• 0.43
  • pure water has a melting point of 0 °C and pure hydrogen peroxide of −0.43 °C. The boiling point of the same mixtures is also depressed in relation with the mean of both boiling points (125.1 °C). It occurs at 114 °C. This boiling point is 14 °C greater than that of pure water and 36.2 °C less than that of pure hydrogen peroxide. (wikipedia.org)
  • alkyl
  • Instead of hydrogen itself, however, a 2-alkyl-anthrahydroquinone, which is generated before from the corresponding 2-alkyl-anthraquinone by catalytic hydrogenation with palladium. (wikipedia.org)
  • acid
  • Through a concerted mechanism, one of the substituents on the ketone migrates to the oxygen of the peroxide group while a carboxylic acid leaves. (wikipedia.org)
  • This organic peroxide is a colorless liquid with a characteristic acrid odor reminiscent of acetic acid. (wikipedia.org)
  • concentration
  • Tower's group was able to correlate fly activity and hydrogen peroxide concentration precisely through a unique three-dimensional movement tracking system developed by first author and doctoral student Dhruv Grover ( http://uscnews2.usc.edu/newstools/detail.php?recordnum=16087 ). (redorbit.com)
  • These generators initially dehumidify the ambient air, then produce VHP by passing aqueous hydrogen peroxide over a vaporizer, and circulate the vapor at a programmed concentration in the air, typically from 140 ppm to 1400 ppm, depending on the infectious agent to be cleared. (wikipedia.org)
  • U.S. dentists also offer a specialized Crest Whitestrips called "Supreme", which is more effective than retail versions due to the higher concentration of hydrogen peroxide. (wikipedia.org)
  • form
  • Recent APEX observations lead to the first ever discovery of hydrogen peroxide in space, the first image of a dusty disc closely encircling a massive baby star, providing direct evidence that massive stars form in the same way as their smaller brethren, and the first direct measurements of the size and brightness of regions of star-birth in a very distant galaxy. (wikipedia.org)
  • process
  • Tower's research group set out to find the signal by probing the action of an enzyme in mitochondria that converts toxic by-products of the body's combustion process into hydrogen peroxide, itself a harmful but less toxic substance which other defenses later break down further. (redorbit.com)
  • The Allies stumbled over a hydrogen peroxide plant in the Hartz mountains when the war was over, about which they knew nothing (location, capacity, process description). (uboat.net)