Merck
All Photos(1)

84880

Sigma-Aldrich

Silicon dioxide

purum p.a., acid purified

Synonym(s):
Quartz, Silica, Cristobalite, Sand
Linear Formula:
SiO2
CAS Number:
Molecular Weight:
60.08
Número MDL:
ID de substância PubChem:

Nível de qualidade

100

grau

purum p.a.

forma

powder or crystals

qualidade

acid purified

perda

≤0.1% loss on ignition

índice de refração

n20/D 1.544 (lit.)

tamanho de partícula

40-200 mesh

pf

1610 °C (lit.)

densidade

2.6 g/mL at 25 °C (lit.)

traços de ânion

chloride (Cl-): ≤200 mg/kg

traços de cátion

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

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Descrição geral

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

Aplicação

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

Código de classe de armazenamento

13 - Non Combustible Solids

WGK

nwg

Ponto de fulgor (ºF)

Not applicable

Ponto de fulgor (ºC)

Not applicable

Certificate of Analysis

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Certificate of Origin

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