Silica Fume Microsilica Powder, 325 Mesh, for Concrete, Refractory and Coating Qualification Enquiries
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Particle-size designationMesh designationColorWhite
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Physical formPowder
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CAS No.69012-64-2Purity99.5%
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Model Number325 meshAppearancewhite powder
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ApplicationPaint,Plastic,ElectronicsClassificationSilicon Dioxide
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EINECS No.231-545-4Grade StandardIndustrial Grade, Electron Grade
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Molecular FormulaSiO2Other NamesSilica Fume
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Whiteness92Fe Content< 0.01%
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Al2O3 Content< 0.01%Moisture< 0.01%
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Particle Size325 Mesh
This industrial silica-fume microsilica is described as white silicon dioxide powder with a 325 mesh designation. Concrete, refractory and coating enquiries are named alongside paint, plastic and electronics assessment areas, with the actual chemical grade to be confirmed before selection.
Request a single sample-linked chemical report
Confirm the silica assay and its analytical basis for the material proposed. The stated Fe content, Al2O3 content and moisture limits are each <0.01%; request the methods supporting those separate results. Keep Fe content as reported rather than treating it as a different oxide measurement.
Define what the particle and optical descriptions measure
Obtain the sieve standard and distribution behind 325 mesh, together with the relevant phase characterization. Reported whiteness is 92, with its scale and method to be confirmed. That value should not be assigned an additional unit or treated as proof of performance in a finished formulation.
- Concrete or refractory enquiry
- Specify the material criteria and qualification tests required by the project.
- Coating or electronics enquiry
- Specify the binder or process and the relevant impurity and particle requirements.
Evaluate a confirmed grade for the intended process
Review matched technical and safety documentation before arranging a representative assessment. No reactivity, refractory service temperature or electronic-grade approval is established here. Retain the confirmed assay, particle methods and sample identity with the process evaluation so a repeat enquiry refers to the actual material and qualification scope examined.
