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It is produced by the reaction of 1,1-dichloroethylene and hydrogen chloride; it
boils at 74.1°C (165°F) and freezes at -32.4° C (-22.7°F). Its toxicity is very low.
The other isomer, 1,1,2-trichloroethane, by contrast, is a dangerous poison.
A solution of zinc chloride is easily produced from zinc and hydrochloric acid; it
cannot be evaporated to dryness without considerable ... Zinc is one of the
minerals that help break up proteins in food and remove hydrogen from the liver.
It forms lustrous crystals and fumes in moist air with liberation of hydrogen
chloride gas. It sublimes at 331° C (628°F) and melts at 437° C (819°F) under 25
atmospheres pressure. The compound is soluble in water and in alcohol.
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This is the 198215th Edition, in two halves, with the Macropaedia and the Micropaedia. First published in 1768, the publisher is the oldest English-language encyclopedia still in print. Two Scottish ... Read full review