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1344-48-5
HgS
801600PD
99.9%-99.999 %
- 200 mesh
215-696-3
Class 6.1
UN1638
PG II
Characteristic
Mercury sulfide, mercuric sulfide, mercury sulphide, or mercury(II) sulfide is a chemical compound composed of the chemical elements mercury and sulfur.
Chemical formula：HgS
CAS#:1344-48-5
Molar mass：232.66 g/mol
Density：8.10 g/cm3
Melting point：580 °C (1,076 °F; 853 K) decomposes
Solubility in water：insoluble
Band gap：2.1 eV (direct, α-HgS)
Magnetic susceptibility (χ)：−55.4·10−6 cm3/mol
Refractive index (nD)：w=2.905, e=3.256, bire=0.3510 (α-HgS)
Application
When α-HgS is used as a red pigment, it is known as vermilion. The tendency of vermilion to darken has been ascribed to conversion from red α-HgS to black β-HgS. However β-HgS was not detected at excavations in Pompeii, where originally red walls darkened, and was attributed to the formation of Hg-Cl compounds (e.g., corderoite, calomel, and terlinguaite) and calcium sulfate, gypsum.
Characteristic
Mercury sulfide, mercuric sulfide, mercury sulphide, or mercury(II) sulfide is a chemical compound composed of the chemical elements mercury and sulfur.
Chemical formula：HgS
CAS#:1344-48-5
Molar mass：232.66 g/mol
Density：8.10 g/cm3
Melting point：580 °C (1,076 °F; 853 K) decomposes
Solubility in water：insoluble
Band gap：2.1 eV (direct, α-HgS)
Magnetic susceptibility (χ)：−55.4·10−6 cm3/mol
Refractive index (nD)：w=2.905, e=3.256, bire=0.3510 (α-HgS)
Application
When α-HgS is used as a red pigment, it is known as vermilion. The tendency of vermilion to darken has been ascribed to conversion from red α-HgS to black β-HgS. However β-HgS was not detected at excavations in Pompeii, where originally red walls darkened, and was attributed to the formation of Hg-Cl compounds (e.g., corderoite, calomel, and terlinguaite) and calcium sulfate, gypsum.
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