Compilation - 1-Methylnaphthalene with Water (IUPAC SDS Volume 38)
SDS Volume (815)
Volume 38. Hydrocarbons in Water and Seawater, Part II, p None
Original Measurements
Schwarz, F. P.; J. Chem. Eng. Data. 1977, 22, 273-7.
Variables:
Room Temp: 8.6 - 31.7 °C
Prepared by:
Method/Apparatus/Procedure:
Two methods were used:
At 25 °C the solubility of (1) in (2) was determined from UV absorption measurements and was used as a standard at other temperatures. At other temperatures the spectrofluorimetry method was used.
The sealed fluorescence sells contained 5 mL of the aqueous solution and an excess of (1) were rotated at least 72 h in a water bath, then removed, quickly wiped dry and placed in the fluorimeter.
Source and Purity of Materials:
- source not specified; better than 99.9 mole%, by glc; used as received.
- Distilled over $\ce{KMnO4}$ and $\ce{NaOH}$ and passed through a Sephadex column.
Estimated Errors:
Ambient temperature: ±0.1°C
Mass concentration (m/v) (1): see above.
Components:
- 1-Methylnaphthalene, $\ce{ C11H10 }$; [90-12-0] NIST WebBook
- Water, $\ce{ H2O }$; [7732-18-5] NIST WebBook
Experimental Data
Solubility of 1-methylnaphthalene in water
| $T$ (°C) | $C_{1}$ (mol/dm3) | $x_{1}$ | MR1 (g1/100 g sln) |
|---|---|---|---|
| 8.6 | 1.40 x 10-4 | 2.52 x 10-6 | 1.99 x 10-3 |
| 14.0 | 1.59 x 10-4 | 2.86 x 10-6 | 2.26 x 10-3 |
| 17.1 | 1.61 x 10-4 | 2.90 x 10-6 | 2.29 x 10-3 |
| 20.0 | 1.78 x 10-4 | 3.21 x 10-6 | 2.53 x 10-3 |
| 23.0 | 1.94 x 10-4 | 3.49 x 10-6 | 2.76 x 10-3 |
| 25.0 | 2.11 x 10-4 | 3.80 x 10-6 | 3.00 x 10-3 |
| 26.1 | 2.14 x 10-4 | 3.85 x 10-6 | 3.04 x 10-3 |
| 29.2 | 2.34 x 10-4 | 4.21 x 10-6 | 3.33 x 10-3 |
| 31.7 | 2.55 x 10-4 | 4.59 x 10-6 | 3.27 x 10-3 |
(a) These values were calculated by the compiler.
