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Product Details
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112945-52-5 Name |
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Name |
Silica, fumed |
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Synonym |
acticel;SILICA GEL 7G;SILICA GEL 8-20 MESH;SILICA GEL 12-28 MESH;SILICA GEL 100;SILICA GEL 60;SILICA GEL 30;SILICA GEL 60 G |
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112945-52-5 Chemical & Physical Properties |
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Melting point |
>1600°C |
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Boiling point |
2230ºC |
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Density |
2.3 lb/cu.ft at 25 °C (bulk density)(lit.) |
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Molecular Formula |
O2Si |
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Molecular Weight |
60.08430 |
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PSA |
34.14000 |
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Exact Mass |
59.96680 |
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Appearance of Characters |
Powder |
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Index of Refraction |
n20/D 1.46(lit.) |
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112945-52-5 Description |
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Fumed silica may be synthesized by high temperature hydrolysis of SiCl4 in O2(N2)/H2 flame. It is amorphous in nature and possesses very high specific area. The micro droplets of amorphous silica fuse into a branch and form a chain like agglomerate. |
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112945-52-5 Uses |
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Synthetic Amorphous Silica has interesting thickening and thixotropic properties, and an enormous external surface area. It is produced by a vapor phase hydrolysis process using chlorosilanes or substituted silanes such as, silicon tetrachloride in a flame of hydrogen and oxygen. This material is formed and collected in a dry state. This product contains no detectable crystalline silica. |
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