Agbedemeji
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1,4-Phthalaldehyde
Fi 6.0 g ti iṣuu soda sulfide, 2.7 g ti sulfur lulú, 5 g ti sodium hydroxide ati 60 milimita ti omi sinu 250 milimita mẹta filasi ọrun ọrun pẹlu condenser reflux ati ẹrọ mimu, ki o si gbe iwọn otutu soke si 80℃labẹ saropo.Efin imi-ọjọ Yellow tu, ojutu naa si di pupa.Lẹhin isọdọtun fun wakati 1, ojutu iṣuu soda polysulfide pupa dudu ti gba.
