Makarov, Dmitriy M.’s team published research in Journal of Chemical Thermodynamics in 2020-12-31 | CAS: 598-50-5

Journal of Chemical Thermodynamics published new progress about Density. 598-50-5 belongs to class isoquinoline, name is 1-Methylurea, and the molecular formula is C2H6N2O, Synthetic Route of 598-50-5.

Makarov, Dmitriy M. published the artcileDensity measurements of water – N-methylacetamide mixture at temperatures from 274.15-333.15 k and ambient pressure and comparison of the volumetric characteristics of some amides, Synthetic Route of 598-50-5, the main research area is water methylacetamide density atm pressure molar volume.

The densities ρ of the binary mixture of N-methylacetamide with water have been measured in the entire composition range of the mixture liquid state at T = (278.15, 288.15, 298.15, 308.15, 323.15 and 333.15) K at atm. pressure (0.1 MPa). The densities were also measured for dilute aqueous solutions of N-methylacetamide (from 0.00455-0.05743 mol fractions) at a temperature from 274.15-283.15 K, with an increment of 1 K at atm. pressure, in order to study the effect of N-methylacetamide on the temperature of the maximum water d. These data were later used to calculate the excess molar volumes . VEm., partial molar volumes of water V1 and N-methylacetamide V2, and to obtain the limiting partial molar volumes V∞i and limiting partial molar isobaric expansion of N-methylacetamide E∞P,2. The following volumetric characteristics were then obtained from these values: the shift temperature of the maximum d., Hepler’s constant, the pressure derivative of the second virial coefficient, relative volumetric parameter of hydration. The obtained parameters show the effect of N-methylacetamide on water. The study also included a comparison of these volumetric characteristics for several aqueous solutions of amides: acetamide, urea and N-methylurea. The paper also presents a comparison of these parameters at the changes in the structure of amide mols.

Journal of Chemical Thermodynamics published new progress about Density. 598-50-5 belongs to class isoquinoline, name is 1-Methylurea, and the molecular formula is C2H6N2O, Synthetic Route of 598-50-5.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem