Christian Friedrich Schoenbein to Faraday   31 May 1844

My dear Friend,

I write you a few lines to tell you that after having more closely examined the salt of which I spoke in my last letter¹ as of pure ozonide of potassium, I found it to contain appreciable quantities of a jodate. I must therefore ask you the favour not to communicate my letter to the Royal Society at least not that part of it which regards the isolation of Ozone. It seems that in treating my ozoniferous atmosphere with jodide of potassium a good portion of ozone is taken up and does occasion the formation of the jodate mentioned. But even this action appears to be an additional proof of the analogy which exists between Chlorine and Ozone. Berzelius to whom I communicated my results² about six weeks ago takes a very lively interest in the ozone affair and encourages me to sift the matter to the bottom³.

Your's | very faithfully | C.F. Schoenbein

Bâle 31, May 1844.

Address: Dr. M. Faraday | &c &c &c | Royal Institution | London.