peroxide


peroxide
peroxidic /perr'ok sid"ik/, adj.
/peuh rok"suyd/, n., v., peroxided, peroxiding.
n.
1. Chem.
a. hydrogen peroxide, H2O2 or H-O-O-H.
b. a compound containing the bivalent group -O2-, derived from hydrogen peroxide, as sodium peroxide, Na2O2, or dimethyl peroxide, C3H6O2.
c. the oxide of an element that contains an unusually large amount of oxygen.
v.t.
2. to use peroxide as a bleaching agent on (esp. the hair).
[1795-1805; PER- + OXIDE]

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Any of a class of chemical compounds in which two oxygen atoms are linked by a single covalent bond.

Several organic (see organic compound) and inorganic (see inorganic compound) peroxides are useful as bleaching and oxidizing agents (see oxidation-reduction), as initiators of polymerization reactions, and in the preparation of hydrogen peroxide (a mild bleach and antiseptic) and other oxygen compounds. The peroxide anion (chemical formula O22-) is present in peroxides of inorganic compounds.

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      any of a class of chemical compounds in which two oxygen atoms are linked together by a single covalent bond. Several organic and inorganic peroxides are useful as bleaching agents, as initiators of polymerization reactions, and in the preparation of hydrogen peroxide (q.v.) and other oxygen compounds. The negatively charged peroxide ion (O22-) is present in inorganic compounds that may be regarded as salts of the very weak acid hydrogen peroxide; examples are sodium peroxide (Na2O2), a bleaching agent, and barium peroxide (BaO2), formerly used as a source of hydrogen peroxide.

      Two categories of peroxides exist in which one or both of the oxygen atoms are covalently linked to atoms other than hydrogen. One category is represented by cumene hydroperoxide, an organic compound used as a polymerization initiator and as a source of phenol and acetone, and peroxysulfuric acid, an inorganic compound used as an oxidizing agent. The other category includes di-tert-butyl peroxide and ammonium peroxydisulfate, both used as initiators.

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Universalium. 2010.

Look at other dictionaries:

  • peroxide — [pər äk′sīd΄] n. [ PER + OXIDE] any oxide containing the O2 group in which the two atoms of oxygen are linked by a single bond; specif., hydrogen peroxide vt. peroxided, peroxiding to treat with a peroxide; esp. to bleach (hair, etc.) with… …   English World dictionary

  • peroxide — ► NOUN 1) Chemistry a compound containing two oxygen atoms bonded together. 2) hydrogen peroxide, especially as used as a bleach for the hair. ► VERB ▪ bleach (hair) with peroxide …   English terms dictionary

  • peroxide — 1804, formed in English from per large amount + OXIDE (Cf. oxide). Peroxide blonde is attested from 1918 …   Etymology dictionary

  • Peroxide — Per*ox ide, n. (Chem.) An oxide containing more oxygen than some other oxide of the same element. Formerly peroxides were regarded as the highest oxides. Cf. {Per }, 2. [1913 Webster] …   The Collaborative International Dictionary of English

  • Peroxide — Die blau markierte Peroxidgruppe in (von oben nach unten) dem Peroxid Anion, sowie den oft instabilen Peroxiden im engeren Sinne, Hydroperoxiden und Peroxycarbonsäuren. R, R1 und R2 sind Organyl Reste (Alkyl Rest, Aryl Rest, Alkylaryl Rest etc.) …   Deutsch Wikipedia

  • Peroxide — A peroxide is a compound containing an oxygen oxygen single bond. The simplest stable peroxide is hydrogen peroxide. Superoxides, dioxygenyls, ozones and ozonides compound are considered separately. NOTOC Organic chemistry In organic chemistry,… …   Wikipedia

  • peroxide — /pəˈrɒksaɪd / (say puh roksuyd) noun 1. Chemistry a. an oxide derived from hydrogen peroxide which contains the O O group; generally that oxide of an element or radical which contains an unusually large amount of oxygen. b. hydrogen peroxide,… …   Australian English dictionary

  • peroxide — I. noun Date: 1804 a compound (as hydrogen peroxide) in which oxygen is visualized as joined to oxygen • peroxidic adjective II. transitive verb ( ided; iding) Date: 1906 to treat with a peroxide; especially to bleach (hair) with hydrogen… …   New Collegiate Dictionary

  • Peroxide — Per|oxide,   Verbindungen des als Peroxogruppe, O O , vorliegenden Sauerstoffs mit Wasserstoff oder Metallen (anorganische Peroxide) oder mit organischen Resten (organische Peroxide). Technisch wichtige anorganische Peroxide sind neben dem… …   Universal-Lexikon

  • peroxide — n. & v. n. Chem. 1 a = hydrogen peroxide. b (often attrib.) a solution of hydrogen peroxide used to bleach the hair or as an antiseptic. 2 a compound of oxygen with another element containing the greatest possible proportion of oxygen. 3 any salt …   Useful english dictionary


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