Silica Powder SiO2, 99.5% Purity, 325 Mesh, for IC Electronics, Plastics, Coating, Paint and Rubber Filler 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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Whiteness90\92\95Fe Content< 0.01%
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Al2O3 Content< 0.01%Moisture< 0.01%
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Particle Size325 Mesh
This industrial silicon dioxide powder has stated purity of 99.5% and a 325 mesh designation. IC/electronics, plastics, coating, paint and rubber filler enquiries are named, with the actual grade and process qualification to be confirmed.
Match impurity limits to the required analytical basis
Fe content, Al2O3 content and moisture are each stated as <0.01%. Request the methods and a current report for the proposed sample, keeping those analytes distinct. An impurity limit is a material characteristic rather than proof of suitability for a particular electronic component or polymer formulation.
Identify the actual phase and optical grade
Obtain phase characterization and the sieve standard and distribution behind 325 mesh. Ask which measured whiteness result applies to the proposed grade and request its scale and method. Several optical designations do not by themselves identify selectable variants or establish a single guaranteed value.
- IC or electronics brief
- Define the relevant impurity, particle and process acceptance requirements.
- Other filler brief
- Define the binder or rubber system and the properties to be evaluated.
Qualify the sample within the intended application
Review matched technical and safety documents before assessing a representative material. No electronic-grade approval, film or coating benefit, or universal loading ratio is established here. Record the powder identifier and test methods with the formulation or process results. Use that evidence set in repeat enquiries so the discussion remains specific to the grade and application actually examined.
