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Peroxide. In chemistry, peroxides are a group of compounds with the structure R−O−O−R, where the R's represent a radical (a portion of a complete molecule; not necessarily a free radical [ 1]) and O's are single oxygen atoms. [ 2][ 3] Oxygen atoms are joined to each other and to adjacent elements through single covalent bonds, denoted by ...
Hydrogen peroxide is a chemical compound with the formula H 2 O 2.In its pure form, it is a very pale blue [5] liquid that is slightly more viscous than water.It is used as an oxidizer, bleaching agent, and antiseptic, usually as a dilute solution (3%–6% by weight) in water for consumer use and in higher concentrations for industrial use.
Acetone peroxide (specifically, triacetone triperoxide) was discovered in 1895 by the German chemist Richard Wolffenstein. [5] [6] [7] Wolffenstein combined acetone and hydrogen peroxide, and then he allowed the mixture to stand for a week at room temperature, during which time a small quantity of crystals precipitated, which had a melting point of 97 °C (207 °F).
Main group peroxides are peroxide derivatives of the main group elements. Many compounds of the main group elements form peroxides, and a few are of commercial significance. Examples. With thousands of tons/year being produced annually, the peroxydisulfates, S 2 O 2− 8, are preeminent members of this class.
Benzoyl peroxide is a chemical compound (specifically, an organic peroxide) with structural formula (C6H5−C (=O)O−)2, often abbreviated as (BzO) 2. In terms of its structure, the molecule can be described as two benzoyl ( C6H5−C (=O)−, Bz) groups connected by a peroxide ( −O−O− ). It is a white granular solid with a faint odour of ...
Haem peroxidases (or heme peroxidases) are haem -containing enzymes that use hydrogen peroxide as the electron acceptor to catalyse a number of oxidative reactions. Most haem peroxidases follow the reaction scheme: In this mechanism, the enzyme reacts with one equivalent of H 2 O 2 to give [Fe 4+ =O]R' (compound I).
Calcium peroxide. Chlorine peroxide. Chromium (VI) oxide peroxide. Copper peroxide.
The most commonly produced piezoelectric ceramics are lead zirconate titanate (PZT), barium titanate, and lead titanate. Gallium nitride and zinc oxide can also be regarded as a ceramic due to their relatively wide band gaps. Semiconducting PMs offer features such as compatibility with integrated circuits and semiconductor devices.