... Uranium-plutonium system 1. 75 0.14 × 10-7 56 .1 3 .50 0. 15 × 10-7 57 .4 5. 25 0.18 × 10-7 59 .0 7.00 0.28 × 10-7 63.6 8. 75 0.44 × 10-7 68.2 10 .50 0.88 × 10-7 74.9 12. 25 1.18 × 10-7 78.7 ... 128.0 184. 05 . . . α 107 141.4 -2.08 1.44 β 147 108 .5 -0.62 2.23 γ 232 107.8 -0 .50 3.81 δ 352 100.4 0.72 5. 92 δ' 462 102.1 4.43 7.63 ε 50 1 110.6 8.31 Sources: Ref 57 6, 57 8, 58 1, 58 4 (a) ... Vol 11, 1 959 , p 278-283 57 5. J M. Fournier and R. Troc, Bulk Properties of the Actinides, Chapter 2 in Handbook on the Physics and Chemistry of the Actinides, A.J. Freeman and G.H. Lander, Ed.,...