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https://doi.org/10.1021/acs.jced.5b00491
Copy DOIPublication Date: Feb 2, 2016 | |
Citations: 4 |
We present simple %-level accuracy universal correlations for densities of aqueous electrolyte solutions at 298.15 K and 0.1 MPa. The developed expressions and parameters are based on 1032 experimental density data points for 56 aqueous single electrolyte solutions including chlorides, bromides, iodides, bicarbonates, carbonates, sulfates, nitrates, nitrites, phosphates, hydrogen phosphates, and dihydrogen phosphates. The correlations relate the solution density with “excess” mass fraction of electrolytes in solution. With molar mass and concentrations of electrolytes as input, the correlation yields density results for all 56 electrolytes with the average error of 0.97% and the maximum error of 8.05%. When grouping the electrolytes as either structure making, structure breaking, or structure superbreaking, the correlations yield the average error of 0.59% and the maximum error of 3.45%. The correlations should be very useful in estimating the density of aqueous single and multicomponent electrolyte solut...
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