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Written by pimpitcha
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Thursday, 09 July 2015 13:35 |
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In this video explains Enrichment of Ores. Ores mined from the earth are usually contaminated with large amounts of impurities such as soil, sand, are called gangue. The impurities must be removed from the ore prior to the extraction of the metal. Extracting Metals Low in the Activity Series : The oxides of un reactive metals can be reduced to metals by heating alone. Cinnabar (HgS) is an ore of mercury. When it is heated in air, it is first converted into mercuric oxide (HgO) on further heating it is reduced to mercury.
ที่มา : http://www.7active.in
ลิงค์ : https://youtu.be/HH1ZoR39sn8
อัพโหลดโดย : 7activestudio
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Last Updated on Thursday, 09 July 2015 13:36 |
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