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Silica

Short Description:

Silica is also known as silica, chemical formula SiO₂. There are two kinds of crystalline silica and amorphous silica in nature.The chemical properties are relatively stable. It does not dissolve in or react with water. It's an acid oxide. It doesn't react with normal acids.

Product Detail

Chemical Name: Silica
Molecular Formula: SiO2
Molecular Weight: 60.08
CAS: 7631-86-9
Character: Silica is also known as silica, chemical formula SiO₂. There are two kinds of crystalline silica and amorphous silica in nature.The chemical properties are relatively stable. It does not dissolve in or react with water. It's an acid oxide. It doesn't react with normal acids.
Uses: Silicon dioxide is the manufacturing of glass, quartz glass, water glass, optical fiber, electronic industry important components, optical instruments, crafts and refractory materials, is an important material for scientific research.
Packing: It is packed with plastic bag as inner layer, and a compound plastic woven bag as the outer layer. The net weight of each bag is 25kg.
Storage & Transportation: It should be stored in a dry and ventilative warehouse, kept away form water and moisture during transport, unloaded with care so as to avoid damage to bags. Furthermore, it should be stored separately from poisonous substances.
Standard: FCC-1983
Quality index: Assay (SiO2 ≧94.0%
As ≤0.0003%
Heavy metals (as Pb) ≤0.003%
Loss on drying ≤7.0%
Loss on ignition ≤8.5%
Sulifate (as Na2SO4) ≤5%
Screen residue (325 MESH) ≤5%
PH volume 6.0---7.5
Conclusion The specification conforms with FCC--1983

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