Main business:QuartzPowder,Talc Powd®±$er,Barium sulfate... ∏
Chemical Formula:SiO2 &n≈&"bsp; Relative A&&tomic Mass:60.08  ¥♥; C A S NO.:7631-86-9 &♥nbsp; H·S· code:25061000
Introduction
Ultrafine crystalline quartz sili₩•ca powder is a natural product'☆φ , high purity(SiO2 content of 99.5%) ,large s∞↔♥urface area , high chemical puritα•y , good dispersion , high whitenes¶↔s , high brightness , low moistu&∏re content . It can be ©used in rubber , resins , coatings♠∞≤λ , paints , unsaturated polyeste ☆£r polymer materials as reinδ₹™©forcing filler materials . It is al±±so known by its low expansion , <↑λ×good reinforcement , superior st¥✘σαability , products `physical<®Ω strength , insulation properties , anφ∏≥★d can work with all kinds of other m✔★✔≈ixed powder filler without φ↔©affect other powders ‘basic performancβ€♥≤e .
Application
Widely used i in rubber , pla¥λ'stics , unsaturated p☆δ∏olyesters , paints ,®σ coatings and other polymer materials β♠Ωreinforced , modified ceramicsΩε✔> , etc., but also for ™∏flat glass , foundry sand , glass α≈fibers , ceramic color glaz∞'e , rust removal by sandblasting , s≤±∑©and filtration , flux'σ , and the manufacturδ∑<e of lightweight refractory coπ∑★ncrete bubbles .
Chemical indicators |
SiO2 &n€bsp; % |
99.5 |
Fe2O3 &nb✘¶€sp;% |
0.03 |
|
Al2O3 % |
0.12 |
|
moisture &nb®$φsp;% |
0.10 |
|
Physical indicators |
True specific gravity  ¥♥•ε; g/cm3 |
2.3 |
Hardness |
7 |
|
Oil absorption  γ₹'₽; g/100g |
18 |
|
Whiteness |
95 |
|
Average Particle Size um |
1.3 |