SDS Volume
Volume 73. Metal and Ammonium Formate Systems, p None
Source Publication
Centola, P. G.; Rosso, R. E.; Mazzoccia, C. V.; J. Chem. Eng. Data 25, 170-1 (1980).
Conditions:
Room Temp: Composition at 60 °C
Compilers:
St. Trendafilova, Chr. Balarew
Methodology:
Weighed amounts of $\ce{NaOH}$ and formic acid were dissolved in deionized water and placed in closed 250 mL flasks. The flasks were placed in a constant temperature bath. Equilibrium was reached in 6 h. Samples were removed after 24 h and analyzed. The sodium formate content was determined by adding excess $\ce{KMnO4}$ and titrating the excess iodometrically. $\ce{NaOH}$ was determined by titration with formic acid.
Sample Information:
- Carlo Erba pure reagents were used.
Measurement Errors:
Ambient temperature: Accuracy of temperature measurement was ±0.05°C.
System Components:
- Sodium formate, $\ce{ NaCHO2 }$; [141-53-7] NIST WebBook
- Sodium hydroxide, $\ce{ NaOH }$; [1310-73-2] NIST WebBook
- Water, $\ce{ H2O }$; [7732-18-5] NIST WebBook
Experimental Data
| 100w2 | 100w1 | m2 (mol/kg) a | m1 (mol/kg) a |
|---|---|---|---|
| 0.0 | 54.7 | 0.0 | 17.8 |
| 3.3 | 50.0 | 1.8 | 15.7 |
| 7.3 | 44.2 | 3.8 | 13.4 |
| 11.8 | 37.2 | 5.78 | 10.7 |
| 16.2 | 30.9 | 7.66 | 8.59 |
| 21.4 | 25.1 | 10.0 | 6.90 |
| 32.8 | 11.1 | 14.6 | 2.91 |
| 40.6 | 5.1 | 18.7 | 1.4 |
| 63.6 | 0.0 | 27.2 | 0.0 |
(a) These values were calculated by the compilers.


