Perboric acid (peroxoboric acid)

Japanese: ペルオキソホウ酸(ペルオキソ硼酸) - ペルオキソほうさん(英語表記)perboric acid
Perboric acid (peroxoboric acid)
A general term for compounds in which a peroxo-O 2 2- atom is coordinated in place of the oxygen atom bonded to the boron in boric acid. It is sometimes mistakenly called perboric acid. The free acid has not been obtained, but several alkali metal salts are known. A typical example is Na[(HOO)B(OH) 3 ]・2H 2 O, which is synthesized by the reaction of boric acid with sodium peroxide or by the electrolytic oxidation of a sodium borate solution. This is sometimes written as NaBO 3 ・4H 2 O. When dehydrated, the composition becomes NaBO 3 ・3H 2 O, NaBO 3 ・H 2 O, and at high temperatures it decomposes to anhydrous sodium metaborate NaBO 2 , which is no longer a peroxo acid salt.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:
ホウ酸のホウ素と結合している酸素原子の代りにペルオキソO22-が配位した型の化合物の総称。過ホウ酸と誤称されることもある。遊離酸は得られていないが,アルカリ金属塩がいくつか知られている。代表的なものはNa[(HOO)B(OH)3]・2H2Oで,ホウ酸と過酸化ナトリウムとの反応,またはホウ酸ナトリウム溶液の電解酸化で合成される。これはNaBO3・4H2Oのように書かれることもある。脱水すると順に,NaBO3・3H2O,NaBO3・H2Oの組成となり,高温では分解して無水メタホウ酸ナトリウムNaBO2と変化してペルオキソ酸塩ではなくなる。

出典 株式会社平凡社世界大百科事典 第2版について 情報

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