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mercuric sulfide

   Also found in: Dictionary/thesaurus, Wikipedia, Hutchinson 0.03 sec.
mercuric sulfide [mər′kyu̇r·ik ′səl‚fīd]
(inorganic chemistry)
HgS
The black variety is a poisonous powder; insoluble in water, alcohol, and nitric acid, soluble in sodium sulfide solution; sublimes at 583°C; used as a pigment. Also known as black mercury sulfide; ethiops mineral.
The red variety is a poisonous powder; insoluble in water and alcohol; sublimes at 446°C; used as a medicine and pigment. Also known as Chinese vermilion; quicksilver vermilion; red mercury sulfide; vermilion.


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E[acute accent]In his letter, Noel Spindler, president of IFS states: "Our patented technology, called Integrated Fixation System or IFS, as it comes into contact with the mercury, chemically converts it into mercuric sulfide, which is insoluble and non-hazardous.
 
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