Fused Quartz Lianyungang Donghai colorful mineral products companies to use high purity quartz from fused in high temperature silica of high purity, SiO2 content, low thermal conductivity, low coefficient of thermal expansion, high insulation characteristics of chemically stable.

Fused is made of highest purity Chinese crystal Silica by electrically fusing (fusing temperature 1800-2000℃)to amorophos Silicon dioxide , then specially engineered ingots, granular and flour form designed for different usage. This product has a very low thermal conductivity and excellent thermal shock resistance.

Special Features: Near zero thermal expansion coefficient Excellent thermal shock resistance Pure(high SiO2 content,low Iron, Potassium & Sodium Oxide) Consistent Chemistry Statistically controlled particle size distribution	Main Applications:
Chemical Composition:

Item	Ingot & Granule	Powder
SiO2	99.9%	99.8%
AL2O3	40ppm	500ppm
Fe2O3	40ppm	50ppm
Na2O	40ppm	50ppm
K2O	40ppm	50ppm

　　Physical Properties:

• Appearance: Transparent Ingots, Granule or White Powder
• Specific Gravity: 2.21
• Hardness( Mohs): 7.0
• PH: 5-7
• Whiteness: 95Min.

　　Size Available: (Ingot, Granules and powder):

　　(1) 3-10mm, 10-50mm, 8-5mm, 5-3mm, 3-1mm, 1-0.5mm, 1-0.2mm,0-0.5mm, 0.5-0.2mm,
　　　　0.5-0.1mm, 0.2-0.1mm, 0.5-1mm.
　　(2) -4+10mesh, -10+20mesh, -20+50mesh, -30+50mesh,-50+100mesh, -120F,
　　　　-200F, -325F, -400F, -600F.

　　Please contact us to inquiry for more about products particles size distribution, and chemical composition.