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            Crystalline silica powder
            

		
            

		
            
	
            
	
            


            

            
  
            
    
 
    
            
      
            Crystalline silica powder
            
      
            
      
      
            
          
          
            
            
            Crystalline silica powder
            
            
            【基本說(shuō)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(yīng)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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