The maximum temperature for a porcelain crucible is up to 1050°C (1922°F) according to the reference.
Porcelain crucibles are made of high-temperature resistant materials and are commonly used in laboratories for gravimetric chemical analysis.
They are relatively cheap and can be disposed of after use in precise quantitative chemical analysis.
However, it is important to note that there are other types of crucibles, such as alumina ceramic crucibles, that can withstand higher temperatures.
4 Key Points About Crucible Temperatures
1. Porcelain Crucibles
Porcelain crucibles can withstand temperatures up to 1050°C (1922°F).
These crucibles are ideal for gravimetric chemical analysis in laboratories.
2. Alumina Ceramic Crucibles
Alumina ceramic crucibles can withstand temperatures up to 1400℃ for short-term use.
They can also handle up to 1200℃ for melting samples with acidic substances.
It is crucial to keep alumina ceramic crucibles away from hydrofluoric acid (HFA).
3. Carbon-Bonded and Ceramic-Bonded Clay Graphite Crucibles
These crucibles are suitable for melting and holding various metals and alloys.
They have a temperature range from 400°C/750°F to 1600°C/2912°F.
4. Silicon Carbide Crucibles
Silicon carbide crucibles are also used for similar purposes as carbon-bonded and ceramic-bonded clay graphite crucibles.
They offer a wide temperature range suitable for various metal and alloy melting processes.
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