This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment 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 ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/83/b6/78/66/attachment.htm ---------------------- multipart/alternative attachment--
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