硅粉 (CAS No.69012-64-2)
- 物化性质
- 灰色或浅灰色超细粉末,主要成分为无定形二氧化硅,具有高比表面积和火山灰活性。密度约2.2 g/cm³,堆积密度200~300 kg/m³,熔点约1650℃,不溶于水和酸,能与强碱反应。
- 技术参数
- SiO2含量≥85% 比表面积≥15000 m²/kg 粒径中值D50为0.1~0.5 μm 烧失量≤3% 需水量比≤125%
English description(英文原文,共 807 字符)
Product Name:Silica fume
English Name:Silica fume
CAS No.:69012-64-2
Aliases:Microsilica, Silica fume
Molecular Formula:SiO2
Physical Properties:Gray or light gray ultrafine powder, mainly composed of amorphous silicon dioxide, with high specific surface area and pozzolanic activity. Density about 2.2 g/cm³, bulk density 200~300 kg/m³, melting point about 1650°C, insoluble in water and acids, can react with strong bases.
Uses:Used as an admixture for high-performance concrete, significantly improving the strength and durability of concrete; also widely used in refractories, ceramics, rubber and coatings as reinforcing filler.
Technical Specifications:
SiO2 content ≥85%
Specific surface area ≥15000 m²/kg
Median particle size D50: 0.1~0.5 μm
Loss on ignition ≤3%
Water demand ratio ≤125%
English Name:Silica fume
CAS No.:69012-64-2
Aliases:Microsilica, Silica fume
Molecular Formula:SiO2
Physical Properties:Gray or light gray ultrafine powder, mainly composed of amorphous silicon dioxide, with high specific surface area and pozzolanic activity. Density about 2.2 g/cm³, bulk density 200~300 kg/m³, melting point about 1650°C, insoluble in water and acids, can react with strong bases.
Uses:Used as an admixture for high-performance concrete, significantly improving the strength and durability of concrete; also widely used in refractories, ceramics, rubber and coatings as reinforcing filler.
Technical Specifications:
SiO2 content ≥85%
Specific surface area ≥15000 m²/kg
Median particle size D50: 0.1~0.5 μm
Loss on ignition ≤3%
Water demand ratio ≤125%
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常见问题
- 硅粉的 CAS 号是多少?
- 硅粉的 CAS 号是 69012-64-2。
- 硅粉的分子式和分子量是什么?
- 硅粉的分子式为 SiO2。
- 硅粉的英文名称是什么?
- 硅粉的英文名称为 Silica fume。
- 硅粉还有哪些别名?
- 硅粉又称 微硅粉、硅灰。
- 硅粉有哪些供应商和生产厂家?
- 掌上化工当前收录 1 条硅粉供应报价,来自 1 家供应商,可按地区、纯度、级别筛选对比。
- 硅粉的供应商主要分布在哪些地区?
- 硅粉的供应商主要分布在 上海市(1 条) 等地。
- 硅粉有哪些级别可选?
- 平台上硅粉的供应级别包括 工业级。
- 硅粉的报价单位是什么?
- 硅粉的报价单位主要有 千克。
- 哪里可以查到硅粉的价格?
- 掌上化工硅粉产品页汇总了各供应商的最新报价与规格,地址:/chemicals/69012-64-2/。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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