Fused Silica
- CAS No.
- 60676-86-0
- Chemical Name:
- Fused Silica
- Synonyms
- KIESELGUHR;SILICONE DIOXIDE;CELITE 545;HYFLO;MICROSILICA;fused;Fused silica;KIESELGEL;KIESELGUR;FILTER AGENT
- CBNumber:
- CB00126334
- Molecular Formula:
- O2Si
- Molecular Weight:
- 60.0843
- MDL Number:
- MFCD01778719
- MOL File:
- 60676-86-0.mol
| Melting point | 1610 °C(lit.) |
|---|---|
| Boiling point | 2950°C |
| Density | 2.6 g/mL at 25 °C(lit.) |
| refractive index |
n |
| solubility | insoluble in H2O, acid solutions; soluble in HF |
| form | rod (1/8") |
| CAS DataBase Reference | 60676-86-0 |
| NIST Chemistry Reference | Silicon dioxide(60676-86-0) |
| EPA Substance Registry System | Silica vitreous (60676-86-0) |
| Modulus of Elasticity | 70.0 - 78.0 GPa |
|---|---|
| Poissons Ratio | 0.17 |
| Shear Modulus | 31.0 GPa |
| Hardness, Mohs | 5.5 - 7.0 |
| Hardness, Knoop | 820 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS07,GHS08 |
|---|---|
| Signal word | Warning |
| Hazard statements | H319-H335-H373 |
| Precautionary statements | P305+P351+P338-P314 |
| Hazard Codes | T,Xn |
| Risk Statements | 48/20-36/38-45-36/37 |
| Safety Statements | 22-24/25-45-26-53-36 |
| WGK Germany | 2 |
| RTECS | VV7311000 |
| HS Code | 28112200 |
| Toxicity | LDLo intravenous in cat: 5mg/kg |
Fused Silica price More Price(30)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | CX0574 | Celite® 545 | 60676-86-0 | 500g | $50.8 | 2024-03-01 | Buy |
| Sigma-Aldrich | CX0574 | Celite® 545 | 60676-86-0 | 2.5kg | $92.4 | 2024-03-01 | Buy |
| Sigma-Aldrich | CX0574 | Celite® 545 | 60676-86-0 | 12kg | $357 | 2024-03-01 | Buy |
| Sigma-Aldrich | BR74511 | BRAND® filter funnel support with base plate for 4 funnels | 1EA | $259 | 2024-03-01 | Buy | |
| Sigma-Aldrich | 914150 | Silica dioxide- sorbent milled nanofiber | 60676-86-0 | 5G | $225 | 2024-03-01 | Buy |
Fused Silica Chemical Properties,Uses,Production
Description
Fused silica is a noncrystalline (glass) form of silicon dioxide (quartz, sand). Typical of glasses, it lacks long range order in its atomic structure. It's highly cross linked three dimensional structure gives rise to it's high use temperature and low thermal expansion coefficient.
Characteristics
High chemical purity and resistance
Exceptionally good thermal shock resistance
Can be lapped and polished to fine finishes
Low dielectric constant
Low dielectric loss
Good UV transparency
Uses
Fused silica (SiO2) has very low density, thermal expansion coefficient, electric conductivity, relatively high mechanical property, heat resistance, thermal-shock resistance, corrosion resistance, and dielectric constant, so it is extensively used in optical and optoelectronics devices, microwave dielectric materials, and refractory materials.
Preparation
Fused silica can made by melting some solid form of silica and cooling the melt sufficiently fast to avoid crystallization. A quite high temperature around 1650 to 1700 °C is needed – far above the glass transition temperature of many common optical glasses. The required heat can be provided by an electrically heated furnace or by a flame (Verneuille process) obtained with some combustion gas mixed with pure oxygen.
Forms and nomenclature
Fused silica is sometimes called fused quartz or quartz glass. However, it should be kept in mind that it is an amorphous material, while quartz is crystalline.
Fused Silica Preparation Products And Raw materials
Raw materials
Preparation Products
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| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Wuhan Han Sheng New Material Technology Co.，Ltd | +8617798174412 | admin01@hsnm.com.cn | China | 2118 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21689 | 55 |
| Shanghai Zheyan Biotech Co., Ltd. | 18017610038 | zheyansh@163.com | CHINA | 3620 | 58 |
| career henan chemical co | +86-0371-86658258 15093356674; | factory@coreychem.com | China | 29826 | 58 |
| Hubei Ipure Biology Co., Ltd | +8613367258412 | ada@ipurechemical.com | China | 10326 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | 0551-65418671 | sales@tnjchem.com | China | 34572 | 58 |
| HONG KONG IPURE BIOLOGY CO.,LIMITED | 86 18062405514 18062405514 | ada@ipurechemical.com | CHINA | 3465 | 58 |
| ANHUI WITOP BIOTECH CO., LTD | +8615255079626 | eric@witopchemical.com | China | 23556 | 58 |
| Henan Alfa Chemical Co., Ltd | +8618339805032 | alfa4@alfachem.cn | China | 12975 | 58 |
| Alfa Chemistry | +1-5166625404 | Info@alfa-chemistry.com | United States | 21317 | 58 |
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- Jan 9，2024
View Lastest Price from Fused Silica manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2021-10-19 | SILICA
10279-57-9
|
US $10.00 / KG | 1KG | 99% | 20 tons | Hebei Zhanyao Biotechnology Co. Ltd | |
 |
2019-07-06 | SILICA
10279-57-9
|
US $2.00 / kg | 1kg | 99% | ask | Career Henan Chemical Co | |
 |
2019-07-06 | SILICA
14464-46-1
|
US $1.00 / KG | 1KG | 98% | 1kg,5kg,100kg | Career Henan Chemical Co |