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號碼: MFCD00011232
• 分類程式碼代碼: 12352303
• PubChem物質ID: 329769325
• NACRES: NA.21

属性

• 等級: purum p.a.
• 形狀: powder or crystals
• 品質: acid purified
• 損耗: ≤0.1% loss on ignition
• 折射率: n20/D 1.544 (lit.)
• 粒徑: 40-200 mesh
• mp: 1610 °C (lit.)
• 密度: 2.6 g/mL at 25 °C (lit.)
• 負離子痕跡: chloride (Cl^-): ≤200 mg/kg
• 正離子痕跡: 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 字串: O=[Si]=O
• InChI: 1S/O2Si/c1-3-2
• InChI 密鑰: VYPSYNLAJGMNEJ-UHFFFAOYSA-N

说明

一般說明

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

may contain dark particles

應用

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

安全信息

• 儲存類別代碼: 11 - Combustible Solids
• 水污染物質分類（WGK）: nwg
• 閃點（°F）: Not applicable
• 閃點（°C）: Not applicable