436 Professor Kane on the Action of Ammonia 
Therefore 89,60 of the yellow powder contain 
Mercury 78,60 
Chlorine 7,06 
and 100 contain 
Mercury 87,95 
Chlorine 8,44 
C.—100 grains of white precipitate were boiled with water until completely de- 
composed ; the resulting yellow powder weighed 91,15 grains. ‘The liquor was cau- 
tiously evaporated to dryness, and gave 10,23 of sal-ammoniac, consisting of 
Chlorine 6,76 
Hydrogen ,19 > 10,23 
Ammonia 3,28 
Therefore there are obtained, by this experiment, for the constituents of yellow powder, 
Mercury 86,23 
Chlorine 7,77 
Ammonia 3,83 
D.—It has been already stated, that when this powder is heated, it is resolved into 
ammonia, azote, water, calomel, and quicksilver. Having found that, by performing 
this operation in a very small retort, the water and gases could be dissipated without 
any remarkable loss of the other constituents, I made some trials in this way to de- 
termine the amount of the chlorine and quicksilver. For this purpose a higher tem- 
perature is required than for the corresponding analysis of white precipitate, and the 
condensation of the mercurial vapour must be very carefully effected. In other 
respects, the manipulation was the same, and the following table contains the results : 
Exot Quantity of Subliemd Sublimed Residue 
cB Material. Residue. from 100 parts. 
] 14,30 13,37 93,50 
2 19,65 18,53 94,30 
3 93502 29,35 94,22 
Per cent. mean 94,01 
From this result we can easily calculate the quantities of chlorine and mercury 
the residue contains, for— 
Let m = the residue = 94,01 
= the quantity of chlorine 
the quantity of mercury 
atomic weight of chlorine = 35,42 
atomic weight of mercury = 202,8 
cae s 
{I 
