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Encyclopedia > Carbamide peroxide

Carbamide peroxide is an oxidising agent, consisting of hydrogen peroxide compounded with urea. The molecular formula is CH6N2O3. Hydrogen peroxide (H2O2) is a clear liquid, slightly more viscous than water, that has strong oxidizing properties and is therefore a powerful bleaching agent that has found use as a disinfectant and (in high concentrations as high test peroxide) as an oxidizer or monopropellant in rockets. ... Urea is an organic compound of carbon, nitrogen, oxygen and hydrogen, with the formula CON2H4 or (NH2)2CO and the structure shown right: Urea is also known as carbamide, especially in the recommended International Non-proprietary Names (rINN) in use in Europe. ... A chemical formula (also called molecular formula) is a concise way of expressing information about the atoms that constitute a particular chemical compound. ...


This chemical is commonly encountered in cosmetic dentistry, where it is used to "bleach" teeth. The active ingredient is hydrogen peroxide, which acts to oxidise interprismatic extrinsic staining within tooth enamel. There are several methods of applying the peroxide gel to the tooth ranging from night-guard application at home or in-surgery application. The bleaching obtained is proportional to the length of time the peroxide is applied to the tooth, and the concentration used. X-rays can reveal if a person has cavities Dentistry is the practical application of knowledge of dental science (the science of placement, arrangement, function of teeth and their supporting bones and soft tissues) to human beings. ... Tooth bleaching, also known as tooth whitening, is a common procedure in general dentistry but most especially in the field of cosmetic dentistry. ... Hydrogen peroxide (H2O2) is a clear liquid, slightly more viscous than water, that has strong oxidizing properties and is therefore a powerful bleaching agent that has found use as a disinfectant and (in high concentrations as high test peroxide) as an oxidizer or monopropellant in rockets. ... Tooth enamel is the most highly mineralized and hardest substance of the body [1]. Enamel is one of the three major parts of the human tooth, the others being dentin and cementum. ...


The chemical is a skin, eye and respiratory irritant. It is also corrosive and causes burns. It doesn't hurt at 10% concentration (3% peroxide equivalent) but it does hurt at 35% equivalent, causing white chemical burns on skin and gums alike.


A 6.5% concentration solution is used to loosen and remove ear wax.


  Results from FactBites:
 
Treatment for dry mouth employing carbamide peroxide - Patent 6200551 (2375 words)
The hydrogen peroxide remains stable until the carbamide peroxide is applied to the mouth and contacts the water inherent therein.
Carbamide peroxide is a stable organic compound of urea and hydrogen peroxide.
Because the hydrogen peroxide remains stable until it is released from the urea, the carbamide peroxide in effect becomes a "time releasing" agent for the hydrogen peroxide, and seems to continue releasing low levels of hydrogen peroxide for atleast twelve hours.
Carbamide peroxide - Wikipedia, the free encyclopedia (253 words)
Carbamide peroxide, also called urea peroxide, is an oxidising agent, consisting of hydrogen peroxide compounded with urea.
The active ingredient is hydrogen peroxide, which acts to oxidise interprismatic extrinsic staining within tooth enamel.
The bleaching obtained is proportional to the length of time the peroxide is applied to the tooth, and the concentration used.
  More results at FactBites »


 
 

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