Quartz crucibles are high-quality containers used in laboratories for various high-temperature applications. They are made of pure quartz material, which has excellent thermal stability and resistance to chemical reactions. These crucibles are commonly used for melting or calcining substances, as well as for growing crystals.

Lab crucibles with lids are designed to provide a tight seal, preventing any contaminants from entering the crucible during heating or cooling processes. The lids also help to retain heat and minimize heat loss, ensuring efficient and controlled heating.

Some key features of quartz crucibles with lids include:

1. High-temperature resistance: Quartz crucibles can withstand temperatures up to 1,200°C (2,192°F), making them suitable for a wide range of high-temperature applications.

2. Chemical resistance: Quartz material is highly resistant to most chemicals, including acids and alkalis. This makes quartz crucibles ideal for handling corrosive substances.

3. Thermal stability: Quartz crucibles have excellent thermal stability, meaning they can withstand rapid temperature changes without cracking or breaking.

4. Optimal heat transfer: Quartz has low thermal conductivity, allowing for uniform heat distribution within the crucible. This ensures efficient and consistent heating of the sample.

5. Transparent: Quartz is transparent to visible light, allowing for easy observation of the sample during heating or processing.

6. Easy to clean: Quartz crucibles are non-porous and can be easily cleaned using common laboratory cleaning methods.

Quartz crucibles with lids are commonly used in various scientific fields, including chemistry, materials science, geology, and metallurgy. They are available in different sizes and shapes to accommodate different sample volumes and experimental setups.