- Definition of HgS
HgS, also known as Cinnabar, is a compound of mercury (Hg) and sulfur (S). Its English name is Mercuric sulfide. Its atomic structure consists of one mercury atom and one sulfur atom. The atomic mass of HgS is 232.66 g/mol.
1.4. Regarding the ion structure, the mercury ion has a valence index II (+2) and the sulfur ion has a valence index II (-2).
- Properties: HgS
2.1 Physical properties of HgS: HgS is solid under standard conditions, has a red or black color, and has no characteristic smell. The pH of HgS can change depending on the environment in which it exists.
2.2 Chemical properties of HgS: HgS is insoluble in water and acids, which is quite strange as most other forms of mercury compounds are easily soluble in acids.
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Common chemical reactions of HgS: HgS rarely participates in chemical reactions, the most typical of which is the reaction with chlorine to form the compound HgCl2.
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Preparation of HgS
4.1 Laboratory synthesis of HgS: HgS can be synthesized in the laboratory through the reaction between mercury and sulfur.
4.2 Industrial synthesis of HgS: On an industrial scale, HgS is often produced from Cinnabar ore through a melting process.