Zinc Compounds 化学特性,用途語,生産方法
安全性プロファイル
Variable toxicity, but
generally of low toxicity. However, zinc
salts, such as chromates and arsenates, are
experimental carcinogens. Zinc is not
inherently a toxic element. However, when
heated, it evolves a fume of zinc oxide,
whch, when inhaled fresh, can cause a
disease known as “brass founders,” “ague,”
or “brass chdls,” resulting in a sweet taste,
throat dryness, cough, weakness, generalized
aching, fever, nausea, and vomiting. It is
possible for people to become immune to it,
but this immunity can be broken by
cessation of exposure of only a few days.
Zinc oxide dust that is not freshly formed is
virtually innocuous. There is no cumulative
effect from the inhalation of zinc fumes.
Exposure to zinc chloride fumes can cause
damage to the mucous membranes of the
nasopharnp and respiratory tract, and gve
rise to a pale gray cyanosis; fatalities have
resulted. Soluble salts of zinc have a harsh
metahc taste; small doses can cause nausea
and vomiting, whereas larger doses cause
violent vomiting and purging. Some cases of
intoxication have been reported due to
drinking liquids stored in galvanized
containers, and in dialysis patients, using a
dlalyzate prepared with water that had been
stored in a galvanized tank. In general, the
continued administration of zinc salts in
small doses has no effect in humans except
those of disordered digestion and
constipation. Workers in zinc refining have
been reported to suffer from a variety of
non-specific intestinal, respiratory, and
nervous symptoms. Ulceration of the nasal
septum and eczematous dermatosis are also
reported. It has been stated that zinc oxide
or zinc stearate dust can block the ducts of
the sebaceous glands and give rise to a
papular, pustular eczema in workers engaged
in packing these compounds into barrels.
Sensitivity to zinc oxide in humans is
extremely rare. Zinc chloride and zinc
sulfate, because of caustic action, can cause
ulceration of the fingers, hands, and
forearms of those who use these com-
pounds as a flux in soldering or other
industrial use. Ths condtion has even been
observed in men who handle radway ties
that have been impregnated with ths
material. Common air contaminants. When
heated to decomposition it emits toxic
fumes of ZnO.
Zinc Compounds 上流と下流の製品情報
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