1.1
Reagents:
Polyoxyethylene sorbitan monostearate
Solvents:
1,2-Dichlorobenzene
;
rt → 60 °C
1.2
Reagents:
Sulfuric acid
Solvents:
Water
;
10 min, < 80 °C; 80 °C → 180 °C; 6 h, 180 °C; 180 °C → 100 °C
1.3
Reagents:
Sodium carbonate
Solvents:
Water
;
pH 8 - 9