84880

Silicon dioxide

purum p.a., acid purified

• 동의어(들): Cristobalite, Quartz, Sand, Silica
• Linear Formula: SiO₂
• CAS Number: 60676-86-0
• Molecular Weight: 60.08
• MDL number: MFCD00011232
• UNSPSC 코드: 12352303
• PubChem Substance ID: 329769325
• NACRES: NA.21

속성

• grade: purum p.a.
• Quality Level: 100
• 양식: powder or crystals
• 품질: acid purified
• 손실: ≤0.1% loss on ignition
• refractive index: n20/D 1.544 (lit.)
• 입자 크기: 40-200 mesh
• mp: 1610 °C (lit.)
• density: 2.6 g/mL at 25 °C (lit.)
• 음이온 미량물: chloride (Cl^-): ≤200 mg/kg
• 양이온 미량물: 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 string: O=[Si]=O
• InChI: 1S/O2Si/c1-3-2
• InChI key: VYPSYNLAJGMNEJ-UHFFFAOYSA-N

설명

일반 설명

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

애플리케이션

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

안전성 정보

• Storage Class Code: 11 - Combustible Solids
• WGK: nwg
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable