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表1 (NH4)2Fe(SO4)2·6H2O及其组分的溶解度

温度/℃ 溶解度(g/100 g H2O) FeSO4·7H2O (NH4)2SO4 (NH4)2Fe(SO4)2·6H2O 10 20.5 73.0 18.1 20 26.6 75.4 21.2 30 33.2 78.0 24.5 50 48.6 84.5 31.3 70 56.0 91.9 38.5