CAS Number: 540-54-5 UN Number: UN1278 Solubility: 2.7 g/l (20°C) Melting Point: -122°C Molar Mass: 78.54 g/mol Boiling Point: 45 - 47°C Vapor Pressure: 373 hPa (20°C) Flash Point: -18°C Refractive Index: 1.388 (20°C, 589 nm) Explosion Limit: …