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13 Свод. Выпуск II, 19-;9 i.13 Code Edition II, 19-; 9 i.
193 Предм.ет изобретени ,, ,, Способ нолучени окиси хрома путем термического разложени хромового ангидрида, отличающиис тем, что. с целью получени продукта с минимальным содержанием серы в виде нераствори„4 сульфатов, в расплавленный хромовый ангидрид добавл ют количество углекислых со щелочных металлов.193 Invention, ,, Chromium oxide production method by thermal decomposition of chromic anhydride, characterized in that. In order to obtain a product with a minimum sulfur content in the form of insoluble 4 sulfates, carbonic acid from alkali metals is added to the molten chromic anhydride.
SU391300A1949-02-051949-02-05
The method of producing chromium oxide
SU77540A1
(en)