_Ferrochrome_ is used in making steel, and it also evolves
PH_{3}, and in such extreme dilution as 0.02 per cent. may cause death.
XXII.--ANTIMONY AND ITS PREPARATIONS
=Tartar Emetic= (tartarized antimony, potassio-tartrate of antimony)
occurs as a white powder, or in yellowish-white efflorescent crystals.
Vinum antimoniale contains 2 grains to a fluid ounce of the wine.
_Symptoms._--Metallic taste, rapidly followed by nausea, incessant
vomiting, burning heat and pain in stomach, purging. Dysphagia, sense of
constriction in throat, intense thirst, cramps, faintness, profound
depression; in fatal cases, giddiness and tetanic spasms. In _chronic
poisoning_, nausea, vomiting and purging, weak pulse, loss of appetite,
debility, cold sweats, great prostration, progressive emaciation. The
symptoms in chronic poisoning may simulate gastritis or enteritis.
Externally applied, it produces an eruption not unlike that of smallpox.
_Post-Mortem Appearances._--Inflammation, softening, and an aphthous
condition of the throat, gullet, and stomach, the last reddened in
patches. In chronic poisoning, inflammation also of caecum and colon.
Brain and lungs may be congested.
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