File:Пламя с зеленой каймой.jpg
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Size of this preview: 800 × 533 pixels. Other resolutions: 320 × 213 pixels | 640 × 427 pixels | 1,024 × 683 pixels | 1,280 × 854 pixels | 2,449 × 1,633 pixels.
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| Description |
Русский: Практическое занятие по общей и неорганической химии в медицинском колледже. Проводится опыт качественной реакции на борную кислоту (реакция этерификации). В фарфоровой чашке содержится: борная кислота, концентрированная серная кислота, этанол. Поджигая содержимое чашки наблюдаем пламя с зеленой каймой. English: It is the practical lesson on General and Inorganic Chemistry in the Medical college. The experiment of the qualitative reaction on boric acid (the esterificationreaction) is conducted. There are boric acid, concentrated sulfuric acid, ethanol in the porcelain cup. We observe the flame with a green border when burning the contents of the cup. |
| Date | |
| Source | Own work |
| Author | Ефремова Татьяна |
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I, the copyright holder of this work, hereby publish it under the following license:
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
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This image was uploaded as part of European Science Photo Competition 2015. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 18:48, 26 November 2015 | | 2,449 × 1,633 (1.4 MB) | Kazolan (talk | contribs) | User created page with UploadWizard |
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