c. The essential oils absorb nitrous oxide to a greater extent than either alcohol or ether.
,5 cubic inches of oil of carui combined with 1,2 cubic inches of nitrous oxide at 51°. The color of the oil thus impregnated was rather paler than before.
Nitrous oxide is expelled unaltered from impregnated oil of carui, by heat.
1 of oil of turpentine absorbed nearly 2 of nitrous oxide, at 57°. Its properties were not sensibly altered from this combination, and the gas was expelled from it undecompounded, by heat.
d. As well as the essential oils, the fixed oils dissolve nitrous oxide at low temperatures, whilst at high temperatures they do not remain in combination.
1 of olive oil absorbed, at 61°, 1,2 of nitrous oxide, but without undergoing any apparent physical change.
III. Action of Fluid Acids on Nitrous Oxide.
a. Nitrous oxide exposed to concentrated sulphuric acid, undergoes no change, and suffers no diminution, that may not be accounted for from the abstraction of a portion of its water by the acid.
b. Nitrous oxide is scarcely at all soluble in nitrous acid, and exposed to that substance, undergoes no alteration.
c. Muriatic acid, of specific gravity 1,14 absorbs about a third of its bulk of nitrous oxide. It suffers no apparent change in its properties from being thus impregnated, and the gas is again given out from it on the application of heat.