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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.
A typical mixture is 3 parts of concentrated sulfuric acid and 1 part of 30 wt. % hydrogen peroxide solution; [1] other protocols may use a 4:1 or even 7:1 mixture. A closely related mixture, sometimes called "base piranha", is a 5:1:1 mixture of water, ammonia solution ( NH 4 OH , or NH 3 (aq) ), and 30% hydrogen peroxide.
Lenses soaking in a hydrogen peroxide-based solution. The case is part of a one-step system and includes a catalytic disc to neutralise the peroxide over time. Hydrogen peroxide contact solutions are storage solutions for contact lenses that rely on hydrogen peroxide to clean the contacts and break up proteins and deposits during the ...
Accelerated hydrogen peroxide (AHP) is a trademark [a] for solution of hydrogen peroxide whose antibacterial efficacy is enhanced by a surfactant and an organic acid. [ 1 ] [ 2 ] It is also a disinfectant / cleaning agent that stabilizes hydrogen peroxide so that it can be used for extended periods of time.
For the preparation of the complex, urea is dissolved in 30% hydrogen peroxide (molar ratio 2:3) at temperatures below 60 °C. upon cooling this solution, hydrogen peroxide–urea precipitates out in the form of small platelets. [2] Akin to water of crystallization, hydrogen peroxide cocrystallizes with urea with the stoichiometry of 1:1.
O 2 + CH 3 CHO → CH 3 CO 3 H. In the presence of a strong acid catalyst, such as sulfuric acid, acetic acid and hydrogen peroxide produce peracetic acid: [3] H 2 O 2 + CH 3 CO 2 H ⇌ CH 3 CO 3 H + H 2 O. However, in concentrations (3-6%) of vinegar and hydrogen peroxide marketed for household use, mixing without a strong acid catalyst will ...
The first stage of Fenton's reaction (oxidation of Fe 3+ with hydrogen peroxide) is used in Haber–Weiss reaction; Fenton's reagent can be used in organic synthesis reactions: e.g. hydroxylation of arenes via a free radical substitution; Conversion of benzene into phenol by using Fenton's reagent; Oxidation of barbituric acid into alloxan.
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).
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