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mercuric sulphide

noun

  1. a compound of mercury, usually existing as a black solid (metacinnabarite) or a red solid (cinnabar or vermilion), which is used as a pigment. Formula: HgS Systematic namemercury(II) sulphide

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Example Sentences

Metacinnabarite is a cubic form of mercuric sulphide, this compound being dimorphous.

There are two varieties of mercuric sulphide, the red and the black; unfortunately the red is liable to change into the black.

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