Patten—Solutions of Hydrochloric Acid in Solvents. 319 
while he also finds that boron, arsenic, antimony and selenium 
are acted upon by oxygen in absence of moisture. 
Sabatier and Senderens 1 in 1893 found that dry nitrogen 
peroxide does not act upon dry sodium at ordinary tempera¬ 
tures, but on heating, the sodium is gently oxidized. Dickie, 
cobalt, and iron reduced by hydrogen burn wih incandescence 
in dry nitrogen peroxide to Fe 2 0 3 , C'o 4 0 5 and USTiO' + !N’i 2 0 , 3 ; 
while copper, cobalt and nickle give with dry D 2 0 4 —greatly 
diluted with dry nitrogen to avoid the oxidation mentioned 
above—the compounds Cu 2 D0 2 , Co 2 D0 2 and Di 2 D0 2 ; iron is 
acted on similarly but the compound is not well established as 
yet. The copper used may be reduced by carbon, or by hydro¬ 
gen, so* that the action is not due to the formation of a hydride 
of the metals. The authors state definitely that moist air im¬ 
mediately acts upon thes metallic nitroxyls giving nitrous 
vapors. 
In 1884 Dixon 2 observed that the union of carbon monoxide 
with oxygen is influenced by the presence of moisture, but in 
1896 found 3 that freshly prepared carbon monoxide unites with 
oxygen in absence of mjoisture. In 1894 4 Baker showed that 
dry nitric oxide and oxygen will not combine. Dixon 5 first 
found that moisture is necessary for the decomposition of cyan¬ 
ogen by oxygen, but later 6 succeeded in exploding a mixture 
of dry cyanogen and dry oxygen. Baker 7 was able to* burn dry 
carbon bisulphide in dry oxygen; he also showed that dry car¬ 
bon unites with dry oxygen but with no accompanying glow. 8 
Cohen 9 states that dry hydrogen chloride is without action 
upon aluminium or sodium. 
In 1892 Veley 1 showed that calcium oxide does not com¬ 
bine to any appreciable degree with carbon dioxide or with sul- 
1 Bull. Soc. Chim. 9, 669, 1893. 
2 Phil. Trans. 1884; B. A. Report 1880, 503; J. Chem. Soc. (Abstr. 1893.) 
8 Trans. Chem. Soc. 1896. 
4 Ibid. 1894. 611. 
5 Ibid. 1884. 
6 Ibid. 1896. 
7 Phil. Trans. 1888. 
8 Ibid. 1888; (Abstr) 571. 
9 Chem. News, 54, 102. 
1 Trans. Chem. Soc. 1893, 831-833. 
