One End Sealed Quartz Tube OD25xID21xL130mm High Purity For Tube Furnace Sample Holder Bubbler Chemical Reactor

One End Sealed Quartz Tube OD25*ID21*L130mm

This one end sealed quartz tube, sized OD25*ID21*L130mm with 2mm wall thickness, features an integrally fused closed end for excellent air tightness. Manufactured from high purity quartz, it delivers 1100°C heat resistance and superior HF/strong acid chemical durability—ideal for tube furnace sample holders, gas bubbler containers, sealed chemical reactors and semiconductor precursor vessels.

Product Parameters

Key Features

• Integrally Fused Sealed End – One end permanently fused closed during manufacturing, ensuring 100% air tightness with no risk of leakage at the seal point during high-temperature operation.
• 1100°C Heat Resistance – Maintains structural integrity at sustained high temperatures for tube furnace calcination and sintering applications without deformation or softening.
• HF & Strong Chemical Resistance – Superior to borosilicate glass, withstands hydrofluoric acid and concentrated acids/alkalis for sealed corrosive reaction environments.
• High Purity, No Contamination – 99.99% pure quartz with zero ion precipitation, preventing sample contamination in semiconductor and high-purity chemical processing.
• Uniform Wall Thickness – Consistent 2mm wall thickness ensures even heat distribution and reliable mechanical strength under thermal cycling conditions.

Applications

1. Tube Furnace Sample Holder

High-temperature calcination container for powder samples, enabling sealed sintering under protective gas atmosphere with the closed end preventing sample loss and gas leakage.

2. Gas Bubbler Device

Carrier gas bubbling liquid reservoir for precursor vaporization and reagent humidification, with the sealed end forming the bottom of the bubbler chamber for reliable gas-liquid contact.

3. Chemical Laboratory Reactor

Sealed reaction vessel for strong corrosive reagent experiments, with full HF resistance allowing extended-contact chemical processing that would destroy standard glass containers.

4. Semiconductor Processing

High-purity raw material dispensing container and small-scale CVD gas source vessel, with zero ion precipitation protecting semiconductor-grade material purity.

Advantages over Borosilicate Glass

Compared to borosilicate glass sealed tubes, this quartz tube offers full HF acid resistance, sustained 1100°C operation, integrally fused sealed end with no adhesive or joint that could leak, and excellent thermal shock resistance against cracking under rapid temperature changes—making it the superior choice for high-temperature sealed chemical and semiconductor applications.