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FUSED SILICA

Fused silica is manufactured from high purity natuarl sili-ca stone,melted at extremely temperature.With high purity,high chemical and electricity resistance,lowest thermal ex-pansion and exceptionally good thermal shock resistance.Our fused silica is mainly used in the fields of epoxp molding compound,investment casting,refractory,ceramic,shell mould,silicon rubber,electrical insulator industries etc.

 

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FUSED SILSCA LUMP FUSED SILICA GRAIN FUSED SILICA POWDER

Standard: 1-100MM
Composition: SiO2: 99.99%-99.90%;
Fe2O3:6ppM max;  Li:1.0ppM;
Al2O3:30ppM max   K:9 ppM max;
Na2O :11ppM max;  PH:5.8

Standard: 0.1-15 MM
Composition: SiO2: 99.99%-99.90%;
Fe2O3:7ppM max;  
Li:1.0ppM; Al2O3:30ppM max
K:9 ppM max;
Na2O :11ppM max;  PH:5.8

Standars: 100-325-1250 mesh
Composition: SiO2: 99.9%min;
Fe2O3:60 ppM; Li:1.0ppM;
AL2O3:30 ppM; K:9ppM;
Na2O:12 ppM; PH:6
   
  FUSED SILICA POWDER  

Fused silica powder is manufactured from fused quartz,it is high purity amorphous powder.For its lower linear expansion coefficient,lower tension and lower radiation ect good characters,it is mainly used as material for epoxy molding compound of large cir-cuit integration and super large circuit integration, epoxy potting compound,silicon rub-ber and other chemical industrys fields.

 

Chemical Analysis And Partica Size Distrbution Specification RG300 RG400 RG600 RG1000
Chemical Analysis SiO2 (%) >99.90 >99.90 >99.90 >99.90
A1(ppm) 35 35 40 40
Fe(ppm) 40 40 50 60
K(ppm) 25 25 25 30
Moisture(%) 0.1 0.1 0.1 0.1
Loss of lgnition(%) 0.1 0.1 0.1 0.1
Water extraction liquid Na+(ppm) 3 3 3 3
K+(ppm) 2 2 3 3.5
Cl(ppm) 1.0 1.0 1.0 2
Ec(μs/cm) 3 3 5 5
PH 5.5-7.5
D50(μm) 22-19 17-15 14-12 6-8


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