nto the trisulphide and sulphur.
An antimony phosphide and arsenide are known, as is also a
thiophosphate, SbPS4, which is prepared by heating together antimony
trichloride and phosphorus pentasulphide.
Many organic compounds containing antimony are known. By distilling an
alloy of antimony and sodium with mythyl iodide, mixed with sand,
trimethyl stibine, Sb(CH3)3, is obtained; this combines with excess of
methyl iodide to form tetramethyl stibonium iodide, Sb(CH3)4I. From
this iodide the trimethyl stibine may be obtained by distillation with
an alloy of potassium and antimony in a current of carbon dioxide. It
is a colourless liquid, slightly soluble in water, and is
spontaneously inflammable. The stibonium iodide on treatment with
moist silver oxide gives the corresponding tetramethyl stibonium
hydroxide, Sb(CH3)4OH, which forms deliquescent crystals, of alkaline
reaction, and absorbs carbon dioxide readily. On distilling trimethyl
stibine with zinc methyl, antimony tetra-methyl and penta-methyl are
formed. Corresponding antimony compounds containing the ethyl group
are known, as is also a tri-phenyl stibine, Sb(C6H5)3, which is
prepared from antimony trichloride, sodium and monochlorbenzene. See
Chung Yu Wang, _Antimony_ (1909).
_Antimony in Medicine._--So far back as Basil Valentine and Paracelsus,
antimonial preparations were in great vogue as medicinal agents, and
came to be so much abused that a prohibition was placed upon their
employment by the Paris parlement in 1566. Metallic antimony was
utilized to make goblets in which wine was allowed to stand so as to
acquire emetic properties, and "everlasting" pills of the metal,
supposed to act by contact merely, were administered and recovered for
future use after they had fulfilled their purpose. Antimony compounds
act as irritants both externally and internally. Tartar emetic (antimony
tartrate) when swallowed, acts directly on the wall of the stomach,
producing vomiting, and after absorption continues this effect by its
action on the medulla. It is a powerful cardiac depressant, diminishing
both the force and frequency of the heart's beat. It depresses
respiration, and in large doses lowers temperature. It depresses the
nervous system, especially the spinal cord. It is excreted by all the
secretions and excretions of the body. Thus as it passes out by the
bronchial mucous membrane it increases the amount of secretion and
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