The oxoacid of chromium(VI), H 2 CrO 4 , has never been isolated. Because an aqueous solution of chromium(VI) oxide, CrO 3 , is a chromic acid solution, chromium(VI) oxide was sometimes called chromic acid. CrO3 + H2O → H2CrO4 2CrO 4 2- +2H + Cr 2 O 7 2- +H 2 O Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
クロム(Ⅵ)のオキソ酸H2CrO4であるが、この酸自体は単離されていない。酸化クロム(Ⅵ)CrO3の水溶液がクロム酸溶液であるため、酸化クロム(Ⅵ)がクロム酸といわれたこともあった。 CrO3+H2O→H2CrO4 2CrO42-+2H+Cr2O72-+H2O 出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例 |
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