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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.
Hydrogen peroxide at quite low concentrations, say 1% to 3% replenished every few days, is less inclined to damage the tissue, though it may take a week or two to achieve complete whiteness. Completion
A 2% solution of accelerated hydrogen peroxide achieves a high level of disinfection in 5 minutes and is suitable for disinfecting hard plastic medical devices such as endoscopes. [3] In addition to being an excellent fungicide , chemicals using accelerated hydrogen peroxide have been suggested by some papers to be safer for humans and more ...
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.
Retrobright (stylized as retr0bright or Retrobrite [1]) is a hydrogen peroxide-based process for removing yellowing from ABS plastics. Yellowing in ABS plastic occurs when it is exposed to UV light or excessive heat, which causes photo-oxidation of polymers that breaks polymer chains and causes the plastic to yellow and become brittle.
A 3% solution is also used as an antiseptic. Hydrogen peroxide vapor is used as a medical sterilant and as room disinfectant. Hydrogen peroxide has the advantage that it decomposes to form oxygen and water thus leaving no long term residues, but hydrogen peroxide as with most other strong oxidants is hazardous, and solutions are a primary irritant.
The bleaching gel typically contains between 10% and 44% carbamide peroxide, which is roughly equivalent to a 3% to 16% hydrogen peroxide concentration. The legal percentage of hydrogen peroxide allowed to be given is 0.1–6%. [where?] Bleaching agents are only allowed to be given by dental practitioners, dental therapists, and dental hygienists.
Hydrogen peroxide–urea is mainly used as a disinfecting and bleaching agent in cosmetics and pharmaceuticals. [3] As a drug, this compound is used in some preparations for the whitening of teeth . [ 3 ] [ 9 ] [ 10 ] It is also used to relieve minor inflammation of gums, oral mucosal surfaces and lips including canker sores and dental ...