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          Crystalline silica powder

          Crystalline silica powder

          Crystalline silica powder

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

          【應用范圍】:

          >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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