Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Solubility of 1-Hydroxyethane-1,1-diphosphonic Acid Monohydrate in Aqueous Acetic Acid Mixtures

Hao, L.[Lin], Wei, H.[Hongyuan]
J. Chem. Eng. Data 2008, 53, 7, 1679-1681
ABSTRACT
The solubility of 1-hydroxyethane-1,1-diphosphonic acid (HEDP) monohydrate (A) in binary acetic acid (B) + water (C) solvent mixtures was measured by using the isothermal method from (293.15 to 328.15) K. A laser monitoring observation technique was employed to determine the dissolution of the solid phase in a solid + liquid mixture. The solubility data were correlated by the combined nearly ideal binary solvent (CNIBS)/Redlich-Kister equation.
Compounds
# Formula Name
1 C2H4O2 acetic acid
2 C2H8O7P2 etidronic acid
3 H2O water
Datasets
The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type Compound-# Property Variable Constraint Phase Method #Points
  • POMD
  • 1
  • 2
  • 3
  • Mole fraction - 2 ; Liquid
  • Temperature, K; Liquid
  • Solvent: Mole fraction - 3; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal of intercomponent compound 1
  • laser intensity variation
  • 88
  • POMD
  • 2
  • 3
  • Mole fraction - 2 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal of intercomponent compound 1
  • laser intensity variation
  • 8
  • POMD
  • 1
  • 2
  • Mole fraction - 2 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal of intercomponent compound 1
  • laser intensity variation
  • 8