^^ .y^j Prof. Schcenhein's Itemorks on O;s0}ie.^tzzsM 



rf]/Si!^fliidjSiibist^i^eSilb the highest degree of which they are 

 c^^abler'eveh sflver is so acted upoiii !> nuj 



"~ 3. Chemical ozone transforms a series of metallic protoxidttsi 

 into peroxides, for instance, those of lead, manganese, cobalf^ 

 nickel, silver* njf! 



^'4. Chemical ozone, at common temperature, converts^ 

 iodine into iodic acid, phosphorus into phosphoric acid, sul- 

 phurous acid into sulphuric acid, hyponitric acid into nitric 

 acid. .ij 



5. Chemical ozone changes iodide of potassium into iodatie 

 of potash, a great number ot' metallic sulphurets into sulphates, 

 for instance, sulphuret of lead into the sulphate. 

 ""'^. Chemical ozone destroys instantaneously sulphuretted, 

 seleniuretted, phosphoretted and ioduretted hydrogen- ni 



7. Chemical ozone transforms the yellow prussiate of potHf 

 ash into the red one.- '■'■'■' ^ • 



8. Chemical ozone, stsrSiich, is insoluble in water. 



pj'^. Chemical ozone when heated to a certain temperature 

 ii^ destroyed. 



10. Chemical ozone possesses the power of polarizing ne- 

 gatively gold and platinum. m 



The odoriferous principle disengaged at the positive elec4 

 trode during the electrolysis of water has, according to my 

 experiments, exactly the same properties; and I have not yet 

 been able to detect the slightest difference between chemical 

 and voltaic ozone. Hence I conclude, of course, that these 

 substances are identical. If Mr. Williamson will take the 

 trouble of putting a piece of clean phosphorus into a bal- 

 loon filled with common air and containing some water, in 

 such a way that the phosphorus is partly immersed in the 

 fluid and partly in contact with the ambient air, and leaving 

 the whole to itself at a temperature of 70° to 80° F., after a few 

 hours he will find in his balloon an atmosphere which will 

 serve to convince him of the correctness of the statements 

 above made. Mr. Williamson will allow me to tell him why 

 the negative result of what he calls his decisive experiment 

 proves nothing against the correctness of my statements ; and 

 indeed his very mode of experimenting could lead to no other 

 than a negative result. If phosphorus in a state of rather 

 minute mechanical division be shaken with voltaic ozone, the 

 latter is instantaneously taken up or destroyed, just as if it had 

 been treated with iron filings or any other readily oxidizable 

 body. I need hardly state, that an atmosphere of chemical 

 ozone does not in the least differ from one of voltaic ozone, 

 i. e. is destroyed by being put in contact with phosphorus. 

 Now Mr. Williamson making use in his decisive experi- 



