NIST-IUPAC Solubility Data Series

Magnesium formate with Formic acid and Water (IUPAC SDS Volume 73)

SDS Volume

Volume 73. Metal and Ammonium Formate Systems, p None

Source Publication

Dunn, L. J.; Philip, J. C.; J. Chem. Soc. 658 (1934).

Conditions:

Room Temp: Composition at 25 °C

Compiler:

T.A. Ageyeva

Methodology:

The isothermal method was used. The methods of analysis are not described. The composition of the solid phases was determined by the Schreinemakers method.

Sample Information:

The salt was prepared from pure formic acid and magnesium carbonate or hydroxide; purity is not specified. Commercial formic acid was used.

Measurement Errors:

Ambient temperature: The temperature was controlled to within ±0.01°C. Nothing is said about the solubility values.

System Components:

Magnesium formate, $\ce{ Mg(CHO2)2 }$; [557-39-1] NIST WebBook
Formic acid, $\ce{ CH2O2 }$; [64-18-6] NIST WebBook
Water, $\ce{ H2O }$; [7732-18-5] NIST WebBook

Experimental Data

100w₂	100w₁	100w₃	$100 x_{2}$	$100 x_{1}$	$100 x_{3}$	Phase (s) ()
0.0	12.23	87.77^a	0.0^a	2.15^a	97.85^a	Mg(CHO₂)₂·2H₂O
15.73	10.10	74.17^a	7.52^a	1.94^a	90.54^a	Mg(CHO₂)₂·2H₂O
31.28	8.01	60.71^a	16.50^a	1.70^a	81.80^a	Mg(CHO₂)₂·2H₂O
46.70	6.22	47.08^a	27.56^a	1.48^a	70.96^a	Mg(CHO₂)₂·2H₂O
69.90	4.68	25.42^a	51.13^a	1.38^a	47.49^a	Mg(CHO₂)₂·2H₂O
76.20	3.19	20.61^a	58.56^a	0.99^a	40.45^a	Mg(CHO₂)₂·2H₂O
90.80	2.15	7.05^a	82.79^a	0.79^a	16.42^a	Mg(CHO₂)₂·2H₂O

(a) These values were calculated by the compiler.

IUPAC-NIST Solubility Data Series, SRD 106