[ 43 ] 
NertHer Mefirs. Bergman nor Wiegleb have treated of this 
falt; but here Dr. Prieftley again fteps into our affiftance; he 
found that two meafures of alkaline airewere exactly faturated 
by one of vitriolic air; hence it follows that 36,32 grs. of pure 
alkali take up 70,215 of the ftrongeft volatile vitriolic acid, and 
confequently 100 of volatile alkali take 193. In uniting to the 
volatile alkali it depofits part of its fulphur. 
Of Nitrous Ammoniac. 
100 grs. of mild concrete volatile alkali diffolved in 1000 of 
water were faturated by 446 ers. of fpirit of nitre, whofe 
{pecific gravity was 1,1418, which contained 24,8 of ftandard. 
The lofs of air was 43 grs. which indicates 33,8 grs. of pure 
alkali; the fpecific gravity of the folution was 1,0401, which 
by a teft experiment indicates iy of cryftallized falt. The weight 
of the folution was 1 503 grs. then the quantity of falt was 
Top T4046 7 grs.» which is fomewhat lefs than the quantity 
‘of pure alkali and ftandard employed, for the quantity of pure 
alkali is 33,8 grs. and that of ftandard in 446 gts. of the ni- 
trous acid employed, is 110,608, and the fum of both =144,408, 
which differs by 3,941 grs. from the falt formed; this quantity 
therefore muft have been mere water rejected from the ftandard 
acid; and if 110,608 grs. ftandard lofe 3,941 in uniting to 
volatile alkalies, 100 parts ftandard fhould lofe about 3;5, and 
G 2 hence 
