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Cover Picture (Angew. Chem. Int. Ed. Engl. 8/1985)
Publication year - 1985
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.198506171
Subject(s) - cover (algebra) , tetrahedron , citation , phase (matter) , citation database , phase diagram , crystallography , chemistry , computer science , library science , engineering , organic chemistry , mechanical engineering , biochemistry , medline , scopus
The cover shows an unfolded phase tetrahedron with the base A, B, C and the apex E. Such diagrams facilitate the understanding of the phase relationships in quaternary systems A‐B‐C‐E at constant temperature. Quaternary systems containing water (A), oil (B), amphiphile (C), and electrolyte (E) are of importance for the tertiary recovery of petroleum as well as for the preparation of concentrated solutions of pharmaceuticals. The phase tetrahedron is valid for temperatures below the temperature of the three‐phase body in the system A‐B‐C. cp α and cp ε are critical points. Further details are reported by M. Kahlweit et al. on page 654ff.