634867
二氧化硅
single crystal substrate, optical grade, 99.99% trace metals basis, L × W × thickness 10 mm × 10 mm × 0.5 mm
别名:
方石英, 石英, 砂石, 硅石
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关于此项目
线性分子式:
SiO2
化学文摘社编号:
分子量:
60.08
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12352303
EC Number:
262-373-8
MDL number:
grade
optical grade
Quality Segment
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因其绝佳的热机械性能而作为基质材料用于一系列的应用，包括：
- 气相沉积
- 相沉积
- 原子力显微镜探针（AFM）
- 旋涂
- 电子设备
Features and Benefits
应用于无线通信领域的微波滤波器的出色基片。
Physical form
六角形结晶（a = 4.914 Å, c = 5.405 Å）
Other Notes
比热 = 0.18 cal/g；热电常数 = 1200μV/°C @ 300 °C；热导率 = 0.0033 cal/cm°C；热膨胀 (x10-6) = α；11: 13.71, α33: 7.48；Q值 = 1.8 × 106 min；音速，SAW = 3160 m/sec; 频率常数，BAW = 1661 kHz/mm；压电耦合 = K2 BAW: 0.65%, SAW: 0.14%
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存储类别
13 - Non Combustible Solids
wgk
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves