Product Overview
Synonyms: Pure Crystalline Silica Powder, Quartz Nanopowder, SiO2 Nanoparticles, Silicic oxide Micropowder,
We also produce Precipitated Silica(White Carbon Black).
Chemical Formula: SiO2
CAS Number: 7631-86-9
EINECS Number: 231-545-4
Silicon powder is a non-toxic, tasteless, non-metallic mineral powder, made from natural quartz or fused quartz by crushing, ball milling (or vibrating, air milling), flotation, acid pickling purification, high-purity water treatment and other processing. It has features of high hardness, low oil absorption, easy to disperse, not easy to precipitate, strong stability, acid corrosion resistant, and so on. Therefore, it is widely used in chemical, electronic, integrated circuit (IC), electrical appliance, plastic, coating, advanced paint, rubber, national defense and other fields. With the rapid development of high-tech field, Silicon dioxide micropowder will also enter a new period of historical development.
Product Data
L-Series
Product Code | Median diameter | Oil absorption value | Refractive index | pH value |
L020 | 44 μm | 16 | 1.55 | 7.0 |
L032 | 19 μm | 19 | 1.55 | 7.0 |
L050 | 13 μm | 20 | 1.55 | 7.0 |
L070 | 10 μm | 21 | 1.55 | 7.0 |
L125 | 5 μm | 23 | 1.55 | 7.0 |
L250 | 2.7 μm | 26 | 1.55 | 7.0 |
L800 | 1.3 μm | 29 | 1.55 | 7.0 |
H-Series
Product Code | Median diameter | Oil absorption value | Refractive index | pH value |
H032 | 19 μm | 18 | 1.54 | 7.0 |
H050 | 13 μm | 19 | 1.54 | 7.0 |
H070 | 10 μm | 20 | 1.54 | 7.0 |
H125 | 5 μm | 21 | 1.54 | 7.0 |
H300 | 2.7 μm | 25 | 1.54 | 7.0 |
H800 | 1.3 μm | 29 | 1.54 | 7.0 |
If the above median diameter is not what you need, we can customize.
Silicon Dioxide (SiO2) Micropowder Composition
We are the largest manufacturer of ultra-fine silica powder produced by jet milling in South China. ANYWHERE POWDER silica powder is using high purity siliceous minerals as raw material, producing with wave and airflow impact of near zero pollution.
Chemical Composition
Composition | SiO2 | Al2O3 | Fe2O3 | MgO | CaO | NaO |
Average value | >99.3% | ≤0.07 | ≤0.01 | ≤0.01 | ≤0.01 | ≤0.01 |
Features: Acid and Alkali Resistant, High Insulation, Environmental Protection, Ultra White, High Flame Retardant, High Purity, Low Expansion, High Thermal Conductivity, Strong Weather Resistant, Particle Size Even, Corrosion Resistant, Ultra Fine.
ANYWHERE POWDER Silicon Dioxide Micropowders vs. Others
Others | ANYWHERE POWDER L-Series |
ANYWHERE POWDER H-Series | |
Median diameter | Mainly 10~53μm, fewer small size grades | 1.3~45μm, many grades | 1.3~45μm, many grades |
Big particle | Contain, have high potential risk | NO big particle | NO big particle |
Microscopic shape | non-spherical | Nearly spherical | Nearly spherical |
Particle-size distribution | wide range, hard to control | narrow range, D50<½D97 | narrow range, D50>½D97 |
Purity | Contain non-quantitative heavy metals, high Fe-Al content | High purity, high whiteness | Ultra purity, ultra whiteness |
Price | Primitive process, poor quality, high price | Mature process, large capacity, good Cost-Performance ratio | Higher, better Cost-Performance ratio |
Application | Narrow areas, mainly middle-end and low-end | mainly middle-end, less high-end | Wide area, mainly high-end |
Our Silicon Dioxide Test Report
Standard value | Test result value | Test result | |
SiO2 | ≥99.2% | 99.6% | Passed |
Loss on ignition | ≤0.3% | 0.16% | Passed |
Oil absorption value | ≤25 g/100g | 22 g/100g | Passed |
Whiteness at ambient temperature | ≥94% | 95.6% | Passed |
D97 particle size | ≤25 μm | 20.1 μm | Passed |
D50 particle size | 8.5(±2.5) μm | 9.0 μm | Passed |
Aluminium oxide | ≤0.05% | 0.01% | Passed |
Iron oxide | ≤0.01% | <0.01% | Passed |
Mohs hardness | 7 | 7 | Passed |
pH value | 5.0-7.0 | 7 | Passed |
Heavy metal | <100mg/kg | / | Passed |