Corundum crucible, I believe many people have read it, but many people don't know how to use the clamp pot. In fact, it has very good operation steps. Here are some tips for using the crucible.

Crucible is a stainless steel container or melting tank made of extremely fireproof and safe raw materials (such as clay, calcined petroleum coke, porcelain clay or metal composites that are difficult to melt). It is mainly used for evaporation, concentration or crystallization of solution and burning solid compounds.

Corundum crucible and its operation steps:

When there is solid to be heated with red explosion, try to use crucible. When the crucible is used, the crucible cover is generally placed obliquely on the crucible to prevent the heated objects from jumping out, and the air source water heater is allowed to enter and exit freely for possible redox reaction. Because the bottom of the corundum crucible is not large, it is generally necessary to stand on the mud triangle before it can be heated immediately by fire. The crucible can be placed in the front or side on the iron triangle shelf, and can be installed independently according to the experimental standard. The corundum crucible cannot be placed on the cold metal composite table immediately after heating, so as to avoid cracking due to large cooling. It can't be put on the wooden table immediately to avoid scalding the table or causing safety accidents. The proper method is to leave it on the iron triangle shelf for natural cooling, or put it into the asbestos net to cool it slowly. Please use crucible pliers to take and place corundum crucibles.

Application fields:

(1) Evaporation, concentration or crystallization of solution

(2) Burning solid compounds

Difficult problems in application:

(1) It can be heated immediately, and can not be cooled after heating. Remove it with corundum crucible pliers

(2) When the corundum crucible is heated, put it on the iron triangle shelf

(3) Stir during evaporation; When it is close to steam drying, the waste heat shall be recycled for steam drying

Corundum crucibles can be divided into high-purity graphite crucibles, clay corundum crucibles and metal composite crucibles.