yellow ivories

[Kevin E. Ramsey]

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    I just had an idea,,,,,,,,,,What about those tooth =
whitening-bleaching gels that you can get at any drug store?


Kevin E. Ramsey
ramsey@extremezone.com=20
  ----- Original Message -----=20
  From: Billbrpt@AOL.COM=20
  To: pianotech@ptg.org=20
  Sent: Saturday, May 05, 2001 9:20 PM
  Subject: Re: yellow ivories


  In a message dated 5/5/01 10:52:18 PM Central Daylight Time,=20
  diskladame@provide.net (Z! Reinhardt) writes:=20



    The 40% solution can be found at beauty supply shops.=20


  Sorry, that is a common misconception.  "40 Volume" is not the same as =
40%.  =20
  I honestly forget what the meaning of "volume" is for these products, =
it's=20
  been a long time since I did that kind of work but I remember being=20
  misinformed in the same way back then.  If you were to put a solution =
of=20
  something on your hair that is really 40% Hydrogen Peroxide (H2O2), it =
would=20
  chemically "cook" it to the point of destruction and your scalp would =
be=20
  burned severely as well.=20

  In a nutshell, the worst of the discoloration of ivory is in the =
oxidized=20
  surface.  Often a simple cleaning, sometimes with a mild abrasive =
followed by=20
  buffing will renew their color sufficiently.  If the cleaning with a =
mild=20
  abrasive isn't enough, using the 35% H2O2 solution in repeated =
applications=20
  under either natural or artificial ultraviolet light will lighten =
their color.=20

  You have to specially ask for this chemical because it is very strong =
and=20
  potentially dangerous.  Whatever the beauty supply house has, even its =

  strongest is nowhere near this strong, I'm guessing 10 or 12%.  It is =
the=20
  same solution as the 3% H2O2 that you may have in your medicine =
cabinet, just=20
  more than 10 times as concentrated.  H20 is water as you know it.  In =
H202,=20
  the extra Oxygen molecules are a classic example of the often talked =
about=20
  "free radical".  The H2O2 molecule wants to rid itself of that extra =
oxygen=20
  molecule, so it will give it off to nearly anything.=20

  It is a very unstable compound that wants to stabilize itself into =
just plain=20
  H20.  That extra Oxygen molecule will *oxidize* anything it can.  When =
the=20
  concentration of H2O2 is very high in a solution, it becomes a very =
powerful=20
  corrosive or catalyst.  Yet, it really does take this much chemical =
strength,=20
  plus dangerous and harsh ultraviolet light in *repeated* applications =
to=20
  really have a significant bleaching effect on ivory.=20

  Consider this when weighing the factors about how much this should =
cost and=20
  which precautions should be taken.=20

  Bill Bremmer RPT=20
  Madison, Wisconsin=20

  Bill Bremmer RPT=20
  Madison, Wisconsin=20

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