Crucible With Lid

• High Wall Crucible

• Low Wall Crucible

• Medium Wall Crucible

Application

1. It can withstand high temperatures of up to 1200 degrees Celsius.

2. Suitable for molten samples of acidic substances such as K2S2O7.

3. It is generally not suitable for melting with alkaline substances such as NaOH, Na2O2, and Na2CO3 as fluxes to prevent corrosion of ceramic crucibles. Ceramic crucibles should not come into contact with hydrofluoric acid.

4. Porcelain crucibles can generally be washed by boiling with dilute HCl.

5. Porcelain crucibles can be divided into three types: medium wall crucible, low wall crucible, high wall crucible, plain crucible, volatile crucible, tight crucible, Roga crucible, double-layer crucible, Gucci crucible, fine hole crucible, infrared carbon sulfur crucible, free expansion coefficient crucible, etc.

6. Ceramics have water absorption properties. So in order to reduce errors, the crucible should be strictly dried before use and weighed on the analytical balance. Sometimes the analyte is filtered using ash free filter paper, and the filter paper is placed together in the crucible; This filter paper completely decomposes in a high-temperature environment and will not affect the results. After high-temperature treatment, dry and cool the crucible and its contents in a specially designed dryer before weighing. Use clean crucible pliers to grip the entire process.

Quality Control

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