Chemistry and Physics. 363 
tained ‘sem to boil at 2° c giving ‘off much nitric o ; the 
thermometer then rose rapidly to 10°C. ; sa een 10° a ed 13° 
of nitrous and eons nitric aci , is form 
(2.) Hyponitric acid and nitric oxide unite at a high tempera- 
ture to form nitrous acid, which may in this manner be prepared 
pericalt 
3.) Hyponitric acid and eh under the same circumstances 
unite to form chloronitric acid, N 
(4.) Bromonitrie acid, N 6B, aon not be obtained pure by 
this process, as the product is decomposed b 
= Tait and Sepia acid do not combine at a high tem- 
-) Chlorin 
with one acid, or do so only to a very limited extent. 
neoes = and oxygen unite at ordinary temperatures to 
rm hyponit 
“(@,) Eaipharous: aan and carbonic oxide unite with hyponitric 
acid, even at a low temperature, to form compounds not further 
Investicated. 
All these facts speak in favor of the assumption that the mole- 
cule of fluid hyponitric acid is Ne: ; that of the vapor above 
ad ,» on the contrary, NO2.— ournal Sir prakt. ine: Band 
rs P. 1. Cow Series. G. 
mann 
may contain ammon intel salt i is to be evaporated ina ethene 
Vessel, not quite te dryness; a larger quantity of ! = 
-Monic oxalate is then to paminel dk tie whale heated to perfect 
Am. Jour.,Scr.—Tuirp Series, Vo. I, No. 11.—Nov., 1871. 
24 
