ABSTRACT

The solubilities of phenylphosphinic acid from (297.79 to 312.84) K, hydroxymethylphenylphosphinic acid from (307.45 to 357.11) K, p-methoxyphenylphosphinic acid from (303.35 to 337.35) K, and p-methoxyphenylhydroxymethylphosphinic acid from (303.95 to 346.45) K in water were measured. The concentration of the solution was determined by titration with sodium hydroxide using phenolphthalein as the indicator. The solubilities of triphenylphosphine from (299.65 to 327.15) K in methanol and from (297.45 to 327.65) K in ethanol, tri(pmethoxyphenyl) phosphine from (293.35 to 322.65) K in methanol and from (298.25 to 328.15) K in ethanol, and tri(p-methoxyphenyl)phosphine oxide from (299.15 to 337.65) K in cyclohexane were determined using a dynamic method. The estimated uncertainty of all the solubility values based on error analysis and repeated observations was within 2.3 %.

Compounds

#	Formula	Name
1	C6H7O2P	phenylphosphinic acid
2	C7H9O3P	(hydroxymethyl)(phenyl)phosphinic acid
3	C7H9O3P	(4-methoxyphenyl)phosphinic acid
4	C8H11O4P	(hydroxymethyl)(4-methoxyphenyl)phosphinic acid
5	C18H15P	triphenylphosphine
6	C21H21O3P	tris(4-methoxyphenyl)phosphane
7	C21H21O4P	tris(4-methoxyphenyl)phosphine oxide
8	H2O	water
9	C2H6O	ethanol
10	CH4O	methanol
11	C6H12	cyclohexane

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	2	Normal melting temperature, K ; Crystal			Crystal Liquid Air at 1 atmosphere	VISOBS	1
POMD	3	Normal melting temperature, K ; Crystal			Crystal Liquid Air at 1 atmosphere	VISOBS	1
POMD	4	Normal melting temperature, K ; Crystal			Crystal Liquid Air at 1 atmosphere	VISOBS	1
POMD	5	Normal melting temperature, K ; Crystal			Crystal Liquid Air at 1 atmosphere	VISOBS	1
POMD	6	Normal melting temperature, K ; Crystal			Crystal Liquid Air at 1 atmosphere	VISOBS	1
POMD	7	Normal melting temperature, K ; Crystal			Crystal Liquid Air at 1 atmosphere	VISOBS	1
POMD	1 8	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	Titration method	6
POMD	8 2	Mole fraction - 2 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 2	Titration method	8
POMD	8 3	Mole fraction - 3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 3	Titration method	8
POMD	8 4	Mole fraction - 4 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 4	Titration method	10
POMD	9 5	Mole fraction - 5 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 5	Titration method	7
POMD	10 5	Mole fraction - 5 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 5	Titration method	8
POMD	9 6	Mole fraction - 6 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 6	Titration method	7
POMD	10 6	Mole fraction - 6 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 6	Titration method	7
POMD	11 7	Mole fraction - 7 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 7	Titration method	9

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

Solubilities of Phenylphosphinic Acid, Hydroxymethylphenylphosphinic Acid, p-Methoxyphenylphosphinic Acid, p-Methoxyphenylhydroxymethylphosphinic Acid, Triphenylphosphine, Tri(p-methoxyphenyl)phosphine, and Tri(p-methoxyphenyl)phosphine Oxide in Selected Solvents

Wang, L. -S.[Li-Sheng], Yang, M.[Mei], Wang, S.-B.[Shu-Bo], Ouyang, X.[Xia]

ABSTRACT