Melting point :80-82 °C (lit.)
Boiling point :200.05°C
Density :2.132 g/mL at 25 °C (lit.)
refractive index :1.8710
storage temp. :2-8°C
form :Crystals or Crystalline Powder
color :Light brown to brown
Specific Gravity :2.132
Water Solubility :Soluble in methanol. Insoluble in water.
Sensitive :Air & Light Sensitive
BRN :1730870
Dielectric constant :3.4（Ambient）
Stability :Stable, but may discolour on exposure to light. Incompatible with strong bases, strong oxidizing agents.
CAS DataBase Reference :624-73-7(CAS DataBase Reference)
EPA Substance Registry System :Ethane, 1,2-diiodo- (624-73-7)

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362 H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:	P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash hands thoroughly after handling. P264 Wash skin thouroughly after handling. P271 Use only outdoors or in a well-ventilated area. P280 Wear protective gloves/protective clothing/eye protection/face protection. P302+P352 IF ON SKIN: wash with plenty of soap and water. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.