Crucible purposes and methods of use

The crucible is very refractory material (such as clay, graphite, clay or difficult molten metal) of the vessel by the system or melting pot.
Crucible used for:
(1) evaporation of the solution, concentration or crystallization
(2) burning solid matter
Caution:
(1) Both instruments can be directly heated, the heating can not be quenched, remove the crucible tongs
(2) when heated in a crucible mud tripod
(3) evaporation to dryness while stirring nearly evaporated with heat
Gripping hair, thin spines and other small things apparatus, generally made ​​of metal, known as "forceps."
Crucible use:
A ceramic crucible is a deep bottom bowl containers. To fire when there is solid when heated, you must use a crucible. Because it is better able to withstand high temperatures than the glassware. Crucible crucible used will usually be placed diagonally on the crucible lid to prevent heat things jump out and let air out privileges for possible oxidation. Because the bottom of the crucible is very small, generally need to stand in the mud on the triangle to directly heated by fire. Crucible on the triangle in the mud with a positive place or diagonal can be, depending on the experimental requirements can be self-placement. After intense heat crucible can not immediately be placed on a cold metal table to avoid it because suddenly cold and rupture. Neither shall immediately placed in wooden desktop in order to avoid scorch your desktop or cause a fire. The correct approach for the indwelling natural cooling in the mud on a tripod or placed on the Internet so that it slowly asbestos heart was. Please read access to the crucible crucible tongs.