Matsakaici
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1,4-Phthalaldehyde
Ƙara 6.0 g na sodium sulfide, 2.7 g na sulfur foda, 5 g na sodium hydroxide da 60 ml na ruwa a cikin wani 250 ml wuyansa flask uku tare da reflux condenser da stirring na'urar, da kuma tada zazzabi zuwa 80.℃karkashin motsawa.Ruwan sulfur na rawaya yana narkewa, kuma maganin ya zama ja.Bayan refluxing na 1 h, duhu ja sodium polysulfide bayani an samu.
