230 Experiments on the Oxygenated 
salt did not produce the same effect as with the. 
nitrous acid; no light appearing as in the last ex- 
periment. ' : 
EXPERIMENT VIII. 
On putting a little of the salt into the sulphuric 
acid, a violent crackling, or a great number of 
small explosions took place, and a very strong smell 
of nitrous gas was produced, the mixture at the 
same time assuming an orange colour, which dis- 
appeared after it had stood a short time. A very 
small piece of phosphorus having been dropped on 
about two grains of the salt (previously thrown in- 
to the acid) an explosion immediately took place, 
which blew out a great part of the mixture upon 
my hand; an accident that might have proved serious 
if I had not had water near me. | 
EXPERIMENT IX. 
Finding a great quantity of gas to be disengaged 
from this salt by the sulphuric acid, which had a 
very strong smell of nitrous gas, I put forty grains 
of the salt into a glass retort and poured upon it 
nearly an equal weight of sulphuric acid diluted with 
water. With the heat of a lamp the gas began to 
come over very rapidly, and was received in a glass 
jar placed ina bason of water. A considerable 
portion of it appeared to be absorbed by the water, 
which acquired a. yellowish colour. This colour 
disappeared on standing a few days, and a brown 
Sid {Be EES 
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