure barium sulfide and Sodium sulfate solutions.


1.Chemical synthesis used in the production of COLORCOM BISUL BS-311 has endowed more outstanding performances. It becomes good filler which has high whiteness, low oil absorption, low wear index, and low bulk color.

2.COLORCOM BISUL BS-311, acid and alkali, good stability in water and organic medium improved its light resistance and weather resistance.

3.We use advanced grinding technology and professional crystal form control in the production of COLORCOM BISUL BS-311. Its unique narrow particle size distribution, ultra-fine particle size, good specific surface area, and low viscosity, makes it suitable for diversified applications.The hardness value of COLORCOM BISUL BS-311can reach 3Mohs 3, which endowed this product low wear capacity.

4.COLORCOM BISUL BS-311 can keep the high light reflectivity not only in ultraviolet or infrared environment, but also in broad spectral range areas. This product can applied to any high gloss coating products, which can bring more business value to the customers.



Paint and coatings, plastics, rubber, friction materials, battery, glass, ceramic.

Packing: 25kg/Bag.


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