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It was China that first discovered and used zinc in the world. In the 10th to 11th centuries, China was the first country to produce zinc on a large scale. In the last year of the Ming Dynasty, Song Yingxing’s book Tiangong Kaiwu has the earliest record of zinc smelting technology in the world. The production process is very simple. The calamine (ie, the zinc ore) is filled in a clay pot and sealed in a cone. The gap between the tank and the tank is filled with wood carbon, and the can is broken to obtain the extracted. Metal zinc ingots. In addition, Wang Chain (1888-1966), a pioneer in the study of chemical history and analytical chemistry in China, analyzed the ancient moneys of Tang, Song, Ming and Qing in 1956 and found that the Song Dynasty’s Shaosheng money contained high levels of zinc and proposed China. Zinc began with the correct scientific conclusions during the Jiaqing period of the Ming Dynasty. The actual application of zinc may be earlier than the age of the book.
The name zinc comes from the Latin Zincum, which means “white thin layer†or “white depositâ€. Its chemical symbol Zn is also derived from this, and its English name is Zinc.
A brief history of zinc discovery
Zinc is also one of the elements that humans know about their compounds since time immemorial. Zinc ores and copper alloy melt was prepared - brass, as early as the ancient people used. However, the acquisition of metallic zinc is much later than that of copper, iron , tin and lead . It is generally believed that this is due to the fact that when the carbon and zinc ore are co-heated, the temperature is as high as 1000 C or more, and the boiling point of the metallic zinc is 906 C. That is, it becomes a vapor state, and it is not easy to be noticed by ancient people when it is lost with smoke. Only when people master the method of condensing gas, it is possible to obtain elemental zinc.