Excess volumes of chlorobenzene and bromobenzene with some chloroethanes at 303.15 and 313.15 K |
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Authors: | KDayananda Reddy Hussein Iloukhani MVPrabhakara Rao |
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Institution: | Chemical Laboratories, S.V. University, Tirupati - 517 502, Andhra Pradesh India |
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Abstract: | Volume changes on mixing for the binary systems formed by chlorobenzene with 1,2-dichloroethane, 1,1,1-trichloroethane and 1,1,2,2-tetrachloroethane, and by bromobenzene with 1,2-dichloroethane, 1,1,1-trichloroethane and 1,1,2,2-tetrachloroethane, have been measured as functions of composition at 303.15 and 313.15 K. The measured excess volumes are positive over the entire range of composition for the binary systems chlorobenzene + 1,2-dichloroethane and bromobenzene + 1,2-dichloroethane at 303.15 K, and for chlorobenzene + 1,1,2,2-tetrachloroethane at 313.15 K. The measured volumes VE are negative over the entire composition range for the remaining systems, except for the system chlorobenzene + 1,1,2,2-tetrachloroethane at 303.15 K, where an inversion of the sign of VE is observed over part of the concentration range. |
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