Английская Википедия:Barium peroxide
Barium peroxide is an inorganic compound with the formula Шаблон:Chem2. This white solid (gray when impure) is one of the most common inorganic peroxides, and it was the first peroxide compound discovered. Being an oxidizer and giving a vivid green colour upon ignition (as do all barium compounds), it finds some use in fireworks; historically, it was also used as a precursor for hydrogen peroxide.[1]
Structure
Barium peroxide consists of barium cations Шаблон:Chem2 and peroxide anions Шаблон:Chem2. The solid is isomorphous to calcium carbide, Шаблон:Chem2.
Preparation and use
Barium peroxide arises by the reversible reaction of Шаблон:Chem2 with barium oxide. The peroxide forms around 500 °C and oxygen is released above 820 °C.[2]
This reaction is the basis for the now-obsolete Brin process for separating oxygen from the atmosphere. Other oxides, e.g. [[Sodium oxide|Шаблон:Chem2]] and SrO, behave similarly.[3]
In another obsolete application, barium peroxide was once used to produce hydrogen peroxide via its reaction with sulfuric acid:[1]
The insoluble barium sulfate is filtered from the mixture.
Footnotes
- ↑ 1,0 1,1 Шаблон:Ullmann
- ↑ Ошибка цитирования Неверный тег
<ref>; для сносокCeramicне указан текст - ↑ Holleman, A. F.; Wiberg, E. "Inorganic Chemistry" Academic Press: San Diego, 2001. Шаблон:ISBN.
See also
External links
