84880

二氧化硅

purum p.a., acid purified

• 别名: 方石英, 石英, 砂石, 硅石
• 线性分子式: SiO₂
• CAS号: 60676-86-0
• 分子量: 60.08
• MDL编号: MFCD00011232
• UNSPSC代码: 12352303
• PubChem化学物质编号: 329769325
• NACRES: NA.21

属性

• 等级: purum p.a.
• 质量水平: 100
• 表单: powder or crystals
• 质量: acid purified
• 缺失: ≤0.1% loss on ignition
• 折射率: n20/D 1.544 (lit.)
• 粒径: 40-200 mesh
• mp: 1610 °C (lit.)
• 密度: 2.6 g/mL at 25 °C (lit.)
• 痕量阴离子: chloride (Cl^-): ≤200 mg/kg
• 痕量阳离子: Ca: ≤50 mg/kg; Cd: ≤50 mg/kg; Co: ≤50 mg/kg; Cu: ≤50 mg/kg; Fe: ≤100 mg/kg; K: ≤100 mg/kg; Na: ≤200 mg/kg; Ni: ≤50 mg/kg; Pb: ≤50 mg/kg; Zn: ≤50 mg/kg
• SMILES字符串: O=[Si]=O
• InChI: 1S/O2Si/c1-3-2
• InChI key: VYPSYNLAJGMNEJ-UHFFFAOYSA-N

说明

一般描述

Silicon dioxide is one of the important constituents of sedimentary rock bauxite,[1] basalt fibers[2] and ceramic fibers.[3] It is added to cement for improving the hydraulic properties of cement.[4]

may contain dark particles

应用

Silicon dioxide may be employed in the preparation of calcium silicide.[5]

安全信息

• 储存分类代码: 11 - Combustible Solids
• WGK: nwg
• 闪点(°F): Not applicable
• 闪点(°C): Not applicable