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| Категории верхнего уровня |
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| Цинк (@1876) |
| Zink [Анг.] |
| (German Zink, of obscure origin) Centuries before zinc was recognized as a distinct element, zinc ores were used for making brass. Tubal-Cain, seven generations from Adam, is mentioned as being an "instructor in every artificer in brass and iron." An alloy containing 87 percent zinc has been found in prehistoric ruins in Transylvania.
Metallic zinc was produced in the 13th century A.D. India by reducing calamine with organic substances such as wool. The metal was rediscovered in Europe by Marggraf in 1746. He demonstrated that zinc could be obtained by reducing calamine with charcoal.
A Periodic Table of the Elements at Los Alamos National Laboratory |
| Тип: Объект |
| Относится к разделам: |
| / Вещество / Химические элементы |
| / Физика / Оптика / Спектроскопия |
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