Tungsten crucible main uses and matters needing attention
Graphite crucible main uses:
(1) Evaporation, concentration or crystallization of the solution
(2) burning solid matter
Notes for use of graphite crucible:
(1) Can be heated directly, can not be quenched after heating, with crucible pliers to remove
(2) The crucible is placed on the mud triangle when heated
(3) evaporation to stir; When nearly dry, use residual heat to dry
In graphite crucible, there are general graphite crucible, shaped graphite crucible, high purity graphite crucible three. Various types of graphite crucible, due to different performance, use and use conditions, the raw materials used, production methods, technology and product model specifications are also different.
A lot of people say that crucible and evaporation dishes are almost heating, in fact, not so, what are the characteristics of tungsten crucible, let's see what the difference is.
The tungsten crucible is strictly a part of the chemical apparatus, and it is relatively important. It is an important tool for refining and melting metals, and it is an important basis for guaranteeing some common chemical reactions. A pan is a vessel for evaporating a concentrated solution. It can be heated directly on a tripod, or indirectly by asbestos mesh and water bath. When heated, it can be stirred with a glass bar. Commonly used tungsten crucible specifications according to the diameter size of 18 cm, etc. They have different uses. Tungsten crucible can heat non-aqueous substances, such as melting non-corrosive salts, burning precipitation, carbonization or ash of some complex samples; Evaporating pans are commonly used to evaporate solutions. Different uses determine different materials. Tungsten crucible material is very resistant to high temperatures.
