ABSTRACT

A phosphorus flame retardant named N,N'-piperazinebis(neopentylglycol)phosphoramidate (PBNGP) was synthesized and characterized by elemental analysis, Fourier transform infrared spectroscopy, mass spectra, and nuclear magnetic resonance. Its thermal properties were evaluated via thermogravimetric analysis and differential scanning calorimetry. The solubilities of PBNGP in selected solvents at T = (293.15 to 333.15) K and atmospheric pressure were measured via a static-analytic method. The experimental data were correlated with Scatchard Hildebrand, Buchowski-Ksiazczak, Wilson, nonrandom two liquid, and universal quasichemical equations. The calculated results showed that all of these models can reproduce the experimental data well, and the Wilson model gives the best correlation, with an overall relative standard deviation of 0.70%. The solubility parameter of PBNGP was calculated using the Scatchard Hildebrand methodology.

Compounds

#	Formula	Name
1	C14H28N2O6P2	2,2'-(piperazine-1,4-diyl)bis(5,5-dimethyl-1,3,2-dioxaphosphinane 2-oxide)
2	CHCl3	trichloromethane
3	C3H6O	acetone
4	C4H8O	tetrahydrofuran
5	C3H6O2	ethyl methanoate
6	C2H4Cl2	1,2-dichloroethane
7	C7H8	toluene
8	C3H8O	propan-1-ol
9	CH4O	methanol
10	C3H8O	propan-2-ol
11	C2H3N	acetonitrile
12	C6H6	benzene
13	C3H6O2	methyl ethanoate
14	C8H9NO2	N-acetyl-p-aminophenol
15	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	2 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	Gravimetric	7
POMD	3 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	Gravimetric	7
POMD	4 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	Gravimetric	9
POMD	5 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	Gravimetric	7
POMD	6 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	Gravimetric	9
POMD	7 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	Gravimetric	9
POMD	8 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	Gravimetric	9
POMD	9 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	Gravimetric	7
POMD	10 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	Gravimetric	9
POMD	11 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	Gravimetric	7
POMD	12 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	Gravimetric	9
POMD	13 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	Gravimetric	7
POMD	14 15	Mole fraction - 14 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 14	Gravimetric	9

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

Solid Liquid Phase Equilibrium of N,N'-Piperazinebis(neopentylglycol)phosphoramidate in Selected Solvents from T = (293.15 to 333.15) K

Zhao, D.-F.[Dong-Fang], Wang, L.-S.[Li-Sheng], Sun, J.[Jian], Chen, C.-M.[Chuan-Ming]

ABSTRACT