Densities of mixtures of heptane + methyl 1,1-dimethylethyl ether at temperatures between 243.16 and 333.14 K
1995
With government mandates for including oxygenates (alcohols or ethers) in motor fuels, there is a need to develop accurate density tables for custody transfer purposes. This paper reports densities and excess volumes of binary mixtures of heptane and methyl 1,1-dimethylethyl ether (methyl tert-butyl ether, MTBE) at 243.16, 278.15, 288.17, 293,10, 313.14, and 333.14 K. Data were obtained at 0.34, 1.72, and 4.83 MPa. Mixture compositions were between 5 and 95 mol %. Equimolar excess volumes are about 0.4 cm{sup 3}/mol and are weak functions of temperature and pressure.
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