Re: Need Ozone

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Ed Phillips by way of Terry Fritz <twftesla-at-uswest-dot-net>" <evp-at-pacbell-dot-net>

Tesla list wrote:
> 
> Original poster: "default by way of Terry Fritz <twftesla-at-uswest-dot-net>"
<moya-at-primus.ca>
> 
> Hello  Ed, Dunckx and all
> 
> That is a good question Ed - As I am only using the "sniff" test - O3 is
> heavier then O2 (you
> knew that) and it is more concentrated near the floor level - I can detect
> a sharp/fresh smell
> right away (when trying to generate O3) but once in a while I thought I
> smelt chlorine/bleech
> and I surmised this was a more saturated % of O3 (getting closer).
> 
> Here is the O3 test recently posted by  (Jeff /cougercat) - I hope this is
> right....
> 
> -**  General College Chemistry; Sneed & Maynard  - Van Nostrand Press 1944
> 
> There is a simple test that can detect ozone in less than 1 part in
> 1,000,000.  It consists of a piece of paper that has been moistened with a
> starch emulsion containing a little sodium or potassium iodide.  In the
> presents of ozone, the iodine is set free and impacts a blue color to the
> starch. **

	Interesting test, but don't have the iodides here to give it a try. 
Two questions:

1. Have you tried it? Results?
2. Are the results unambiguous?

Ed