72 Experiments on Bichlorure of Sulphur, &c. 
granate red, gradually became orange colored, then of a yellow 
orange color. The light refracted by the ball containing the 
bichlorure, assumed the finest violet hue, like that produced by 
vapor of iodine. 'Thiscolor lasted a very long time. 
Among the vapors thrown off at first, the writer thought he 
remarked chlorohydric ether and sulphohydric ether.. These va- 
pors made the water through which they passed milky, but this. 
effect soon ceased. 'Towards the end of the operation, the gases 
evolved burned with a very fuliginous flame, like bicarbure of 
hydrogen, pure; however they by no means had the same smell. 
There appearing to be no absorption, the liquid was gradually 
heated to bring about absorption, by producing an atmosphere 
of vapors; suddenly the yellow liquid assumed a raspberry red 
color, but no marked absorption was effected. Its bulk was very 
viscous like a thick syrup; its smell was penetrating and very 
enduring, similar to that of blackberries or raspberries; its flavor 
was at first sweet, then very pungent. 
The next day, a deposit was found of a number of small n nee- 
dle-shaped crystals of a deep brown. 
Neither water, alcohol, nor ether, appears to dissolve these 
crystals to any decided amount ; however, alcohol discolors them, 
whilst it colors itself and leaves a drop of red liquid by evapora- 
tion. Water casts off from the alcoholic solution a white pow- 
dery deposit, and leaves a red drop at the bottom of the vessel. 
Nitric acid, cold, appears not to act, but warm, it dissolves the 
crystals ul gives a yellow sadinient of sulphur. 
The crystals, having been several times washed with atest, 
assumed a light chocolate color; after being strained through 
pieces of blotting paper, they were discolored, leaving on the 
paper a very volatile oil which rapidly disappeared, but there 
ined a red stain on the paper, which shows that the volatile 
oil is distinct from that species of coloring matter. The crystals 
strained through paper, were placed in the pneumatic vacuum in 
the presence of sulphuric acid and moist fragments of potash ; 
the surface of the acid became of a decidedly roseate hue and 
besprinkled with small oily drops; the potash had absorbed 
some of the chlorine. These crystals. were then pretty white, and 
burned in a very li up and emitting a flame 
which betokened the presence both of sulphur and of a resinous 
matter. Sulphuric acid appears powerless on these crystals, un- 
