Research Article
Multiphysical Models for Hydrogen Production Using NaOH and Stainless Steel Electrodes in Alkaline Electrolysis Cell
Table 4
Characteristics of the samples at 25°C.
| Liquids | Characteristics before addition of NaOH | pH | Resistivity (Ωm) | Conductivity (S/m) | Salinity (g/kg) |
| AC water | 7.65 | 73.153 | 0.0137 | 0.068 | >14 | 0.005376 | 186.01 | 14581.5 |
| Water from pressing | 10.67 | 1.7801 | 0.5618 | 3.033 | >14 | 0.005144 | 194.4 | 16276.8 |
| Water from factory | 11.21 | 5.0222 | 0.1991 | 1.015 | >14 | 0.005297 | 188.7 | 15133.6 |
| Tap water | — | — | — | — | >14 | 0.00641 | 156 | 9448.6 |
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Values in bold italics are the characteristics after addition of 40 wt% NaOH.
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