Re: zero tolerance


On July 28, Scott Armstrong asked whether Hydrogen peroxide and hydrogen
dioxide are the same. I replied they are.
  Some one wrote: 
>      Well, there is a big differnece.  Hydrogen peroxide is H2O2. As
>  for hydrogen dioxide, I am not sure what it does or what it is.  I
> don't know why it is called zero tolerance. 

  I figured I may may have written too hastily. Tonight I checked the
Merck Index and found:
  " 4691. Hydrogen peroxide, hydrogen dioxide,  hydroperoxide, Albone.
H2O2. Mol wt = 34.02."

  It would seem Zero Tolerance is one of the tricky products on the
market selling a common substance at an inflated price. However, Zero
tolerance could be a higher or lower concentration of H2O2.
  Chemists can get a 30% soln, but the household strength is 3%. The 30%
turns my hands white when I get it on me. I have used the 30% soln to
disinfect plants for micropropagation, but it was not as good as Chlorox
bleach diluted 1 to 10.

-- 
Harold Eddleman Ph.D. Microbiologist.       i*@disknet.com 
Location: Palmyra IN USA; 36 kilometers west of Louisville, Kentucky
http://www.disknet.com/indiana_biolab/chm.htm




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