200 ANNUAL OF SCIENTIFIC DISCOVERY. 



Ozonized oxygen, as produced from common oxygen by the electrical 

 spark or phosphorus, is identical with that contained in a number of oxy- 

 compounds, the principal ones of which arc the oxides of the precious 

 metals, the peroxides of manganese, lead, cobalt, nickel, and bismuth; per- 

 manganic, chromic, and vanadic acids, and even the peroxides of iron and 

 copper may be numbered among them. 



The whole of the oxygen of the oxides of the precious metals exists in 

 the ozonic state, whilst in the rest of the oxy-compounds named, only part 

 of their oxygen is in that condition. I call that oxj-gen negatively-active, or 



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ozone par excellence, and give it the sign O, on account of its electromotive 



bearing. Though generally disinclined to coin new terms, I think it conven- 

 es 

 ient to denominate the whole class of the oxy-compounds containing O 



"ozonids." There is another less numerous series of oxy-compounds in 



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which part of their oxygen exists in an opposite active state, i. e., as + O 

 or antozone, wherefore I have christened them "antozonids." This class is 

 composed of the peroxides of hydrogen, barium, strontium, and the rest of 

 the alkaline metals; and on this occasion I must not omit to add, that what 

 I have hitherto called oxonized oil of turpentine, ether, etc., contain their 



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active oxygen in the + O state, and belong therefore to the class of the 

 "antozonids." 

 Kow, on bringing together, under proper circumstances, any ozonid with 



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any antozonid, reciprocal catalysis results; the O of the one and the + O 

 of the other neutralizing each other into O, which, as such, cannot be 



retained by the substances with which it had been previously associated in 



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the O or +O condition. The proximate cause of the mutual catalysis of 



so many oxy-compounds, depends therefore upon the opposite states of the 

 active oxygen contained in those compounds. 

 I will now give some details on the subject. 



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1. Free ozonized oxygen = ( O), and peroxide of hydrogen = HO + 



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(+ 0), or peroxide of barium = BaO + (+ O), the latter suspended in water, 



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on being shaken together, destroy each other, HO + (+0) or BaO + (+O) 



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being reduced to HO or BaO, and +O and O transformed into 0. 



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2. Aqueous permanganic acid == MnzCta + 5 ( O), or a solution of per- 

 manganate of potash mixed with some dilute nitric acid, is almost instanta- 

 neously discolored by peroxide of hydrogen or peroxide of barium; the 

 nitrate of the protoxide of manganese being formed in the first case, and in 



the second, besides this salt, the nitrate of baryta. It is hardly necessary to 



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state, that in both cases the O of the permanganic acid and the + O of 



the peroxide of hydrogen or barium are disengaged as O. 



3. An aqueous solution of chromic acid containing some nitric or sul- 

 phuric acid and peroxide of hydrogen, are rapidly transformed into the 

 nitrate or sulphate of oxide of chromium, HO, and inactive oxygen, which 

 is of course disengaged. A solution of chromic acid mixed with some nitric 

 acid and BaO;?, gives a similar result, nitrate of baryta and oxide of chro- 

 mium being forme 1, and O disengaged. 



4. If you add to a mixture of am r peroxide salt of iron and the red ferro- 

 sesquicyamiret of potassium (both substances dissolved in water) some per- 

 oxide of hydrogen, Prussian blue will be thrown down and inactive oxygen 

 set free. On introducing into a mixture of nitrate of peroxide of iron and 



