Chemical Depilatory

Chemical Depilatory

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Description

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. A chemical depilatory is a cosmetic preparation used to remove the hair from the skin on the human body. Currently, a common active ingredient is calcium thioglycolate, which breaks down the disulphide bonds in keratin and weakens the hair so that it is easily scraped off where it emerges from the hair follicle. This break down reaction is affected by the calcium hydroxide (an alkali). The resulting combination of calcium hydroxide and thioglycolic acid is calcium thioglycolate(CaTG). The calcium hydroxide is present in excess to enable the thioglycolic acid to react with the cystine present in hair protein. The reaction is 2SH-CH2-COOH(thioglycolic acid) +R-S-S-R(cystine)--- " 2R-SH + COOH CH2 SS CH2 COOH (dithiodiglycolic acid).show more

Product details

  • Paperback | 128 pages
  • 152 x 229 x 8mm | 200g
  • Dicho
  • United States
  • English
  • 6135849131
  • 9786135849134