Specifications:
| Application | Analytical Chemistry | ||
| Storage Temperature | Ambient | ||
| Product Type | Laboratory Chemical | ||
| Product Brand | Thermo Fisher Scientific™ | ||
| Product Grade | Analytical grade | Formula | SiO₂ |
Thermo Scientific™ Quartz, Fine Wool 4 µm is a high-purity amorphous silica (SiO₂) fiber supplied as fine white wool with an approximate fiber diameter of 4 micrometers. It offers excellent thermal stability, chemical inertness, and electrical insulation properties, making it ideal for high-temperature filtration, catalyst support, sample preparation, and thermal insulation in laboratory and industrial settings.
Quartz wool is widely used as a filter plug in analytical instruments, such as gas chromatography columns, and in trace metal and environmental testing where low contamination is critical.
Chemical Information
| Property | Details |
|---|---|
| Chemical Name | Quartz (Silicon Dioxide) |
| Synonyms | Silicium dioxide, Silicium(IV) oxide, Silicon dioxide, Sand, White quartz |
| Chemical Formula | SiO₂ |
| Molecular Weight | 60.08 g/mol |
| CAS Number | 14808-60-7 |
| MDL Number | MFCD00217788 |
| Storage Temperature | Ambient |
| Hazard Classification | Health Hazard (Inhalation of fine fibers) |
Physical and Chemical Properties
| Property | Value |
|---|---|
| Appearance | White fibrous material (fine wool) |
| Fiber Diameter | ~4 µm |
| Density | ~2.65 g/cm³ (theoretical) |
| Melting Point | ~1713 °C |
| Solubility | Insoluble in water and most acids |
| Thermal Stability | Excellent (up to 1000 °C continuous) |
| Chemical Stability | Resistant to most reagents except HF |
| Odor | Odorless |
Applications
- Filtration material for trace element and particulate analysis.
- Column packing or plug material in gas chromatography and chemical analysis.
- Thermal insulation for furnaces, reactors, and analytical instruments.
- Catalyst support and spacer in high-temperature systems.
- Sample separation medium in chemical and environmental testing.
- Absorbent material in analytical and trace-metal procedures.
Safety and Handling
Hazard Statements:
- Prolonged inhalation of fine quartz fibers may cause respiratory irritation.
- Use appropriate respiratory protection when handling in dusty environments.
Precautions:
- Handle in a fume hood or well-ventilated area.
- Avoid generating dust.
- Use gloves, protective eyewear, and lab coat.
Storage:
- Store at ambient temperature in tightly closed glass containers.
- Keep dry and free from mechanical stress.
Packaging and Ordering Information
| Catalog Number | Packaging Type | Pack Size | Container |
|---|---|---|---|
| 451040100 | Glass bottle | 10 g | For solids |
| 451040500 | Glass bottle | 50 g | For solids |
Thermo Scientific™ Quartz, Fine Wool 4 µm provides high-purity silicon dioxide fibers with excellent thermal, chemical, and mechanical properties for a wide range of analytical, laboratory, and industrial applications. Its fine fibrous form ensures superior performance in filtration, insulation, and chromatographic processes, meeting the high standards expected for precision laboratory work.
- Pack Size: 10g 50g
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