Периодат серебра

[taxol]

Известно несколько периодатов серебра, к примеру AgIO₄, Ag₃IO₅, Ag₅IO₄.

Причем многие из периодатов представляют в виде аддуктов типа 3Ag₂O*I₂O₇

Как получить безводный периодат формулы AgIO₄?

Изменено 2 Января, 2014 в 09:28 пользователем taxol

[amik]

Например так:

Silver metaperiodate crystals were obtained by the slow evaporation method [13]. In the first stage, AgNO₃ was treated with a solution of sodium dimetaperiodate (Na4I209) in HN03 and a pale yellow precipitate was obtained. This was washed with water acidified with HN03. On cooling this solution a straw yellow precipitate of (Ag₄I₂O₉·3H₂O) was obtained. This precipitate was heated at 125° С for some time in order to remove the water of hydration. Then in the second stage the anhydrous silver dimesoperiodate was dissolved in warm HNO₃ and the solution, on slow evaporation, gave the orange yellow crystals of AgIO₄. The dimensions of the crystals were about 1 to 3 mm.

Изменено 9 Января, 2014 в 13:01 пользователем amik

[taxol]

Огромное спасибо! Надо попробовать...