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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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