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Particle-size designationD50 specifiedPhysical formPowder
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CaO Content (%)-Dimensionspowder
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Fe2O3 Content (%)-MgO Content (%)-
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Moisture Content (%)0.2%SiO2 Content (%)-
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ApplicationPaintBaO Content (%)-
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BaSO4 Content (%)98.5%Na2O Content (%)-
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TypeBarite PowderWeight4.4
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BaSO4 purity98.5%D50 Particle size0.6μm
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UsagePaintCertificateRoHS
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Hs code28332700ApperanceWhite Powder
A paint enquiry can compare this white barium sulfate powder through several distinct measurements. Its stated BaSO4 content is 98.5%, moisture content is 0.2%, and the particle parameter gives D50 as 0.6 μm. The selectable whiteness range is 98.5–99%.
Compare the micrometre particle parameter carefully
Request the measurement report supporting the stated D50 of 0.6 μm. Confirm the method and obtain the wider particle distribution before defining a powder acceptance limit. A median particle value does not describe every particle or establish dispersion in the finished paint.
Choose the whiteness requirement independently of content
The actual selectable range is 98.5–99% whiteness. Set the required range and measurement basis for the sample rather than treating its composition percentage as an optical result. Review moisture analysis separately, with the test conditions needed for the intended formulation.
- Manufacturing description
- Ask for the confirmed route and grade-specific technical documentation.
- Restricted-substance requirement
- Request relevant test documents if the procurement specification calls for them.
Use the paint system to qualify the powder
Define the binder, processing conditions and finished-film criteria before trialling the selected sample. Compare the resulting paint against those criteria under controlled conditions. White powder appearance and fine-particle measurements do not independently establish film colour, gloss or durability.
Make the sample record complete
Keep the composition report, particle methods and selected whiteness requirement attached to the actual material tested. Confirm any compliance documents against that grade and intended use before final acceptance.
