Mixture of Sodium metaborate + Water + Sodium tetraborate

Name: Sodium metaborate
InChI: InChI=1S/BO2.Na.H2O/c2-1-3;;/h;;1H2/q-1;+1;
InChI Key: UYAQHLFAIDLZLE-UHFFFAOYSA-N
Formula: BH2NaO3
SMILES: O.O=B[O-].[Na+]
Mol. Weight (g/mol): 83.81

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

Name: Sodium tetraborate
InChI: InChI=1S/B4O7.2Na.H2O/c5-1-7-3-9-2(6)10-4(8-1)11-3;;;/h;;;1H2/q-2;2*+1;
InChI Key: ZTYXXAIIPIWNRD-UHFFFAOYSA-N
Formula: B4H2Na2O8
SMILES: O.[Na+].[Na+].[O-]B1OB2OB([O-])OB(O1)O2
Mol. Weight (g/mol): 219.24

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Datasets

Mass fraction (4)
n₀ - Refractive index (Na D-line) (2)
ρ_l - Mass density, kg/m3 (2)

Mass fraction of Sodium tetraborate (3) [ref]

Operational conditions:

Temperature, K = 298.15 (Liquid)
Pressure, kPa = 100 (Liquid)

Mass fraction of Sodium metaborate (1) - Liquid	Mass fraction of Sodium tetraborate (3) - Liquid
0.2259	0.0000
0.2071	0.0059
0.1981	0.0165

Mass fraction of Sodium tetraborate (3) [ref]

Operational conditions:

Temperature, K = 298.15 (Liquid)
Pressure, kPa = 100 (Liquid)

Mass fraction of Sodium metaborate (1) - Liquid	Mass fraction of Sodium tetraborate (3) - Liquid
0.1981	0.0165
0.1523	0.0155
0.1023	0.0117
0.0507	0.0096
0.0209	0.0110
0.0077	0.0213
0.0000	0.0308

Mass fraction of Sodium tetraborate (3) [ref]

Operational conditions:

Temperature, K = 298.15 (Liquid)
Pressure, kPa = 100 (Liquid)

Mass fraction of Sodium metaborate (1) - Liquid	Mass fraction of Sodium tetraborate (3) - Liquid
0.2259	0.0000
0.2071	0.0059
0.1981	0.0165

Mass fraction of Sodium tetraborate (3) [ref]

Operational conditions:

Temperature, K = 298.15 (Liquid)
Pressure, kPa = 100 (Liquid)

Mass fraction of Sodium metaborate (1) - Liquid	Mass fraction of Sodium tetraborate (3) - Liquid
0.1981	0.0165
0.1523	0.0155
0.1023	0.0117
0.0507	0.0096
0.0209	0.0110
0.0077	0.0213
0.0000	0.0308

Refractive index (Na D-line) [ref]

Operational conditions:

Temperature, K = 298.15 (Liquid)
Pressure, kPa = 100 (Liquid)

Fixed		Measured
Mass fraction of Sodium metaborate (1) - Liquid	Mass fraction of Sodium tetraborate (3) - Liquid	Refractive index (Na D-line) - Liquid
0.2259	0.0000	1.3872
0.2071	0.0059	1.3878
0.1981	0.0165	1.3883
0.1523	0.0155	1.3762
0.1023	0.0117	1.3623
0.0507	0.0096	1.3481
0.0209	0.0110	1.3404
0.0077	0.0213	1.3384
0.0000	0.0308	1.339

Refractive index (Na D-line) [ref]

Operational conditions:

Temperature, K = 298.15 (Liquid)
Pressure, kPa = 100 (Liquid)

Fixed		Measured
Mass fraction of Sodium metaborate (1) - Liquid	Mass fraction of Sodium tetraborate (3) - Liquid	Refractive index (Na D-line) - Liquid
0.2259	0.0000	1.3872
0.2071	0.0059	1.3878
0.1981	0.0165	1.3883
0.1523	0.0155	1.3762
0.1023	0.0117	1.3623
0.0507	0.0096	1.3481
0.0209	0.0110	1.3404
0.0077	0.0213	1.3384
0.0000	0.0308	1.339

Mass density, kg/m3 [ref]

Operational conditions:

Temperature, K = 298.15 (Liquid)
Pressure, kPa = 100 (Liquid)

Fixed		Measured
Mass fraction of Sodium metaborate (1) - Liquid	Mass fraction of Sodium tetraborate (3) - Liquid	Mass density, kg/m3 - Liquid
0.2259	0.0000	1267.8
0.2071	0.0059	1267.86
0.1981	0.0165	1267.94
0.1523	0.0155	1211.78
0.1023	0.0117	1139.12
0.0507	0.0096	1070.42
0.0209	0.0110	1034.04
0.0077	0.0213	1026.65
0.0000	0.0308	1025.65

Mass density, kg/m3 [ref]

Operational conditions:

Temperature, K = 298.15 (Liquid)
Pressure, kPa = 100 (Liquid)

Fixed		Measured
Mass fraction of Sodium metaborate (1) - Liquid	Mass fraction of Sodium tetraborate (3) - Liquid	Mass density, kg/m3 - Liquid
0.2259	0.0000	1267.8
0.2071	0.0059	1267.86
0.1981	0.0165	1267.94
0.1523	0.0155	1211.78
0.1023	0.0117	1139.12
0.0507	0.0096	1070.42
0.0209	0.0110	1034.04
0.0077	0.0213	1026.65
0.0000	0.0308	1025.65

Sources

Experimental Data and Thermodynamic Model in the Salt-Water Ternary System (NaBO2 + Na2B4O7 + H2O) at T = 298.15 K and p = 0.1 MPa