Quartz Tube
Quartz Plate
Quartz Rod
Optical Applications
Semiconductor Industry
Laboratory and Chemical Applications
Our quartz double-necked flasks are meticulously crafted from high-purity fused silica (SiO2 ≥ 99.99%), designed for complex and demanding chemical reactions. These robust flasks offer exceptional heat resistance up to 1200°C (stable 1100°C, flash 1450°C) and superior resistance to most acids (excluding HF and hot phosphoric acid). Their multi-neck design allows for simultaneous addition of reagents, stirring, and refluxing, ensuring precise control over reactions. Optically clear for visual monitoring, with standard ground joints and firm, solid construction, they are also fully customizable in shape and specifications to meet your unique research and industrial needs.
Remarks：
- ayment method: By wire transfer or advance payment, depending on the quantity of the order.
- Delivery time: According to the order quantity.
- Transportation method: Sea freight or air freight, depending on the customer.
| capacity (ml) | caliber |
|---|---|
| 25ml | 19*2 |
| 50ml | 19*2 |
| 50ml | 24*2 |
| 100ml | 19*2 |
| 100ml | 24*2 |
| 150ml | 24*2 |
| 250ml | 24*2 |
| 500ml | 24*2 |
| 1000ml | 24*2 |
| 2000ml | 24*2 |
| Property Content | Property Values |
|---|---|
| SiO2 | 99.99% |
| Density | 2.2×10³ kg/cm³ |
| Hardness | 5.5 - 6.5 Mohs' Scale 570 KHN 100 |
| Tensile Strength | 4.8×10⁷ Pa (N/mm2) (7000 psi) |
| Compression Strength | >1.1×10⁹ Pa (160,000 psi) |
| Coefficient of Thermal Expansion | 5.5×10⁻⁷ cm/cm·°C (20°C-320°C) |
| Thermal Conductivity | 1.4 W/m·°C |
| Specific Heat | 670 J/kg·°C |
| Softening Point | 1730°C (3146°F) |
| Annealing Point | 1210°C (2210°F) |
| Strain Point | 1120°C (2048°F) |
| Work Temperature | 1200°C (2192°F) |
| Electrical Resistivity | 7×10⁷ ohm cm (350°C) |
| Size | Customized |
| Logo | Customized Logo Accept |
Exceptional High-Temperature & Chemical Resistance
Crafted from high-purity quartz, these flasks can stably withstand temperatures up to 1200°C (flash to 1450°C) and exhibit superior inertness to most acids (excluding HF and hot phosphoric acid) and alkalis, making them indispensable for demanding chemical reactions and processes.
High Purity & Non-Contaminating Properties
Made from 99.99% pure fused silica, these flasks ensure minimal leaching of impurities. This is critical for high-purity synthesis, analytical chemistry, and pharmaceutical applications where sample integrity and prevention of contamination are paramount.
Excellent Optical Transparency & Robust Construction
Their optically clear nature allows for precise visual monitoring of reaction progress. Coupled with a firm, solid build and robust welds, these flasks are designed for durability and provide secure, reliable connections to other ground joint apparatus, ensuring safety and longevity in the lab.
Versatile Multi-Port Design for Complex Reactions
The dual-neck configuration, and capability for multi-shape customization, allows for simultaneous operations such as adding reagents, mechanical stirring, refluxing, or thermometry. This enhances experimental flexibility and control for complex multi-step chemical syntheses.
Application Scenario
Complex Multi-Step Chemical Synthesis
Ideal for advanced organic and inorganic reactions requiring multiple simultaneous operations, such as adding reagents through one neck while refluxing, stirring, or monitoring temperature through another, especially under high-temperature or corrosive conditions.
High-Temperature Distillation and Reflux Setups
Used for precise distillation of high-boiling point solvents or refluxing reaction mixtures at elevated temperatures. The second neck provides an essential port for a thermometer, a dropping funnel for reagent addition, or an inert gas inlet, ensuring controlled and efficient processes.
Reactions under Inert Atmosphere or Vacuum
Critical for handling air-sensitive or moisture-sensitive compounds. One neck can be used for inert gas purging (e.g., nitrogen or argon) or vacuum connection, while the other facilitates reagent addition or mechanical stirring within a controlled environment.
Materials Science and Catalysis Research
Employed in specialized research for synthesizing or characterizing new materials, particularly those requiring reactions at high temperatures, with corrosive precursors, or under precisely controlled atmospheric conditions, leveraging quartz’s purity and robustness.
Handle with care
Quartz glass products are made from valuable materials and must be handled gently to avoid collisions and falls.
Regular maintenance
The maintenance of quartz tubes must be performed regularly to ensure their long-term stable performance. Regularly check the connections, fixings, and mechanical vibrations of the quartz tubes to prevent abnormalities. The exterior of the quartz tubes is prone to contamination from dust and moisture, so they should be cleaned regularly.
Storage environmen
When storing quartz tubes, care should be taken to avoid exposure to mechanical vibrations, shocks, and excessively high temperatures. They should be kept in a dry, cool, and well-ventilated place, avoiding direct sunlight and high-temperature environments.
The primary advantage of a double-necked quartz flask is its increased versatility and functionality. It allows for multiple operations to be performed simultaneously within a single reaction vessel, such as heating/refluxing through one neck while adding reagents, stirring, or monitoring temperature through the second neck. This simplifies complex reactions and setups, especially those requiring precise control in high-temperature or inert environments.
Yes, mechanical stirrers can be effectively used with a quartz double-necked flask, typically through one of the ground joints (usually the larger, central one if sizes vary). When setting up, ensure the stirrer shaft is properly aligned to avoid contact with the flask walls. Given the high temperatures quartz can withstand, selecting a stirrer with a compatible high-temperature shaft and sealing mechanism is crucial to maintain system integrity and prevent leaks.
Quartz double-necked flasks exhibit superior thermal shock resistance compared to borosilicate glass. This is due to quartz’s extremely low coefficient of thermal expansion, which minimizes internal stress during rapid temperature changes. They can safely undergo quick heating and cooling cycles, making them ideal for reactions that require precise temperature control or quenching, without the risk of cracking often associated with less robust glass types.
Laser Drilling of Quartz
Threaded Quartz Tube
External Thread on Quartz Tube
Internal Threaded Quartz Tube
Quartz Tube Slotted
Window on Quartz Tube
Angled Cut Quartz Tube
Quartz Tile
Quartz Tube with Window
Frequently asked questions
We specialize in the end-to-end manufacturing of high-purity quartz glass components. Our core product lines include:
Quartz Tubing & Rods: A wide range of diameters and specifications.
Quartz Plates & Discs: Precision-cut and polished for optical and industrial use.
Quartz Labware: A full suite of standard and custom glassware, including beakers, flasks, and boats.
Semiconductor-Grade Quartz: High-purity components like process tubes and carriers for semiconductor fabrication.
Custom Fabricated Components: We can produce complex parts tailored to your unique designs and specifications.
Yes. Custom fabrication is at the core of our business. With over a decade of specialized experience, we partner with companies to provide expert OEM/ODM services. Our capabilities include welding, grinding, drilling, polishing, bending, and other precision processing techniques to create components that meet your exact requirements.
Quality is paramount in our manufacturing process. We are an ISO 9001:2015 certified manufacturer, ensuring that our processes meet international quality management standards.Our products also undergo rigorous SGS testing for purity and performance. We use high-purity raw materials (up to 99.998% SiO2) to produce fused quartz and fused silica products with exceptional thermal stability, high-temperature resistance, and chemical inertness.
We've streamlined our process to be as efficient as possible:
Submit Your RFQ: Send us your technical drawings, specifications, and requirements via our website contact form or email.
Rapid Response: You can expect an initial response within minutes and detailed communication within half an hour.
Design & Proposal: We will deliver a detailed design proposal and a competitive quote within 24 hours.
Prototyping & Production: Upon approval, we move swiftly from prototyping to full-scale production to meet your deadlines.
Partnering with Aoxin Quartz offers several key advantages:
Proven Expertise: With 10+ years in the industry, we have the technical knowledge to tackle complex challenges.
One-Stop Solution: We manage the entire production process, from sourcing high-purity raw materials to fabricating and finishing complex components.
Competitive Value: Located in a major quartz production hub, we leverage an efficient supply chain and advanced manufacturing to offer exceptional quality at a competitive price point.
Dedicated Partnership: Over 90% of our clients become long-term partners. We are committed to your success through responsive service, reliable quality, and innovative solutions.
