Heated in substance, it crepitates and chars; and if heat be increased,
the metal is deposited. Treated with sulphuretted hydrogen, a
characteristic orange-red sulphide is formed.
A drop of the solution evaporated leaves crystals, either tetrahedric,
or cubes with edges bevelled off. Sulphuretted hydrogen passed through
gives the orange-red precipitate above named. Dilute nitric acid gives a
white precipitate, soluble in excess, and also in tartaric acid. Marsh's
and Reinsch's processes are applicable for the detection of antimony,
but Reinsch's is the better. Reinsch's process gives a violet deposit
instead of the black, lustrous one of arsenic.
=Chloride of Antimony= (Butter of Antimony).--A light yellow or dark red
corrosive liquid.
_Symptoms._--Violet corrosion and irritation of the alimentary canal,
with the addition of narcotic symptoms. After death the mucous membrane
of the entire canal is charred, softened, and abraded.
_Treatment._--As for tartar emetic; magnesia in milk.
XXIII.--MERCURY AND ITS PREPARATIONS
The most important salt of mercury, toxicologically, is corrosive
sublimate. Other poisonous preparations are red precipitate, white
precipitate, mercuric nitrate, the cyanide and potassio-mercuric iodide.
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