ABSTRACT

Thermal properties of alkali bis(fluorosulfonyl)amides, Mf2N (M = Li, Na, K, Rb, Cs), have been examined as well as their binary mixtures. The eutectic compositions were determined by Tammann s rule, and the phase diagrams have been constructed for all of the binary systems. It has been revealed that the binary mixtures have melting points in the temperature range of (325 to 360) K which are much lower than that found for the corresponding perfluoroalkylsulfonylamide salts such as alkali bis(trifluoromethylsulfonyl)amides, MTf2N, and alkali bis(pentafluoroethylsulfonyl)amides, MPf2N. The thermal properties of the single salts and binary mixtures are discussed for Mf2N, MTf2N, and MPf2N.

Compounds

#	Formula	Name
1	F2LiNO4S2	lithium bis(fluorosulfonyl)imide
2	F2NNaO4S2	sodium bis(fluorosulfonyl)amide
3	F2KNO4S2	potassium bis(fluorosulfonyl)amide
4	F2NO4RbS2	rubidium bis(fluorosulfonyl)amide
5	CsF2NO4S2	cesium bis(fluorosulfonyl)amide

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	Normal melting temperature, K ; Crystal			Crystal Liquid Air at 1 atmosphere	DTA	1
POMD	2	Normal melting temperature, K ; Crystal			Crystal Liquid Air at 1 atmosphere	DTA	1
POMD	3	Normal melting temperature, K ; Crystal			Crystal Liquid Air at 1 atmosphere	DTA	1
POMD	4	Normal melting temperature, K ; Crystal			Crystal Liquid Air at 1 atmosphere	DTA	1
POMD	5	Normal melting temperature, K ; Crystal			Crystal Liquid Air at 1 atmosphere	DTA	1
POMD	2 1	Eutectic temperature, K ; Liquid			Liquid Crystal - 1 Crystal - 2 Air at 1 atmosphere	DTA:	1
POMD	2 1	Eutectic composition: mole fraction - 2 ; Liquid			Liquid Crystal - 1 Crystal - 2 Air at 1 atmosphere	Derived from phase diagram analysis	1
POMD	2 1	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	DTA	6
POMD	2 1	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 2	DTA	5
POMD	3 1	Eutectic temperature, K ; Liquid			Liquid Crystal - 1 Crystal - 3 Air at 1 atmosphere	DTA:	1
POMD	3 1	Eutectic composition: mole fraction - 3 ; Liquid			Liquid Crystal - 1 Crystal - 3 Air at 1 atmosphere	Derived from phase diagram analysis	1
POMD	3 1	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 3; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	DTA	6
POMD	3 1	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 3; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 3	DTA	5
POMD	4 1	Eutectic temperature, K ; Liquid			Liquid Crystal - 1 Crystal - 4 Air at 1 atmosphere	DTA:	1
POMD	4 1	Eutectic composition: mole fraction - 4 ; Liquid			Liquid Crystal - 1 Crystal - 4 Air at 1 atmosphere	Derived from phase diagram analysis	1
POMD	4 1	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	DTA	7
POMD	4 1	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 4	DTA	4
POMD	5 1	Eutectic temperature, K ; Liquid			Liquid Crystal - 1 Crystal - 5 Air at 1 atmosphere	DTA:	1
POMD	5 1	Eutectic composition: mole fraction - 5 ; Liquid			Liquid Crystal - 1 Crystal - 5 Air at 1 atmosphere	Derived from phase diagram analysis	1
POMD	5 1	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	DTA	6
POMD	5 1	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 5	DTA	5
POMD	3 2	Eutectic temperature, K ; Liquid			Liquid Crystal - 2 Crystal - 3 Air at 1 atmosphere	DTA	1
POMD	3 2	Eutectic composition: mole fraction - 3 ; Liquid			Liquid Crystal - 2 Crystal - 3 Air at 1 atmosphere	Derived from phase diagram analysis	1
POMD	3 2	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 3; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 2	DTA	5
POMD	3 2	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 3; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 3	DTA	6
POMD	4 2	Eutectic temperature, K ; Liquid			Liquid Crystal - 2 Crystal - 4 Air at 1 atmosphere	DTA	1
POMD	4 2	Eutectic composition: mole fraction - 4 ; Liquid			Liquid Crystal - 2 Crystal - 4 Air at 1 atmosphere	Derived from phase diagram analysis	1
POMD	4 2	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 2	DTA	5
POMD	4 2	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 4	DTA	6
POMD	5 2	Eutectic temperature, K ; Liquid			Liquid Crystal - 2 Crystal - 5 Air at 1 atmosphere	DTA	1
POMD	5 2	Eutectic composition: mole fraction - 5 ; Liquid			Liquid Crystal - 2 Crystal - 5 Air at 1 atmosphere	Derived from phase diagram analysis	1
POMD	5 2	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 2	DTA	6
POMD	5 2	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 5	DTA	5
POMD	3 4	Eutectic temperature, K ; Liquid			Liquid Crystal - 3 Crystal - 4 Air at 1 atmosphere	DTA	1
POMD	3 4	Eutectic composition: mole fraction - 4 ; Liquid			Liquid Crystal - 3 Crystal - 4 Air at 1 atmosphere	Derived from phase diagram analysis	1
POMD	3 4	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 3	DTA	7
POMD	3 4	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 4	DTA	4
POMD	3 5	Eutectic temperature, K ; Liquid			Liquid Crystal - 3 Crystal - 5 Air at 1 atmosphere	DTA	1
POMD	3 5	Eutectic composition: mole fraction - 5 ; Liquid			Liquid Crystal - 3 Crystal - 5 Air at 1 atmosphere	Derived from phase diagram analysis	1
POMD	3 5	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 3	DTA	5
POMD	3 5	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 5	DTA	6
POMD	4 5	Eutectic temperature, K ; Liquid			Liquid Crystal - 4 Crystal - 5 Air at 1 atmosphere	DTA	1
POMD	4 5	Eutectic composition: mole fraction - 5 ; Liquid			Liquid Crystal - 4 Crystal - 5 Air at 1 atmosphere	Derived from phase diagram analysis	1
POMD	4 5	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 4	DTA	4
POMD	4 5	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 5	DTA	7

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

Thermal Properties of Alkali Bis(fluorosulfonyl)amides and Their Binary Mixtures

Kubota, K.[Keigo], Nohira, T.[Toshiyuki], Hagiwara, R.[Rika]

ABSTRACT