... (55-34-31(49)30(48)29(47)22(18-43)53-34)32(50)35(52-21)54-27-10 ... -44)8-12-39(6)24(37)9-13-42-25-16-36(2,3)14-15-41(25,20-51-42)26(45)17-40(39,42 ... )7/h9,13,21-35,43-50H,8,10-12 ... +,28+,29-,30+,31-,32-,33+,34+,35+,37+,38+,39-,40+,41-,42+/m1/s1 density1.36g/cm3 boiling point 893.7°C ...