Mixture of 2-Pyrrolidinone, 1-methyl- + Potassium carbonate + Water

Name: 2-Pyrrolidinone, 1-methyl-
InChI: InChI=1S/C5H9NO/c1-6-4-2-3-5(6)7/h2-4H2,1H3
InChI Key: SECXISVLQFMRJM-UHFFFAOYSA-N
Formula: C5H9NO
SMILES: CN1CCCC1=O
Mol. Weight (g/mol): 99.13
CAS: 872-50-4

Name: Potassium carbonate
InChI: InChI=1S/CH2O3.2K/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2
InChI Key: BWHMMNNQKKPAPP-UHFFFAOYSA-L
Formula: CK2O3
SMILES: O=C(O[K])O[K]
Mol. Weight (g/mol): 138.21

Name: Water
InChI: InChI=1S/H2O/h1H2
InChI Key: XLYOFNOQVPJJNP-UHFFFAOYSA-N
Formula: H2O
SMILES: O
Mol. Weight (g/mol): 18.02
CAS: 7732-18-5

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Datasets

Mass fraction (4)
n₀ - Refractive index (Na D-line) (2)

Mass fraction [ref]

Operational conditions:

Temperature, K = 298.15 (Liquid mixture 1)
Pressure, kPa = 101 (Liquid mixture 2)

Fixed	Measured
Mass fraction of Potassium carbonate (2) - Liquid mixture 2	Mass fraction of 2-Pyrrolidinone, 1-methyl- (1) - Liquid mixture 2	Mass fraction of Potassium carbonate (2) - Liquid mixture 1	Mass fraction of 2-Pyrrolidinone, 1-methyl- (1) - Liquid mixture 1
0.2404	0.0566	0.0456	0.3477
0.2705	0.0364	0.0298	0.3939
0.2953	0.0278	0.0211	0.4297
0.3186	0.0195	0.0159	0.4643
0.3369	0.0183	0.0115	0.4944
0.3542	0.0154	0.0085	0.5219

Mass fraction of Potassium carbonate (2) [ref]

Operational conditions:

Pressure, kPa = 101 (Liquid mixture 1)
Temperature, K = 298.15 (Liquid mixture 1)

Mass fraction of 2-Pyrrolidinone, 1-methyl- (1) - Liquid mixture 1	Mass fraction of Potassium carbonate (2) - Liquid mixture 1
0.0553	0.2389
0.0763	0.2153
0.0937	0.2000
0.1255	0.1737
0.1496	0.1565
0.1880	0.1313
0.1999	0.1242
0.2076	0.1188
0.2207	0.1105
0.2359	0.1005
0.2490	0.0933
0.2609	0.0865
0.2703	0.0808
0.2794	0.0758
0.2910	0.0694
0.3025	0.0639
0.3174	0.0562
0.3263	0.0512

Mass fraction [ref]

Operational conditions:

Temperature, K = 298.15 (Liquid mixture 1)
Pressure, kPa = 101 (Liquid mixture 2)

Fixed	Measured
Mass fraction of Potassium carbonate (2) - Liquid mixture 2	Mass fraction of 2-Pyrrolidinone, 1-methyl- (1) - Liquid mixture 2	Mass fraction of Potassium carbonate (2) - Liquid mixture 1	Mass fraction of 2-Pyrrolidinone, 1-methyl- (1) - Liquid mixture 1
0.2404	0.0566	0.0456	0.3477
0.2705	0.0364	0.0298	0.3939
0.2953	0.0278	0.0211	0.4297
0.3186	0.0195	0.0159	0.4643
0.3369	0.0183	0.0115	0.4944
0.3542	0.0154	0.0085	0.5219

Mass fraction of Potassium carbonate (2) [ref]

Operational conditions:

Pressure, kPa = 101 (Liquid mixture 1)
Temperature, K = 298.15 (Liquid mixture 1)

Mass fraction of 2-Pyrrolidinone, 1-methyl- (1) - Liquid mixture 1	Mass fraction of Potassium carbonate (2) - Liquid mixture 1
0.0553	0.2389
0.0763	0.2153
0.0937	0.2000
0.1255	0.1737
0.1496	0.1565
0.1880	0.1313
0.1999	0.1242
0.2076	0.1188
0.2207	0.1105
0.2359	0.1005
0.2490	0.0933
0.2609	0.0865
0.2703	0.0808
0.2794	0.0758
0.2910	0.0694
0.3025	0.0639
0.3174	0.0562
0.3263	0.0512

Refractive index (Na D-line) [ref]

Operational conditions:

Temperature, K = 298.15 (Liquid)
Pressure, kPa = 101 (Liquid)

Fixed		Measured
Mass fraction of 2-Pyrrolidinone, 1-methyl- (1) - Liquid	Mass fraction of Potassium carbonate (2) - Liquid	Refractive index (Na D-line) - Liquid
0.0000	0.0475	1.3401
0.0137	0.0441	1.3415
0.0236	0.0407	1.3424
0.0193	0.0381	1.3414
0.0256	0.0360	1.342
0.0418	0.0309	1.3435
0.0379	0.0278	1.3424
0.0432	0.0254	1.3428
0.0554	0.0214	1.3439
0.0555	0.0186	1.3434
0.0609	0.0156	1.3438
0.0681	0.0122	1.3442
0.0734	0.0091	1.3445
0.0795	0.0063	1.3449
0.0852	0.0054	1.3456
0.0902	0.0021	1.3458
0.0958	0.0000	1.3462

Refractive index (Na D-line) [ref]

Operational conditions:

Temperature, K = 298.15 (Liquid)
Pressure, kPa = 101 (Liquid)

Fixed		Measured
Mass fraction of 2-Pyrrolidinone, 1-methyl- (1) - Liquid	Mass fraction of Potassium carbonate (2) - Liquid	Refractive index (Na D-line) - Liquid
0.0000	0.0475	1.3401
0.0137	0.0441	1.3415
0.0236	0.0407	1.3424
0.0193	0.0381	1.3414
0.0256	0.0360	1.342
0.0418	0.0309	1.3435
0.0379	0.0278	1.3424
0.0432	0.0254	1.3428
0.0554	0.0214	1.3439
0.0555	0.0186	1.3434
0.0609	0.0156	1.3438
0.0681	0.0122	1.3442
0.0734	0.0091	1.3445
0.0795	0.0063	1.3449
0.0852	0.0054	1.3456
0.0902	0.0021	1.3458
0.0958	0.0000	1.3462

Sources

Salting-out effect of sodium, potassium, carbonate, sulfite, tartrate and thiosulfate ions on aqueous mixtures of acetonitrile or 1-methyl-2-pyrrolidone: A liquid-liquid equilibrium study