QUARTZ CRUCIBLE
Quartz Crucible
Main Highlights
- Material – Fused Quartz
- Standard Operating Temperature ~1150 Degree C (Continuous Usage)
- Standard Operating Temperature ~1250 Degree C (Non-Continuous Usage)
- Specific surface area – 720 J/kg-k
- Purity – 99.99%
- Poisson’s ratio – 0.17
- Refractive index – 1.5
- Tensile strength – 50 MPa (Optimal)
- Thermal conductivity – 1.38 W/m-k
- Coefficient Of Thermal Expansion – 0.55(106/0C)
- Dielectric strength – 30 Ac-kV/mm (volts/mil)
- Dielectric constant – 3.82 @1MHz
| Quartz Crucible with Lid (Purity-99.99%) | Maximum Operating Temperature 1200c | |||||
|---|---|---|---|---|---|
| Product Code | Description | Size | Buy Now | ||
| Crucible With Lid | With Lid | 15ML | 25ML | 50ML | 80ML | 100ML | 150ML | 200ML | 250ML | 500ML | 1000ML | BUY NOW | ||
| Quartz Crucible Without Lid (Purity-99.99%) | Maximum Operating Temperature 1200c | |||||
|---|---|---|---|---|---|
| Product Code | Description | Size | Buy Now | ||
| Crucible Without Lid | Without Lid | 15ML | 25ML | 50ML | 80ML | 100ML | 150ML | 200ML | 250ML | 500ML | 1000ML | BUY NOW | ||
Description and Specifications of Quartz Crucible
The QC (Quartz-crucible) of high purity Silica (SiO2) material, is a transparent container which is resistant to extremely high temperatures as well as being chemically inert to get non-contaminated results. These vessels should also be ideally resilient to thermal shocks.
The QC (Quartz-crucible) are acting as vessels for holding chemicals as the specific thermal or chemical process performed. These are efficient for use as laboratory crucible as well as in industrial applications. These have increasingly replaced the conventional Rotosil crucibles, which were earlier more prominently used in industrial and research applications.
The QC (Quartz-crucible) comes with a lid and without the lid or cap as per requirement. The capacity of it varies from 5ml to 1000ml. There is two main type of the quartz crucible, one is the low form (Curvy Shape), and another is tall form (Cylindrical Shape) crucible. The researched can operate it efficiently at around 1150 degree Celsius.
Features
- Highest chemical purity
- Extreme durability
- High Material Purity
- Higher Annealing point
- Remarkably corrosion resistance
- Lower coefficient of thermal expansion
- Excellent electrical conductivity levels
- Efficient optical transmission range
Quartz Crucible vs Alumina, Graphite & Porcelain Crucibles
Quartz crucibles are preferred for high-purity laboratory, semiconductor, and crystal-growth applications due to their exceptional thermal shock resistance, low contamination risk, and chemical purity. Compared to alumina, graphite, and porcelain crucibles, quartz crucibles provide superior transparency and are ideal for processes where sample purity and chemical stability are critical.
| Parameter | Quartz Crucible | Alumina Crucible | Graphite Crucible | Porcelain Crucible |
|---|---|---|---|---|
| Material Composition | High-Purity Fused Quartz (SiO₂) | Aluminum Oxide (Al₂O₃) | Graphite Carbon | Ceramic Porcelain |
| Maximum Operating Temperature | ~1200°C | ~1700°C | ~3000°C (Inert Atmosphere) | ~1000°C |
| Thermal Shock Resistance | Excellent | Good | Excellent | Moderate |
| Chemical Purity | Very High | High | Moderate | Moderate |
| Resistance to Acids | Excellent (Except HF) | Good | Poor | Moderate |
| Resistance to Alkalis | Limited | Good | Good | Moderate |
| Transparency | Transparent | Opaque | Opaque | Opaque |
| Contamination Risk | Very Low | Low | Moderate | Moderate |
| Electrical Conductivity | Insulating | Insulating | Conductive | Insulating |
| Semiconductor Applications | Excellent | Limited | Not Preferred | Not Suitable |
| Optical Applications | Excellent | Not Suitable | Not Suitable | Not Suitable |
| Laboratory Analysis | Excellent | Excellent | Good | Good |
| Typical Applications | Semiconductor Processing, Crystal Growth, Chemical Analysis, High-Purity Research | High-Temperature Furnaces, Material Synthesis, Thermal Processing | Metal Melting, Casting, Precious Metals Processing | General Laboratory Heating and Ashing |
| Relative Cost | Moderate to High | Moderate | Moderate | Economical |
Why Choose a Quartz Crucible?
- Manufactured from high-purity fused quartz (SiO₂)
- Excellent resistance to thermal shock and rapid temperature changes
- Very low contamination risk for sensitive samples
- Suitable for semiconductor and crystal-growth applications
- High resistance to most acids except hydrofluoric acid (HF)
- Transparent construction allows visual observation of samples
- Ideal for analytical chemistry, material science, and research laboratories
Applications of Quartz Crucible
- Refining precious metal and special alloys
- Smelting industry
- Lamp-manufacturing sector
- Alumina calcinations
- Various chemical industrial applications
- R & D laboratory uses
- Educational Institutes
- Rare earth production
Why Techinstro?
Techinstro is a leading manufacturer and supplier, offers these cost-effective products in a variety of compositions, coatings, and designs, according to customer’s specifications. The company has been producing high-quality quartz crucible by following most stringent purity norms, to supply industries with efficient and affordable equipment.
FAQ's
Fused Quartz
1250 °C (Non-Continuous Usage) and 1150 °C (Continuous Usage)
Smelting industry, R & D laboratory uses, and Educational Institutes
1.38 W/m-k
Extreme durability, corrosion resistance, and Higher Annealing point
Yes, it is available with lid as well as without lid