Name: ThermoML Representation of Published Experimental Data from Journal of Chemical and Engineering Data (0021-9568, American Chemical Society)
Creator: Thermodynamics Research Center
License: https://www.nist.gov/open/license

ABSTRACT

Phase equilibria data for the KHSO4 H2SO4 H2O ternary system and the KHSO4 CrO3 H2SO4 H2O quaternary system at 313.15 K were measured, and the phase diagrams were constructed. Furthermore, analyses and discussions were made on the crystallization zones in the phase diagrams. All results can offer fundamental basis for preparation and purification of chromium trioxide by reacting potassium dichromate with sulfuric acid.

Compounds

#	Formula	Name
1	HKO4S	hydrogen potassium sulfate
2	H2O4S	sulfuric 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	Mass density, kg/m3 ; Liquid	Mass fraction - 2; Liquid Mass fraction - 1; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Pycnometric method	18
POMD	1 2 3	Mass fraction - 1 ; Liquid	Mass fraction - 2; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid Crystal - 1	spectrometry and titration	15
POMD	1 2 3	Mass fraction - 1 ; Liquid	Mass fraction - 2; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid Crystal of intercomponent compound 1	spectrometry and titration	3
POMD	1 3	Mass density, kg/m3 ; Liquid	Mass fraction - 1; Liquid Pressure, kPa; Liquid Temperature, K; Liquid		Liquid	Pycnometric method	1
POMD	1 3	Mass fraction - 1 ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid		Liquid Crystal - 1	spectrometry and titration	1
POMD	1 2	Mass density, kg/m3 ; Liquid	Mass fraction - 2; Liquid Pressure, kPa; Liquid Temperature, K; Liquid		Liquid	Pycnometric method	1
POMD	1 2	Mass fraction - 1 ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid		Liquid Crystal of intercomponent compound 1	spectrometry and titration	1

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

Phase Equilibria for the KHSO4 H2SO4 H2O and KHSO4 CrO3 H2SO4 H2O Systems at 313.15 K

Cui, W.[Wenwen], Li, P.[Ping], Zheng, S.[Shili], Zhang, H.[Hailin], Liu, C.[Chuang], Chen, Y.[Yongan], Zhang, Y.[Yi]

ABSTRACT