Characteristics of Zinc Ingot Zinc is a basket-shaped white metal. The density is 7. 14g/cm3 and the melting point is 4 19.5℃. At room temperature, sex is fragile; 100 ~ 150℃ softening; When it exceeds 200℃, it becomes brittle again. The chemical properties of zinc are active. In room temperature air, a thin and dense film of basic zinc carbonate is formed on the surface, which can prevent further oxidation. When the temperature reaches 225℃, the oxidation of zinc is very intense. When it burns, it will give off a blue-green flame. Zinc is easily soluble in acid, and gold, silver and copper are easily displaced from the solution. The use of zinc Because zinc is easy to form a protective film on its surface at room temperature, the biggest use of zinc is in the zinc plating industry. Zinc can form alloys with many non-ferrous metals, among which alloys of zinc with aluminum and copper are widely used in die casting. Brass consisting of zinc, copper, tin and lead, used in machinery manufacturing. Zinc plate containing a small amount of lead, cadmium and other elements can be made into negative electrode of zinc-manganese dry battery, printed zinc plate, powder etching photographic plate and offset printing plate. Zinc can react with acid or strong alkali to release hydrogen. Zinc fertilizer (zinc sulfate, zinc chloride) can promote plant cell respiration and carbohydrate elimination. Zinc powder, lithopone and zinc chrome yellow can all be used as pigments. Zinc oxide can also be used in medicine, rubber, coatings and other industries.
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However, most of them exist in sulfide state. The main zinc-bearing mineral is sphalerite. There are also a small amount of oxidized minerals, such as smithsonite, such as smithsonite and hemimorphite.
Product properties of electrolytic zinc ingot: zinc is silvery white metal, fresh section has metallic luster, crystal is hexahedral and soft. Pure zinc is malleable, with a melting point of 4 19.85 degrees Celsius, and is easily oxidized in humid air. Product use: Zinc has a wide range of uses, mainly used in zinc plating, alloy manufacturing, precision casting, battery industry and zinc compounds and salts.