Prof. Schoenbein 07i some Properties of Ozone. 199 



3. Ozone, like the three last-named bodies, enjoys the power 

 of negatively polarizing gold and platinum. 

 J ,4. Ozone, like chlorine, is absorbed at the common tempe- 

 reture by most metallic substances. 



; 5. Ozone, like chlorine, is readily taken up by phosphorus 

 at the common temperature, causing at tiie same time a disen- 

 gagement of light and some heat. 



6. Ozone, like chlorine, is absorbed by iodine. 



7. Ozone, like chlorine, very easily unites with olefiant gas, 

 producing a compound which seems to be analogous to the 

 chloride of hydrocarbon 



8. Ozone, like chlorine, has the power of decomposing sul- 

 phuretted hydrogen, and other compounds of hydrogen simi- 

 larly constituted. 



9. Ozone, like chlorine, transforms sulphurous acid into 

 sulphuric acid. 



10. Ozone, like chlorine, decomposes the iodide of potas- 

 sium and the ferro-cyanuret of the same metal. 



11. Ozone, like chlorine, being placed in contact with the 

 protoxides of a number of metals, converts them into the cor- 

 responding peroxides. The protoxides of lead, manganese 

 and nickel, for instance, are transformed into the peroxides 

 both by ozone and chlorine. 



12. Ozone, like chlorine, discharges the colour of many 

 sulphurets, for instance, that of the sulphurets of lead and an- 

 timony. 



13. Ozone, like chlorine, destroys completely, and with 

 great energy, all the vegetable colouring matters. 



14'. Ozone, like chlorine, is readily taken up by a variety 

 of other organic substances, for instance, by the ligneous ones, 

 albumen, fibrine, caseous matter, &c. 



15. Ozone, to finish the comparison, being inhaled, causes 

 catarrhal affections, very similar to those produced by chlo- 

 rine. 



Now, as there can be hardly any doubt that the reactions 

 just mentioned are due to part of the oxygen contained in 

 ozone, and as there is not one single fact known which is ir- 

 reconcilable to Berthollet's theory, we must think it at least 

 possible that the chemical effects produced by chlorine may 

 also depend upon the oxygen supposed to be contained in oxy- 

 murialic acid. 



In a theoretical point of view it is a most important, and, I 

 may add, by far too little an appreciated fact, that free or iso- 

 lated oxygen happens to be much less apt to unite with oxid- 

 able substances than oxygen in a certain state of combination. 

 In proof of ihe correctness of my assertion, I need only call 



