906
D. T. BRECR, J. L. HARVEY AXD H. 11. HAEXDLER
responding to a composition of 69 per cent hydrazine hy \\-eight (or 56 mole per cent). The exact composition of the \\-ater-rich eutectic could not he det ermined experimentally. 4. By extrapolation, anhydrous hydrazine vxs found to ha\-e n melting point of 2.O0C. 5 . Enrichment of dilute hydrazine solutions by cooling and removal of ivat'er as ice Tras found possible but not pract'ical. REFERESCES (1) B R U H LJ. , W.: Ber. 30, 159 (1897). (2) DE BRITS, L O B R YBer. : 28, 3085 (1895). (3) CURTIUS, T H . : Ber. 20, 1632 (1887). (4) FRIEDRICHS, F . : %. anorg. Chem. 127, 221 (1923). ( 5 ) Office of the Publicat,ions Board, Depnrtment of Comnicrce, Reports SO arid 196. (6) P E s X E a r a s , R.-k,, A X D AUDRIETII, 1,. F . : hn:i!. Chem. 11, 105s (1945). (7) PUTOCHIS, S . : T.S.S.R. Saucno teckn. Otdc!., T-.S.S.C h . (russo: S r . 16, 52 (1023). (8) SEMISHIS,V.I . : ,J. Gen. Chcni. (V.S.S.R.) 8, 654 (19%). (9) VALDES, P . , ASD H I L G C R T €1.: , %. ph>-sili. Cheni. A165, 241 (1033).
THE S o L u m x n - OF XSTI~IOST(III) FLT-OIIIDE ISOKGAYIC COlII'UI-XDS1 DOSA1.D JT. B1iJ*:CI
