Features:
The melting point of nickel is 1455 degrees. Nickel has strong alkali resistance and corrosion resistance. Therefore, nickel crucibles are commonly used to melt iron alloys, slag, clay, refractory materials, etc. With one stretch, the product is durable, the wall thickness is uniform, and the test results are accurate.
Nickel characteristics
1. The melting point of nickel is 1455 degrees. Nickel has strong alkali resistance and corrosion resistance. Therefore, nickel crucibles are commonly used to melt iron alloys, slag, clay, refractory materials, etc.
2. The melting temperature of the nickel crucible should not exceed 700 degrees, because nickel is easily oxidized at high temperatures.
3. Nickel crucible cannot be used for burning precipitation.
4. Nickel crucible is suitable for molten samples of NaOH, Na202, Na2C03, NaHCO3 and alkaline solvents containing KNO3. It is not suitable for molten samples of acidic solvents such as KHSO4 or NaHS04, K2S207 or Na2S207 and alkaline sulfide flux containing sulfur.
5. Metal salts such as Al, Zn, Pb, Sn, and Hg in the molten state can make the nickel crucible brittle. Borax also cannot be melted in nickel crucibles.
6. Nickel crucibles often contain trace amounts of chromium, so care should be taken when using them.
7. The new nickel crucible should be burned to blue-purple in a muffle furnace first, remove the oil on the surface, then boil it with 1:20HCI for a while, and then rinse it with water.
