634867
Silicon dioxide
single crystal substrate, optical grade, 99.99% trace metals basis, L × W × thickness 10 mm × 10 mm × 0.5 mm
Synonym(s):
Cristobalite, Quartz, Sand, Silica
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About This Item
Linear Formula:
SiO2
CAS Number:
Molecular Weight:
60.08
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12352303
EC Number:
262-373-8
MDL number:
grade
optical grade
Quality Level
assay
99.99% trace metals basis
form
solid
hardness
7.0 mohs
greener alternative product characteristics
Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.
sustainability
Greener Alternative Product
L × W × thickness
10 mm × 10 mm × 0.5 mm
refractive index
n20/D 1.544 (lit.)
mp
1610 °C (lit.)
transition temp
Tm 573.1 °C (phase change)
density
2.6 g/mL at 25 °C (lit.), 2.684 g/mL
greener alternative category
SMILES string
O=[Si]=O
InChI
1S/O2Si/c1-3-2
InChI key
VYPSYNLAJGMNEJ-UHFFFAOYSA-N
General description
We are committed to bringing you Greener Alternative Products that adhere to one of the four categories of Greener Alternatives. This product is an enabling product used for deposition in photovoltaic devices, enhancing their design and structure to promote energy efficiency. Click here for more information.
Application
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
Features and Benefits
An excellent substrate for microwave filters for applications in the wireless communication arena.
Physical form
Crystalline, hexagonal (a = 4.914 Å, c = 5.405 Å)
Other Notes
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%
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Storage Class
13 - Non Combustible Solids
wgk
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
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Exciton diffusion measurements in poly (3-hexylthiophene).
Shaw PE, et al.
Advanced Materials, 20(18), 3516-3520 (2008)
Oxygen-aided synthesis of polycrystalline graphene on silicon dioxide substrates.
Chen J, et al.
Journal of the American Chemical Society, 133(44), 17548-17551 (2011)
Measurement of the adhesion force between carbon nanotubes and a silicon dioxide substrate.
Whittaker JD, et al.
Nano Letters, 6(5), 953-957 (2006)