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Mercury Sulfide (HgS)-Granules

Mercury Sulfide (HgS)-Granules

CAS: 1344-48-5
Molecular Formula: HgS
Purity: 99.999%
Products Code: TR801600GN
Specification Model: 3 mm - 12 mm
Hazardous Class: Class 6.1
EINECS No.: 215-696-3
UN No.: UN1638
Package Class: PG II
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Mercury Sulfide (HgS)-Granules introduce:

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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