Mercury(II) sulfide

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
crystal system :Three sides
Merck :14,5888
Space group :P3121
Solubility Product Constant (Ksp) :pKsp: 52.4
Lattice constant :

a/nm	b/nm	c/nm	α/o	β/o	γ/o	V/nm3
0.41317	0.41317	0.94451	90	90	120	0.1396

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.
Hardness, Mohs :3.0
CAS DataBase Reference :1344-48-5(CAS DataBase Reference)
EPA Substance Registry System :Mercury sulfide (HgS) (1344-48-5)

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H317 May cause an allergic skin reaction Sensitisation, Skin Category 1 Warning P261, P272, P280, P302+P352,P333+P313, P321, P363, P501
Precautionary statements:	P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P272 Contaminated work clothing should not be allowed out of the workplace. P280 Wear protective gloves/protective clothing/eye protection/face protection. P302+P352 IF ON SKIN: wash with plenty of soap and water. P333+P313 IF SKIN irritation or rash occurs: Get medical advice/attention.