99% Purity 5um Crystalline Silica Powder Ultrafine Silica
Price:
Negotiable
MOQ:
1KG
Delivery Time:
3-5 work days
Brand:
SINOENERGY GROUP
Product Description
Crystalline Silica Powder
CS-D-5
Characteristic:
1, Produced with high purity natural quartz by super fine grinding and separating.
2, Excellent characteristics in chemical stability,environment resistibility,insulation,
strengthening character and heat stability.
Applications:
Filler used in Copper Clad Laminates, etc.
Typical Physical Data:
| Items | unit | Typical Value |
| Appearance | / | White powder |
| Density | kg/cm3 | 2.65 x 103 |
| Moths Hardness | / | 7 |
| Dk | εr | 4.65 |
| Df | tanδ | 0.0018 |
| Linear Expansion Coefficient | 1/k | 14×106 |
| Thermal Conductivity | W/K·m | 12.6 |
Typical Test Data:
| Test Items | Unit | CS-D-5 | Instrument or Method | |
| Particle size | 45µm On | % | - | Wet Sieve |
| 75µm On | % | 0 | ||
| D50 | µm | 5.1 | MS2000 | |
| D100 | µm | 24 | ||
| H2O | % | 0.07 | Weight Method | |
| Whiteness | / | 96.5 | Whiteness meter | |
| Oil Absorption | g/100g | 35.6 | BOP | |
| A.A.S. | m2/g | 3.5 | Nitrogen adsorption | |
|
Chemical Composition |
SiO2 | % | 98.58 | Weight Method |
| Fe2O3 | % | 0.006 | Spectrophotometer | |
|
Extraction Water |
Ec | µs∕cm | 7.5 | EC Meter |
| Cl- | ppm | 1.8 | Automatic Potential Titrator | |
| Na+ | ppm | 2.2 | Atomic Absorption Spectrophotometer | |
| pH | / | 6.4 | pH Meter | |
Above specification are for common uses,and can be adjusted upon user’s request.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
SINOENERGY GROUP
Location
12/F Kuntai Building No.10 Chaowai Street,Chaoyang District,Beijing China.
Contact Person
Sales Department