Melting point :60 °C
Boiling point :202 °C / 11mmHg
Density :1.5570
refractive index :1.7430
storage temp. :Store below +30°C.
form :Powder
color :yellow
Specific Gravity :1.84
Water Solubility :Insoluble
Hydrolytic Sensitivity :8: reacts rapidly with moisture, water, protic solvents
BRN :2047179
Exposure limits :ACGIH: TWA 0.2 mg/m3
NIOSH: IDLH 1 mg/m3; TWA 0.2 mg/m3 CAS DataBase Reference :1666-13-3(CAS DataBase Reference)
NIST Chemistry Reference :Diselenide, diphenyl(1666-13-3)
EPA Substance Registry System :Diselenide, diphenyl (1666-13-3)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H373 May cause damage to organs through prolonged or repeated exposure Specific target organ toxicity, repeated exposure Category 2 Warning P260, P314, P501 H410 Very toxic to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 1 Warning P273, P391, P501
Precautionary statements:	P273 Avoid release to the environment. P314 Get medical advice/attention if you feel unwell.