MERCURY(II) SULFIDE manufacturers and suppliers

Mercury(II) sulfide suppliers

Properties

Melting point:: 583.5 °C(lit.)

Boiling point:: 584°C

Density: 8.1 g/mL at 25 °C

solubility: insoluble in H2O; soluble in acid solutions, ethanol

form: Powder

color: red

Water Solubility: Soluble in water (0.00001 g/L).

Crystal Structure: Cubic, Sphalerite Structure - Space Group F(-4)3m

Merck: 14,5888

Solubility Product Constant (Ksp): pKsp: 52.4

Exposure limits: ACGIH: TWA 0.025 mg/m3 (Skin)
NIOSH: IDLH 10 mg/m3; TWA 0.05 mg/m3; Ceiling 0.1 mg/m3

Stability:: Stable.

Safety Information

Symbol(GHS): GHS07

Signal word: Warning

Hazard statements: H317

Precautionary statements: P261-P272-P280-P302+P352-P333+P313-P362+P364

Hazard Codes: N-T,Xi

Risk Statements: 50/53-36-33-23/24/25-43-31

Safety Statements: 61-60-45-36/37/39-28A-26-36/37

RIDADR: 2025

WGK Germany: -

RTECS: OX0720000

F: 8

TSCA: Yes

HazardClass: 6.1

PackingGroup: II

HS Code: 28521000

Use

Mercury(II) sulfide has several modifications, the only two stable allotropic forms are: 1. the red hexagonal form known as cinnabar (alpha form), and 2. the black cubic modification (beta form). Cinnabar is a red crystalline or powdery substance; hexagonal crystal system; refractive index 2.854; density 8.10 g/cm3; sublimes at 583.5C; color changes to brown at 250C and converts to black sulfide at 386C; reverts to red color on cooling; insoluble in water, alcohol and nitric acid; soluble in aqua regia and solutions of alkali metal sulfides; decomposed by hot concentrated sulfuric acid. Black sulfide is a black amorphous powder or crystalline substance (beta form); cubic structure; metastable at ordinary temperatures; converts to red sulfide by sublimation at ordinary pressure; density 7.73 g/cm3; melts at 583.5C; insoluble in water, alcohol and nitric acid; soluble in aqua regia, alkalies, and solutions of alkali metal sulfides.

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