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单词 periodic acid
释义 per·iod·ic acid
\|pər.]ˌī|ädik-, |per]\ noun
Etymology: International Scientific Vocabulary per- + iodic
: any of a series of strongly oxidizing acids that are the highest oxygen acids of iodine and may be regarded as derived from a hypothetical iodine heptoxide I2O7 by union with varying amounts of water: as
 a. : a hygroscopic crystalline acid H5IO6 obtainable by electrolytic oxidation of iodic acid — called also orthoperiodic acid, paraperiodic acid
 b. : an unstable acid HIO4 that forms stable salts and is obtained as a white residue by dehydration of orthoperiodic acid by heat — called also metaperiodic acid
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更新时间:2024/12/24 10:09:43