Properties :
Vapor density 3.2 (vs air)
Vapor pressure :
  22 mmHg (20°C)
  26 mmHg (25°C)

Autoignition temp. 997 °F
Expl. lim. : 7 %
Total impurities :
  ≤ 0.0001 % thiophene
  ≤ 0.001 % free acid (as HCl)
  ≤ 0.001 % free alkali (as NaOH)
  ≤ 0.001 % non-volatile matter
  ≤ 0.003 % S-compounds (as S)
  ≤ 0.02 % water (Karl Fischer)
Refractive index n/D = 1.496 (lit.)
bp 110-111°C(lit.)
mp -93°C (lit.)
density = 0.865 g/mL at 25°C (lit.)
Cation traces :
  Al : ≤ 0.5 mg/kg
  B : ≤ 0.01 mg/kg
  Ba : ≤ 0.1 mg/kg
  Ca : ≤ 0.5 mg/kg
  Cd : ≤ 0.05 mg/kg
  Co : ≤ 0.02 mg/kg
  Cr : ≤ 0.02 mg/kg
  Cu : ≤ 0.02 mg/kg
  Fe : ≤ 0.1 mg/kg
  Mg : ≤ 0.1 mg/kg
  Mn : ≤ 0.02 mg/kg
  Ni : ≤ 0.02 mg/kg
  Pb : ≤ 0.1 mg/kg
  Sn : ≤ 0.1 mg/kg
  Zn : ≤ 0.1 mg/kg.

RIDADR : UN 1294 / Classe danger : 3 / Packing Group : 2.