- 熔点 :
- >1600 °C(lit.)
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- 沸点 :
- >100 °C(lit.)
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- 密度 :
- 2.2-2.6 g/mL at 25 °C
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- 折射率 :
- 1.46
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- 闪点 :
- 2230°C
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- 储存条件 :
- Refrigerator (+4°C)
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- 溶解度 :
- Practically insoluble in water and in mineral acids except hydrofluoric acid. It dissolves in hot solutions of alkali hydroxides.
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- 形态:
- suspension
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- 比重:
- 2.2
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- 比重:
- 0.97
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- 比重:
- 1.29
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- 颜色:
- White to yellow
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- PH值:
- 5-8 (100g/l, H2O, 20℃)(slurry)
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- 水溶解性 :
- insoluble
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- 水解敏感性:
- 6: forms irreversible hydrate
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- 水解敏感性:
- 5: forms reversible hydrate
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- 水解敏感性:
- 4: no reaction with water under neutral conditions
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- 敏感性 :
- Hygroscopic
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- Merck :
- 14,8493
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- 稳定性:
- Stable.
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- CAS 数据库:
- 7631-86-9(CAS DataBase Reference)
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- NIST化学物质信息:
- Silicon(iv) oxide(7631-86-9)
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- (IARC)致癌物分类:
- 3 (Vol. Sup 7, 68) 1997
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- EPA化学物质信息:
- Silica (7631-86-9)
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