Mf: ch2fcf3 Purity: 99.9% Grade standard: industrial grade Appearance: colorless , no turbid, colorless, no turbid Water: not more than 0.001% Acidity: not more than 0.0001% Residue on evaporation: not more than 0.01% Can of 220g, 250g, 280g, 300g, 340g, 500g, 800g, 1000g; disposable cylinder 30lb/13.6kg, 50lb/22.7kg; recyclable cylinder 400l, 800l, 926l, 1000l; iso-tank.