File:Очистка йода возгонкой (сублимацией) 02.jpg
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Русский: Возгонка (сублимация) — это переход вещества из твердого состояния в газообразное, минуя жидкую фазу. При обычных условиях йод представляет собой металлический порошок, который при сильном нагревании образует фиолетовые пары – газообразный молекулярный йод, который при охлаждении оседает на поверхности колбы в виде игольчатых кристаллов. Нелетучие примеси остаются на дне колбы. English: Sublimation (sublimation) - is the transition from solid to gas, bypassing the liquid phase. Under ordinary conditions of iodine is a metal powder which, when heated, forms a strong violet couples - gaseous molecular iodine, which when deposited on the cooling surface of the bulb in the form of needles. The non-volatile impurities remain at the bottom of the flask. |
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| Source | Own work |
| Author | Ershova Elizaveta |
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This image was uploaded as part of European Science Photo Competition 2015. |
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| current | 22:41, 20 November 2015 | | 448 × 604 (52 KB) | Ershova Elizaveta (talk | contribs) | User created page with UploadWizard |
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