- periodic acid
- noun /ˌpɜːraɪˈɒdɪk ˈæsɪd/HIO, the oxyacid of iodine in which iodine has the highest oxidation number; it is a white crystalline substance, and a strong oxidizing agent
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periodic acid
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periodic acid — [pʉr΄ī äd′ik] n. [ PER + IODIC] a white crystalline solid, HIO4, formed by careful oxidation of iodine or iodic acid: it is a strong oxidizing agent … English World dictionary
Periodic acid — Orthoperiodic acid Other names Paraperiodic acid … Wikipedia
Periodic acid-Schiff stain — Periodic acid Periodic acid Schiff (PAS) is a staining method used to detect glycogen and other polysaccharides in tissues. The reaction of periodic acid oxidizes the diol functional groups in glucose and other sugars, creating aldehydes that… … Wikipedia
periodic acid-Schiff — shif adj relating to, being, or involving a reaction testing for polysaccharides and related substances in which tissue sections are treated with periodic acid and then Schiff s reagent with a reddish violet color indicating a positive test… … Medical dictionary
periodic acid-Schiff reaction — A method for staining carbohydrates: adjacent hydroxyl groups are oxidized to form aldehydes by periodic acid (HIO4 ) and these aldehyde groups react with Schiff s reagent (basic fuchsin decolorised by sulphurous acid) to give a purple colour.… … Dictionary of molecular biology
periodic acid-Schiff reaction — (PAS reaction) a test for the presence of glycoproteins, polysaccharides, certain mucopolysaccharides, glycolipids, and certain fatty acids in tissue sections. The tissue is treated with periodic acid, followed by Schiff s reagent. A positive… … Medical dictionary
periodic acid–Schiff reaction — PAS reaction a test for the presence of glycoproteins, polysaccharides, certain mucopolysaccharides, glycolipids, and certain fatty acids in tissue sections. The tissue is treated with periodic acid, followed by Schiff s reagent. A positive… … The new mediacal dictionary
periodic acid — 1. HIO4, but existing in solution usually in hydrated form; used in carbohydrate detection and analysis. SYN: metaperiodic acid. 2. Any of several iodic(VII) acids formed by the combination of iodine heptoxide, I2O7, with water. * * * per·iod·ic… … Medical dictionary
periodic acid — [ˌpə:rʌɪ ɒdɪk] noun Chemistry a hygroscopic solid acid with strong oxidizing properties. Origin C19: from sense 2 of per + iodic acid … English new terms dictionary
periodic acid — n. Chem. a hygroscopic solid acid containing heptavalent iodine. Etymology: PER + IODINE … Useful english dictionary
periodic acid — noun Etymology: International Scientific Vocabulary per + iodic Date: 1836 any of the strongly oxidizing acids (as H5IO6 or HIO4) that are the most highly oxidized acids of iodine … New Collegiate Dictionary
