(SOLID PLUS LIQUID) PHASE-EQUILIBRIA AND SOLID-COMPOUND FORMATION IN (TRICHLOROMETHANE PLUS N,N-DIMETHYLFORMAMIDE, OR PYRIDINE, OR N, N-DIMETHYLANILINE)

(Solid + liquid) phase diagrams have been constructed for (trichlorome thane + N,N-dimethylformamide, or pyridine, or N,N-dimethylaniline). C ongruently melting solid addition compounds form with the empirical fo rmulae: HCON(CH3)(2) . CHCl3, and C5H5N . CHCl3. The HCON(CH3)2 . CHCl 3 is interesting in that a metastable form can be made to crystallize from solution. No solid addition compound forms in {(1 - x)CHCl3 + xC( 6)H(5)N(CH3)(2)}. (C) 1997 Academic Press Limited.