Chemical Nomenclature of Berzelius. 255 
Chlorous oxide.*(14) Protoxide of chlorine. 
Chlorous acid. Peroxide of chlorine. 
Chloric acid. 
Oxychloric acid.+ Perchloric acid. 
Bromic acid. 
Todic acid.(15) 
Carbonic oxide. 
Carbonic acid. 
Boric acid. Boracic acid. 
Silicic acid. Silica. 
Selenic oxide. Oxide of selenium. 
Selenious acid. 
Selenic acid. 
Arsenious suboxide.(16) 
Arsenious acid. 
Arsenic acid. 
* Itis probable that this gaseous oxide of chlorine is the lowest degree of oxida- 
tion of chlorine, I call it chlorous oxide, because there probably exists a chloric ox- 
ide, composed of equal volumes of chlorine and oxygen, not yet discovered.— Ber- 
zelius. 
(14) The views of Berzelius, in relation to the combinations of chlorine and oxy- 
gen, differ from those of the French and English chemists, except in relation to the 
protoxide and chloric acid. He regards the peroxide of chlorine, of Gay-Lussac and 
Davy, as an acid, (chlorous acid,) and alleges that when exposed in its nascent state 
to bases it combines with them, forming a class of salts. These salts have a peculiar 
acrid taste; and destroy organic colors. He further contends, that when a base is 
added directly to chlorous acid, it is not wholly resolved into chloric acid and chlo- 
rine, as is proved by adding sulphuric acid, which liberates chlorous acid. The per- 
ehlorie (oxychloric) acid, Berzelius makes, after applying a correction to the analy- 
sis.of Stadion, to consist of one volume of chlorine and three of oxygen, but after- 
wards adopts the later analysis of Mitscherlich, which gives one volume of chlorine 
to three and a half of oxygen.— Trans. 
+ The use of the name could not be avoided, since the term, chloric acid, has 
’ been applied to a lower degree of oxidation, and could not be changed without in- 
convenience.— Berzelius. 
(15) Iodous acid is rejected, owing to the doubts thrown upon the experiment of 
Sementini. The number of the Journal of the Royal Institution of Great Britain 
for August, 1831, contains a reply of Sementini to the criticisms of Wohler, and a 
method of preparing iodous acid and the oxide of iodine, by the direct union of iodine 
and oxygen.— Trans. 
(16) Arsenious suboxide: the powder obtained by the exposure of metallic arse- 
nic to the air, and which is not usually regarded as a definite compound. In the 
text this is called arsenic oxide, but the mistake is corrected, in the body of the work, 
by the use of the term which has been substituted in this translation. — Zrans. 
