mercuric sulfide

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mercuric sulfide

n.
A poisonous compound, HgS, having two forms:
a. Black mercuric sulfide, a black powder obtained from mercury salts or by the reaction of mercury with sulfur, used as a pigment.
b. Red mercuric sulfide, a bright scarlet powder occurring naturally or prepared by heating mercury with sulfur, that is sensitive to heat and light and is used as a pigment. Also called cinnabar, vermilion.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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References in periodicals archive
Conversion of the water soluble mercuric cation to the water insoluble mercuric sulfide salt can significantly reduce the uptake of Hg by Lumbricus worms.
Effects of soil mercury concentrations on mercury bioaccumulation in earthworms
(3) Sulfide combines with ionized mercury ([Hg.sup.+2]) in seawater to form mercuric sulfide (HgS).
How does mercury get into fish? A WHOI scientist tackles the mercury cycle
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