Hi Sol:
By the time the distilled water is bottled, the ozone is usually long
gone... or, the levels of ozone are so little as to have no effect.
Ozone's half life in water is roughly 30 minutes for room temperature
water; less when heated.
My testing indicates that plastic that does react with ozone outgasses,
and I've measured this using a PWT meter. As an example, with a plastic
vinyl hose used for ozonation, at first there was no measureable
reaction. As the plastic began to react, however, I could measure the
contaminants in the water, as the conductivity rapidly and drastically
increased.
3 Minutes of ozonation, when the wrong substances are in direct contact
with concentrated ozone, resulted in a stable conductivity change from
initial readings of .3Us to 400 - 500 uS.
Kind Regards,
Jason
sol wrote:
Jason E wrote:
To get back to the point, under no circumstances should ANYTHING with
ozone in it be stored in plastic.
Would you include distilled water in that statement? Isn't commercially
sold DW ozonated?
Some plastic is partially, and temporarily, resistant to ozone.
http://ift.confex.com/ift/2001/techprogram/paper_8541.htm
Even this research is not quite accurate, in that it is limited to
ozonation of water, and THEN storing the water in plastic... Which is
far different from the plastic being constantly subjected to fresh
ozone, or in the case of a concentrated ozone product ( like ozonated
oils ) being stored long term in plastic.
There is no such thing as ozone-resistant plastic.
I was recently asked by a University to supply them with a long term
supply of ozonated oils. I imagine I could have made a very nice profit.
The truth is, it's safer and more affordable to buy your own equipment
and do it right than to purchase it from someone...especially someone
who cuts corners for the sake of profit.
Much the same as with EIS, eh?
sol
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