File:Аппарат Бекмана для криоскопического определения молекулярных весов.png
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Summary
[edit]DescriptionАппарат Бекмана для криоскопического определения молекулярных весов.png |
Русский: Аппарат Бекмана для криоскопического определения молекулярных весов |
Date | |
Source | Каблуков И. А., Гапон Е. Н., Гриндель М. А. Физическая и коллоидная химия. — М. Сельхозгиз, 1935, с. 148, рис. 42 |
Author | Каблуков И. А. (1857—1942), Гапон, Е. Н. (1904—1950), Гриндель М. А. (1888 — между 1933 и 1935) |
В приборе Бекмана для наблюдения понижения точки замерзания раствора его помещают в пробирку А, а саму пробирку, защищенную более широкой пробиркой В, — в снег или снег с солью (охладительная смесь), который находится в теплоизолированной ёмкости С. Переохлаждение раствора устраняют, вызывая кристаллизацию энергичным перемешиванием мешалкой Е, пропускаемой в пробирку А через закрывающую её пробку. Температуру измеряют метастатическим (дифференциальным) термометром Бекмана D.
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current | 19:41, 28 March 2020 | ![]() | 562 × 1,382 (12 KB) | Mayyskiyysergeyy (talk | contribs) | Uploaded a work by Каблуков И. А. (1857—1942), Гапон, Е. Н. (1904—1950), Гриндель М. А. (1888 — между 1933 и 1935) from [https://commons.wikimedia.org/w/index.php?title=File%3A%D0%9A%D0%B0%D0%B1%D0%BB%D1%83%D0%BA%D0%BE%D0%B2_%D0%98._%D0%90.%2C_%D0%93%D0%B0%D0%BF%D0%BE%D0%BD_%D0%95._%D0%9D.%2C_%D0%93%D1%80%D0%B8%D0%BD%D0%B4%D0%B5%D0%BB%D1%8C_%D0%9C._%D0%90._%D0%A4%D0%B8%D0%B7%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B0%D1%8F_%D0%B8_%D0%B... |
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