Laboratory Equipment

Alumina crucible (alumina ceramic crucible). Often used in TGA experiments.
A. It is relatively stable for most samples and does not react with the sample.
B. In the range of room temperature to 1650°C, the alumina crucible has no thermal reaction.
C. The melting point of alumina crucible exceeds 1700°C and can be reused, but the cleaning process is a bit troublesome.

Features of alumina ceramic crucible:
A. Heat resistance is about 1600 degrees, suitable for smelting samples of acidic materials such as K2S207.
B. Generally, alkaline materials such as NaOH, Na2O2, Na2CO3 etc. cannot be used as a flux for smelting, so as not to corrode the porcelain crucible.
C. Porcelain crucible must not come into contact with hydrofluoric acid.

Advantages of alumina ceramic crucible:
(1) Easy to clean and keep clean. The ceramic crucible has a bright and delicate glazed surface.
(2) There are few porcelain holes and low water absorption. The solution is stored in a sealed ceramic crucible to prevent the evaporation, penetration and intrusion of foreign bacteria.
(3) Stable chemical properties and durability. This is better than copper, iron, aluminum and other metal products.