Quartz Glass Test Tube with Round/Flat End

This quartz glass test tube is made from high-purity optical quartz, ideal for laboratory use. It offers excellent light transmission, especially in the UV spectrum, making it perfect for spectrophotometry and other optical experiments.

Round End: Features a flat bottom, allowing it to stand securely on a table for general lab work like mixing or holding samples.

Flat End: Designed with an optically clear flat bottom, it is suitable for direct insertion into analytical instruments.

Highly durable, it resists thermal shock (can handle high heat) and is chemically resistant to most acids and solvents. A reliable, reusable alternative to standard glass or plastic tubes for precise scientific testing.

It has an extremely low coefficient of thermal expansion (~5.5 x 10⁻⁷/K), granting exceptional resistance to thermal shock. Its softening point is above 1650°C, and it can be used continuously at 1100°C. Quartz glass is highly transparent across a broad spectrum, from deep ultraviolet (UV) to near-infrared (IR). It possesses high dielectric strength and excellent electrical insulation properties even at elevated temperatures.

The material is chemically inert to most substances. It has outstanding resistance to weathering and demonstrates low reactivity with acids (except hydrofluoric and hot phosphoric acid) and molten metals. Its high purity results in minimal contamination in sensitive processes. However, it is susceptible to devitrification (crystallization) at prolonged high temperatures, which can degrade its thermal and optical performance.