Nickel Crucible
Nickel crucible uses Nickel crucible is a commonly used experimental instrument, mainly used for melting, heating and analysis of materials at high temperatures.
First, nickel crucibles can be used for high-temperature melting experiments. In many experiments, certain substances need to be heated to very high temperatures for reactions, such as high-temperature melting experiments and molten salt batteries. Nickel crucibles can withstand the melting of substances at high temperatures due to their high temperature tolerance, so they can be used in these high-temperature melting experiments.
Second, nickel crucibles can be used for heating experiments. In some experiments, certain substances need to be heated in order to react or observe their changes. Nickel crucibles have good thermal conductivity and can transfer heat sources to substances evenly, making the heating of substances more uniform and controllable. Therefore, nickel crucibles can be used in various experiments that require heating, such as solid-phase pyrolysis experiments and heat transfer experiments.
In addition, nickel crucibles can also be used for analytical experiments. In some chemical or physical experiments, certain substances need to be analyzed and detected. Nickel crucibles are corrosion resistant and can hold most common chemicals and reagents, so they can be used in experiments to analyze and detect substances, such as thermal analysis experiments and chemical reaction experiments.
In addition, nickel crucibles can also be used in other special experiments. Due to their special properties, nickel crucibles are also used in some special experiments. For example, in high-temperature physics experiments, nickel crucibles are needed as carrier materials or heating materials. In semiconductor material research, nickel crucibles are also used as growth containers for semiconductor crystals. In addition, nickel crucibles can also be used to prepare special materials such as silicon nitride and silicon carbide. In short, as an experimental instrument, nickel crucible has good high temperature resistance and chemical stability, and is widely used in high-temperature melting experiments, heating experiments, analysis experiments and other special experiments. It plays an important role in chemistry, physics, materials science and other fields, and continues to be further studied and applied in related fields.
1. The melting point of nickel is 1455 degrees. Nickel has strong resistance to alkalinity and corrosion, so nickel crucibles are often used to melt ferroalloys, slag, clay, refractory materials, etc.
2. The melting temperature of nickel crucibles should not exceed 700 degrees, because nickel is easily oxidized at high temperatures.3. Nickel crucibles cannot be used for precipitate burning.
4. Nickel crucibles are suitable for melting samples with NaOH, Na2O2, Na2CO3, NaHCO3 and alkaline solvents containing KNO3, but not for melting samples with acidic solvents such as KHSO4 or NaHS04, K2S2O7 or Na2S2O7 and alkaline sulfide fluxes containing sulfur.
5. Molten metal salts such as Al, Zn, Pb, Sn, Hg, etc. can make nickel crucibles brittle. Borax cannot be melted in nickel crucibles either.
6. Nickel crucibles often contain trace amounts of chromium, so be careful when using them.
7. The new nickel crucible should be burned in a muffle furnace to turn blue-purple to remove oil stains on the surface, then boiled with 1:20 HCl for a while, and then rinsed with water.
