| CAS No.: | 14808-60-7 |
|---|---|
| Formula: | Sio2 |
| EINECS: | 215-199-1 |
|
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| Product Name: | Quartz |
| CAS: | 14808-60-7 |
| MF: | O2Si |
| MW: | 60.08 |
| EINECS: | 215-684-8 |
| Product Categories: | Inorganics |
| Quartz Chemical Properties | |
| Melting point | 1610 °C(lit.) |
| Boiling point | 2230 °C |
| density | 2.6 g/mL at 25 °C(lit.) |
| refractive index | n20/D 1.544(lit.) |
| storage temp. | no restrictions. |
| form | powder |
| color | white |
| Specific Gravity | 2.2-2.6 |
| PH | 5-8 (400g/l, H2O, 20ºC)(slurry) |
Silica near perfect is crystal, silica dehydration is agate, silica water colloid solidification becomes opal, silica grain is less than a few microns when the composition of chalcedony, medulla, secondary quartzite.
Silica can be used for protein, sugar powder, milk powder, cocoa powder, cocoa butter, plant powder, instant coffee, soup powder and so on.
High purity silica is crystal, can be used for the preparation of optical instruments, lenses and glasses, poor quality can be used for the preparation of wine glasses, fruit plates, etc., because of the high temperature resistance, resistance to sudden cold and sudden heat of silica can also be used as cookware and coffee.
Low purity silicon dioxide can be made of glass, silicon dioxide is the manufacture of glass, quartz glass, water glass, optical fiber electronics industry important components, optical instruments artifact and refractory materials are important materials for scientific research.
| Packing | 25 kg/bag |
| Packing time | * 24 hours by express * 10 days by air *15 days by sea |
| Shipping time by express | 5-7 days by TNT, DHL, FEDEX, UPS, EMS |
| Shipping time by air | 7-10 days |
| Shipping time by sea | * South America: around 40-60 days * Southeast Asia: around 10-25 days * Africa: around 40 days * Europe: around 35 days |
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