Crystalline silica powder

      Crystalline silica powder

      Crystalline silica powder

      【Explanation】:The crystalline silica powder refers to ɑ-crystalline silica powder made of natural quartz through such processes as sorting, crushing, grinding and classifying.

      【Applications】:

      >Basic characteristics of crystalline silica powder:

      ItemUnitTypical Value
      Appearance/
      White powder
      Density kg/m3
      2.65×103
      Mohs Hardness/
      7
      Dielectric Constant/
      4.65(1MHz)
      Dielectric Loss/
      0.0018(1MHz)
      Coefficient of Linear Expansion1/K
      14×10-6
      Thermal ConductivityW/K·m
      12.6
      Refraction Coefficient/
      1.54

      >Crystalline silica powder can be sorted on basis of following characteristics and prepared as required by customers:

      ItemIndex of CorrectionIntroduction
      PuritySiO2contentAvailable within 98.0-99.9%
      Ion impurityNa+、Cl-,etcCan be reduced below 3ppm
      Particle size distributionD50          Available within D50=0.5-50μm
      Particle size distributionMay be adjusted on basis of typical distribution as needed, including multimodal distribution and narrow-range distribution.
      Appearance characteristicsWhiteness and transparencyWhiteness is within 60-98, high-transparency product is available.
      Surface characteristicsHydrophobicity and oil absorptionTreatment agent of different functions may be selected as needed by customer

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