VOLATILE CHLORIDES WITH AMMONIA. 39 
rated with ammonia, is when the aqueous solution does not in 
the least redden litmus paper. The litmus paper, moistened 
with the solution, becomes, however, red on drying; but this 
is the case with many ammoniacal salts, with chloride of am- 
monium, with the sulphate of the oxide of ammonium, with 
sulphat-ammon, and parasulphat-ammon. Nitrate of silver 
should produce a perfectly white precipitate in the solution. 
The solution reacts towards a solution of a salt of barytes 
just as the solution of sulphat-ammon, as I have above observed : 
I will here add, that the opakeness of sulphate of barytes be- 
comes stronger, especially on the addition of hydrochloric acid. 
No precipitate is produced by chloride of strontium, except on 
being boiled, and when, at the same time, free hydrochloric 
acid has been added. Only a part of the ammonia is thrown 
down from the solution by chloride of platinum. 
This compound powdered attracts a very slight quantity of 
moisture, in the same way as sulphat-ammon, and in general 
most pulverized bodies, but does not deliquesce. 
1:383 gramme of the compound, dissolved in water, was 
treated with nitric acid, and then with nitrate of silver; 1°2505 
gramme chloride of silver was obtained. The oxide of silver was 
removed from the filtered solution by hydrochloric acid; upon 
which a solution of the chloride of barium was added in excess, 
the whole evaporated to dryness,the dried mass heated to an inci- 
pient red heat, and hydrochloric acid and wateradded to it; in fact, 
it was treated in the same manner exactly as the sulphat-ammon, 
when the quantity of sulphuric acid was to be determined in it: 
2-040 grammes sulphate of barytes were obtained. The quantity 
of chloride of silver corresponds to 22°306 per cent. of chlorine, 
and the quantity of the sulphate of barytes to 20°35 per cent. 
of sulphur in the compound. 
These quantities correspond te a compound, which consists of 
one atom of the sulphate of the chloride of sulphur, and of 
eighteen simple, or nine double atoms of ammonia (S CE S> 
+9NH)®). It is thus constituted in 100 :— wie 
ATC i wt lo abt ib tiie. ie od gi BONDS 
REE ST reo: 0 2a) Wobey recap arr iali»\ 20°26 
emrrrews fiona tA 
SMUD ies, 5. ali ote 5, aah idm teers» S2°SE 
100°00. 
