Research Article
Solid-Liquid Phase Equilibria of the Quaternary System NaCl + NH4Cl + NaHCO3 + NH4HCO3 + H2O at 283.15 and 313.15 K
Table 1
Reagents used in this work.
| | Chemical name | CAS reg. no | Grade | Initial mass fraction purity | Purification method | Final mass fraction purity | Analysis method |
| | NaCl | 7647-14-5 | A.R | 0.99 | Recrystallization | 0.992 | Titration for Cl− | | NH4Cl | 12125-02-9 | A.R | 0.99 | Recrystallization | 0.992 | Titration for and NH4+ | | NaHCO3 | 144-55-8 | A.R | 0.99 | Recrystallization | 0.992 | Titration for HCO3− | | NH4HCO3 | 1066-33-7 | A.R | 0.99 | Recrystallization | 0.992 | Titration for HCO3− and NH4+ |
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