Melting point :3°C
Boiling point :115-117 °C(lit.)
Density :1.338 g/mL at 25 °C(lit.)
refractive index :n20/D 1.6465(lit.)
Flash point :>230 °F
storage temp. :2-8°C
form :liquid
color :amber
Water Solubility :Immiscible with water.
Sensitive :Moisture Sensitive
Exposure limits :ACGIH: TWA 0.2 mg/m3
NIOSH: IDLH 1 mg/m3; TWA 0.2 mg/m3 InChI :1S/C12H10Se/c1-3-7-11(8-4-1)13-12-9-5-2-6-10-12/h1-10H
InChIKey :ORQWTLCYLDRDHK-UHFFFAOYSA-N
SMILES :[Se](c1ccccc1)c2ccccc2
CAS DataBase Reference :1132-39-4(CAS DataBase Reference)
EPA Substance Registry System :Diphenyl selenide (1132-39-4)

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:	P260 Do not breathe dust/fume/gas/mist/vapours/spray. P264 Wash hands thoroughly after handling. P264 Wash skin thouroughly after handling. P273 Avoid release to the environment. P301+P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. P314 Get medical advice/attention if you feel unwell.