240 



METALLIC OXIDES. 



H. 



An explanatory Statement of the Notions or Principles upon, 

 which the systematic Arrangement is founded, which was 

 adopted as the Basis of an Essay on Chemical Nomenclature. 

 By Professor J. Bekzelius. 



(Continued from p. 166.) 



of A FTER this general review of the changes which appear 

 f s 'J\. to 



Indication 



madTnpon 8 '-^L t0 be necessai T in the theory of chemistry, I shall have 



the combina- the honour to present to the academy the results of some ex- 



tions of metals periments upon the combinations of various metals with oxi- 



vithoxigen f 



and with sol- gen and with sulphur, made with the intention partly of deter- 



phur for deter* mining their composition with greater precision, in order to 

 composition refute certain incorrect notions respecting their nature, and 



their electro- partly to ascertain the electro-chemical nature of those metals, 



chemical na- ,, . . , . . , 



ture and rela- as we " as tne P^ce they ought to occupy in the system among 



tions. the other combustibles. Much remains yet to be done on 



this subject, because the field to be explored is so extensive, 

 that each individual step appears relatively of small magnitude. 

 My researches have been made upon the oxides of tin, tellu- 

 rium, gold, platina, palladium, lead, zinc, and manganese j 

 and at my request the following metallic oxides have been ana- 

 lysed, namely, those of cerium by M. de Hisinger • those of 

 nickel and cobalt byM.RathofFj that of bismuth by M. La- 

 gerhjelm; and those of mercury by M. SerTtroud 5 and these 

 chemists solicit the honour to publish their works in the Me- 

 moirs of the Academy. 



Ammonium? I should also have wished to add to these experiments 



that of the production of an amalgam of ammonium produced 

 an anhydrous ammoniacal salt ; and though in my experi- 

 ments on that subject, an amalgam of kalium has produced an 

 amalgam of ammonium in the subcarbonate of ammonium, 

 prepared with the carbonic acid gas an4 dried ammoniacal gas, 

 I shall not venture to present the same to the Acadamy as a 

 well-determined result, because I have not yet had an oppor- 

 tunity of examining to what degree I may have succeeded in 

 operating with materials perfectly deprived of water. It is, 



neyer- 



