Merck
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634867

Sigma-Aldrich

Silicon dioxide

single crystal substrate, optical grade, 99.99% trace metals basis, L × W × thickness 10 mm × 10 mm × 0.5 mm

Synonym(s):
Quartz, Silica, Cristobalite, Sand
Linear Formula:
SiO2
CAS Number:
Molecular Weight:
60.08
Número EC:
Número MDL:
ID de substância PubChem:
NACRES:
NA.23

Nível de qualidade

100

grau

optical grade

teor

99.99% trace metals basis

forma

solid

dureza

7.0 mohs

C × L × espessura

10 mm × 10 mm × 0.5 mm

índice de refração

n20/D 1.544 (lit.)

pf

1610 °C (lit.)

temperatura de transição

Tm 573.1 °C (phase change)

densidade

2.6 g/mL at 25 °C (lit.)
2.684 g/mL

SMILES string

O=[Si]=O

InChI

1S/O2Si/c1-3-2

InChI key

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

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Aplicação

SiO2 is majorly used as a substrate material with excellent thermo-mechanical properties in a variety of applications which include:
  • vapour deposition
  • phase deposition
  • atomic force microscopy probes(AFM)
  • spin coating
  • electronic based devices

Embalagem

5 ea in padded box

Características e benefícios

An excellent substrate for microwave filters for applications in the wireless communication arena.

forma física

Crystalline, hexagonal (a = 4.914 Å, c = 5.405 Å)

Outras notas

specific heat = 0.18 cal/g; thermoelectric constant = 1200μV/°C @ 300 °C; thermal conductivity = 0.0033 cal/cm°C; themal expansion (x10-6) = α11: 13.71, α33: 7.48; Q value = 1.8 × 106 min; acoustic velocity, SAW = 3160 m/sec; frequency constant, BAW = 1661 kHz/mm; piezoelectric coupling = K2 BAW: 0.65%, SAW: 0.14%

Pictogramas

Exclamation markHealth hazard

Palavra indicadora

Warning

Frases de perigo

Declarações de precaução

Classificações de perigo

Eye Irrit. 2 - STOT RE 2 Inhalation - STOT SE 3

Órgãos-alvo

Lungs, Respiratory system

Código de classe de armazenamento

11 - Combustible Solids

WGK

nwg

Ponto de fulgor (ºF)

Not applicable

Ponto de fulgor (ºC)

Not applicable

Equipamento de proteção individual

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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