单词	periodic acid
释义	periodic acid /ˌpəːrʌɪˈɒdɪk / noun [mass noun] Chemistry A hygroscopic solid acid with strong oxidizing properties. Chemical formula: H5IO6. Semi-thin sections were incubated first with periodic acid for 8 min, rinsed in distilled water and then treated in the dark with Schiff reagent for 15 min to reveal carbohydrates.... We also note that atherinomorphs have periodic acid Schiff-positive yolk, but the phylogenetic significance of this observation remains to be determined with further surveys. Origin Mid 19th century: from per- (sense 2) + iodic acid.
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