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Composition and Physicochemical Properties of 0.7% HCl, SGFsp, Blank FaSSGF, and Blank FeSSGF
| 0.7% HCl | SGFsp | Blank FaSSGF | Blank FeSSGF | |
|---|---|---|---|---|
| Composition | ||||
| HCl, 37% w/v (mM) | 83.7 | 83.7 | 35.9 | – |
| CH3COOH (mM) | – | – | – | 17.1 |
| CH3COONa·3H2O (mM) | – | – | – | 29.8 |
| NaCl (mM) | – | 34.2 | 34.2 | 237.0 |
| Double-distilled water (L) | 1.0 | 1.0 | 1.0 | 1.0 |
| Physicochemical properties | ||||
| pH | 1.5 ± 0.1 | 1.2 ± 0.1 | 1.6 ± 0.1 | 5.0 ± 0.1 |
| Ionic strength (mol/L) | 0.084 | 0.118 | 0.070 | 0.273 |
| Buffer capacity (M/∆pH) | – | – | – | 0.025 |
