Quartz Tube
Quartz Plate
Quartz Rod
Optical Applications
Semiconductor Industry
Laboratory and Chemical Applications
Our specialized quartz ground joint test tubes are engineered for demanding laboratory and industrial applications. Crafted from ultra-high purity fused silica, they withstand temperatures up to 1200°C and offer superior chemical and corrosion resistance. Featuring standard frosted taper joints, these tubes ensure strong, precise sealing, making them ideal for high-temperature reactions, vacuum applications, inert atmosphere experiments, and handling corrosive substances. Custom sizes and designs are available to meet your specific requirements.
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.
| Item No. | Product Name | Specification |
|---|---|---|
| 1 | Quartz Reaction Tube, 5ml, ST 19 Joint | OD 22mm x 70mm |
| 2 | Quartz Reaction Tube, 5ml, ST 14 Joint | OD 16mm x 100mm |
| 3 | Quartz Reaction Tube, 10ml, ST 19 Joint | OD 22mm x 100mm |
| 4 | Quartz Reaction Tube, 15ml, ST 14 Joint | OD 18mm x 160mm |
| 5 | Quartz Reaction Tube, 15ml, ST 19 Joint | OD 18mm x 150mm |
| 6 | Quartz Reaction Tube, 25ml, ST 14 Joint | OD 22mm x 125mm |
| 7 | Quartz Reaction Tube, 25ml, ST 19 Joint | OD 22mm x 125mm |
| 8 | Quartz Reaction Tube, 25ml, ST 24 Joint | OD 22mm x 125mm |
| 9 | Quartz Reaction Tube, 30ml, ST 14 Joint | OD 22mm x 155mm |
| 10 | Quartz Reaction Tube, 30ml, ST 19 Joint | OD 25mm x 150mm |
| 11 | Quartz Reaction Tube, 50ml, ST 14 Joint | OD 22mm x 225mm |
| 12 | Quartz Reaction Tube, 50ml, ST 19 Joint | OD 30mm x 150mm |
| 13 | Quartz Reaction Tube, 50ml, ST 19 Joint | OD 25mm x 200mm |
| 14 | Quartz Reaction Tube, 50ml, ST 19 Joint | OD 22mm x 225mm |
| 15 | Quartz Reaction Tube, 50ml, ST 29 Joint | OD 35mm x 130mm |
| 16 | Quartz Reaction Tube, 100ml, ST 19 Joint | OD 30mm x 220mm |
| 17 | Quartz Reaction Tube, 100ml, ST 29 Joint | OD 35mm x 220mm |
| 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 Resistance
Capable of withstanding continuous temperatures up to 1200°C (2192°F), making them suitable for extreme thermal processes, high-temperature reactions, and applications where ordinary glassware would fail.
Exceptional Purity & Chemical Resistance
Constructed from high-purity quartz (SiO2 ≥ 99.99%), ensuring no contamination of reactive substances. It offers superior resistance to most acids and alkalis, making it ideal for highly corrosive or contamination-sensitive experimental conditions.
High Light Transmittance
Exhibits excellent optical properties, allowing high light transmission across a broad spectrum from ultraviolet (UV) to infrared (IR) wavelengths. This makes them ideal for various optical experiments, spectrophotometry, and photochemistry where light interaction with the sample is essential.
Superior Sealing Performance
Features precisely engineered standard frosted ground joints that provide a strong, airtight seal when paired with matching stoppers or other ground joint apparatus. This ensures excellent containment for vacuum, inert atmosphere, or pressure-sensitive experiments.
Application Scenario
High-Temperature Chemical Synthesis and Reactions
They are indispensable in organic and inorganic chemistry labs for reactions requiring precise temperature control at elevated levels, often under vacuum or inert gas. The high thermal resistance allows for syntheses that regular glass cannot accommodate, while the ground joint ensures a closed and controlled reaction environment.
Vacuum and Inert Atmosphere Experiments
The precision-ground joints provide excellent sealing capabilities, making these test tubes ideal for experiments that demand vacuum conditions or a strictly controlled inert atmosphere (e.g., nitrogen, argon). This is crucial for air-sensitive compounds, materials science research, and preventing oxidation during heating processes.
Spectrophotometry and Photochemistry
Benefiting from quartz’s high light transmittance across UV, visible, and IR spectra, these tubes are perfect for spectroscopic analysis (e.g., UV-Vis spectroscopy) where sample purity and optical clarity are paramount. They are also used in photochemical reactions where specific wavelengths of light are needed to initiate or monitor processes.
Handling Corrosive or High-Purity Substances
Due to quartz’s exceptional chemical inertness and high purity, these tubes are the preferred choice for storing, mixing, or reacting with strong acids, bases, or highly reactive chemicals that would degrade or contaminate standard borosilicate glass. They are also used in applications requiring ultra-high purity, such as trace analysis or semiconductor material preparation.
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.
Yes, our quartz ground joint test tubes feature standard taper ground joints. This ensures high compatibility with a wide range of standard laboratory glassware, stoppers, and apparatus, allowing for seamless integration into your existing experimental setups.
Quartz offers several key advantages over borosilicate glass, including significantly higher operating temperatures (up to 1200°C), superior chemical inertness to a broader range of corrosive substances, excellent light transmission from UV to IR wavelengths, and much lower thermal expansion, which provides greater resistance to thermal shock. These properties ensure enhanced durability, purity, and performance for demanding applications.
Absolutely. The precisely manufactured ground joints provide a strong, airtight seal, making them ideal for high-vacuum (HV) applications and experiments requiring an inert atmosphere. Furthermore, the ultra-high purity of the quartz glass minimizes contamination risks, making these tubes perfectly suited for handling sensitive chemicals, high-purity materials, and trace analysis.
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.
