v***t
发帖数: 27100 | | i**t
发帖数: 3556 | | T*R
发帖数: 36302 | 3 邓稼先这样搞军工出身的很多都没发过像样的PAPER吧。 | r******i
发帖数: 1445 | 4 这个怎么样？
Recent researches on heavy water
By Chang, Tsing-Lien
From Science (Washington, DC, United States) (1944), 100, 29-30. Language:
Unavailable, Database: CAPLUS
Work done in Free China since 1937 is summarized (cf. C. A. 34, 306.3; 35,
5008.9, 50228). The molal f.-p. lowering of D2O with acetone as solute is 2
.00° as compared with the calcd. value of 2.004°. Expts. on the reduction
of permanganate by H2O2 showed that the autocatalysis of Mn++ ion proceeds
more quickly in the presence of D2O+ in D2O than in the presence of H3O+ in
H2O. The max. increase in velocity is 50%. D2O2 reacts directly with
permanganate ion in D2O at a rate equal to 15% of that of H2O2 in H2O.
Hydrolysis of Na and Al ethylates by D2O gave C2H5OD, b. 78.8°, d25 0.801. |
|
