84878

Silicon dioxide

purum p.a., acid purified, sand

• 동의어(들): Cristobalite, Quartz, Sand, Silica
• Linear Formula: SiO₂
• CAS Number: 60676-86-0
• Molecular Weight: 60.08
• EC Number: 238-878-4
• MDL number: MFCD00011232
• UNSPSC 코드: 12352303
• PubChem Substance ID: 329769324

속성

• grade: purum p.a.
• Quality Level: 200
• 양식: sand
• 품질: acid purified
• 손실: ≤0.1% loss on ignition, 900 °C
• refractive index: n20/D 1.544 (lit.)
• 입자 크기: 40-150 mesh
• mp: 1610 °C (lit.)
• density: 2.6 g/mL at 25 °C (lit.)
• 음이온 미량물: chloride (Cl^-): ≤100 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: ≤500 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.

애플리케이션

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

주의사항

may contain dark particles

분석 메모

metal and chloride traces refer to acid-soluble parts

안전성 정보

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