Team:ETH Zurich/xylene
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How we calculated the concentration of m-xylene in the medium...
1. We assumed that 5 ml xylene is enough to saturate the gas phase in the Erlenmeyer flask.
- The vapor pressure was calculated at 37 °C:
- with the following C1-C5 values:
2. The Henry´s constant at 37 °C can be calculated by the Van´t Hoff equation from the literature value at 25°C
3. By Henry´s law we calculated the concentration of xylene in the medium
4. For the oil/xylene mixtures we assumed that paraffin oil has a vapor pressure of 0 and used Raoult's law
xylene in oil in % | concentration of xylene in LB [mM] |
100 | 3.1 |
50 | 1.55 |
25 | 0.775 |
15 | 0.465 |
10 | 0.31 |
7.5 | 0.233 |
5 | 0.155 |
2.5 | 0.078 |
1 | 0.031 |
0.75 | 0.023 |
0.5 | 0.016 |
0 | 0 |
References
[1] Perry’s Chemical Engineers Handbook 8th Edition
[2] CRC Handbook of Chemistry and Physics, 92nd Edition, p.5-189