Melting point :1114°C
Boiling point :1281°C (estimate)
Density :7.5 g/mL at 25 °C(lit.)
refractive index :3.921
storage temp. :2-8°C
solubility :Soluble in strong HNO₃, in excess of hot HCl
form :Metallic Crystals, Powder Lump
color :White
Specific Gravity :7.5
Water Solubility :Soluble in water (0.00086g/L) and acid. Insoluble in alcohol, and potassium hydroxide.
Crystal Structure :Cubic, Halite Structure - Space Group Fm3m
Merck :14,5421
Solubility Product Constant (Ksp) :pKsp: 27.1
Exposure limits :ACGIH: TWA 0.05 mg/m3
NIOSH: IDLH 100 mg/m3; TWA 0.050 mg/m3 Stability :Stable. Incompatible with oxidizing agents, acids, water.
InChIKey :XCAUINMIESBTBL-UHFFFAOYSA-N
CAS DataBase Reference :1314-87-0(CAS DataBase Reference)
EPA Substance Registry System :Lead(II) sulfide (1314-87-0)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H225 Highly Flammable liquid and vapour Flammable liquids Category 2 Danger P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501 H304 May be fatal if swallowed and enters airways Aspiration hazard Category 1 Danger H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362 H336 May cause drowsiness or dizziness Specific target organ toxicity,single exposure; Narcotic effects Category 3 Warning P261, P271, P304+P340, P312,P403+P233, P405, P501 H373 May cause damage to organs through prolonged or repeated exposure Specific target organ toxicity, repeated exposure Category 2 Warning P260, P314, P501 H411 Toxic to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 2
Precautionary statements:	P201 Obtain special instructions before use. P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P273 Avoid release to the environment. P302+P352 IF ON SKIN: wash with plenty of soap and water. P308+P313 IF exposed or concerned: Get medical advice/attention.