| What is the use of corundum forceps pot |
| [ Publish: 2018-11-27 ] |
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Corundum forceps pot is a kind of thing that can be used under the environment of high temperature resistance, extreme cold and heat resistance and chemical corrosion resistance. It is used in the test of some chemical reagents. So what is the application of corundum forceps pot? (1) burning solid substances (2) evaporation, concentration or crystallization of solution (if there is an evaporating dish, the evaporating dish should be selected. Crucible can also be used for evaporation, concentration or crystallization of solutions. Precautions for use (1) it can be directly heated, and it cannot be suddenly cooled after heating. Remove it with crucible pliers (2) when the crucible is heated, place it on the mud triangle (3) stirring when evaporating; Steam dry with residual heat near evaporation Crucibles containing more than 95% alumina are called corundum crucibles. 1. Corundum crucible is composed of porous fused alumina, which is strong and resistant to melting. 2. Corundum crucible is suitable for melting samples with anhydrous Na2C03 and other weak alkaline substances as flux, but not with Na 202, NaOH and other strong alkaline substances and acidic substances as flux (such as K2S 207, etc.). In addition, RUTUBO means "predicament" in Japanese, and it is also translated as "whirlpool" or "bog" in anime. (misread here, actually the word for crucible in Japanese is Rutsubo.) The categories of crucible are generally divided into three categories: the first type of copper crucible, its specification "number"; The second kind is the copper alloy crucible, which is specially round with 100 Numbers, circular with 100 Numbers, and the third kind of crucible for steelmaking with 100 Numbers. The specification (size) of the crucible, usually indicated by its serial size, is that of the number 1 crucible, which has a capacity to melt 1000g of brass and a weight of 180g. The melting amount of crucible in melting different metals or alloys can be calculated by multiplying the specification number of the bulk density of crucible by the corresponding metal and alloy coefficients. Crucible production of raw materials, can be summarized as three types. One is crystalline natural graphite, and the other is malleable refractory. The nickel crucible is suitable for melting NaOH Na2O2, Na2CO3 NaHCO3 and kno3-containing alkaline solvent samples, and is not suitable for melting KHSO4 or NaHS04, K2S2O7 or Na2S2O7 and other acidic solvents and basic sulfide flux samples containing sulfur. Corundum forceps pot is very strong, and melting resistance, more application in chemistry, often there will be reagent fusion to do the test, do the experiment of the vessel must be very good corrosion resistance, it can be seen that the corundum forceps pot is in line with this item.
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