1.1
Reagents:
Sodium bicarbonate
Solvents:
Ethanol
;
rt → 80 °C; 6 h, 80 °C; 80 °C → 60 °C
1.2
Reagents:
Hydrochloric acid
Solvents:
Water
;
pH 2 - 3, 60 - 70 °C
1.3
Reagents:
Sodium hydroxide
Solvents:
Water
;
pH 10 - 11, 60 - 70 °C