Hagati
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1,4-Phthalaldehyde
Ongeramo g 6,0 ya sodium sulfide, 2,7 g yifu ya sulfure, g 5 ya hydroxide ya sodium na ml 60 yamazi muri ml 250 250 flask yamajosi hamwe na kondenseri ya reflux hamwe nigikoresho gikurura, hanyuma uzamure ubushyuhe kuri 80℃munsi.Ifu ya sulfure yumuhondo irashonga, kandi igisubizo gihinduka umutuku.Nyuma yo kugaruka kuri 1 h, habonetse igisubizo cyumutuku sodium polysulfide.
