硅酸 (CAS No.7699-41-4)
- 物化性质
- 白色无定形粉末或胶状物，无臭，呈弱酸性。不溶于水和乙醇，溶于氢氧化钠、氢氧化钾等碱溶液及氢氟酸。受热易脱水，逐渐转化为二氧化硅。
- 技术参数
- 分子式为H2SiO3。 分子量为78.1。 外观为白色无定形粉末或胶状物。
- 溶解性
- 不溶于水，溶于碱溶液和氢氟酸。
English description（英文原文，共 968 字符）
Product Name:Silicic acid
English Name:Silicic acid
CAS No.:7699-41-4
Aliases:Metasilicic acid
Molecular Formula:H2SiO3
Physical Properties:White amorphous powder or gelatinous precipitate, odorless and weakly acidic. Insoluble in water and ethanol, soluble in alkali solutions such as sodium hydroxide and potassium hydroxide and in hydrofluoric acid. On heating it readily dehydrates and gradually converts to silicon dioxide.
Uses:Silicic acid is mainly used to prepare silica gel, molecular sieves, catalyst supports and adsorbents. It is used as a binder and decolorizing agent in the textile, papermaking and metallurgy industries. In analytical chemistry, it is used as a precipitating agent for group separation.
Technical Specifications:
The molecular formula is H2SiO3.
The molecular weight is 78.1.
The appearance is white amorphous powder or gelatinous precipitate.
It is insoluble in water and soluble in alkali solutions and hydrofluoric acid.
English Name:Silicic acid
CAS No.:7699-41-4
Aliases:Metasilicic acid
Molecular Formula:H2SiO3
Physical Properties:White amorphous powder or gelatinous precipitate, odorless and weakly acidic. Insoluble in water and ethanol, soluble in alkali solutions such as sodium hydroxide and potassium hydroxide and in hydrofluoric acid. On heating it readily dehydrates and gradually converts to silicon dioxide.
Uses:Silicic acid is mainly used to prepare silica gel, molecular sieves, catalyst supports and adsorbents. It is used as a binder and decolorizing agent in the textile, papermaking and metallurgy industries. In analytical chemistry, it is used as a precipitating agent for group separation.
Technical Specifications:
The molecular formula is H2SiO3.
The molecular weight is 78.1.
The appearance is white amorphous powder or gelatinous precipitate.
It is insoluble in water and soluble in alkali solutions and hydrofluoric acid.
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常见问题
- 硅酸的 CAS 号是多少？
- 硅酸的 CAS 号是 7699-41-4。
- 硅酸的分子式和分子量是什么？
- 硅酸的分子式为 H2SiO3。
- 硅酸的英文名称是什么？
- 硅酸的英文名称为 Silicic acid。
- 硅酸还有哪些别名？
- 硅酸又称 偏硅酸。
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- 硅酸的供应商主要分布在 上海市（1 条） 等地。
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- 平台上硅酸的供应级别包括 工业级。
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- 硅酸的报价单位主要有 千克。
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- 掌上化工硅酸产品页汇总了各供应商的最新报价与规格，地址：/chemicals/7699-41-4/。部分供应商价格为电议，可通过页面上的询价功能直接获取。
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