Wothandizira Kuchepetsa: Sodium Hydrosulfite
Dzina la Mankhwala: Sodium dithionite.
Poyerekeza ndi zinthu zopangitsa kuti zinthu ziwonongeke, sodium hydrosulfite imayambitsa kuwonongeka kochepa kwa nsalu. Ingagwiritsidwe ntchito pa nsalu zopangidwa ndi ulusi wosiyanasiyana popanda kuvulaza, chifukwa chake imatchedwa "hydrosulfite" (kutanthauza chitetezo chake). Ndi chinthu choyera cha mchenga kapena ufa wachikasu wopepuka. Imawola pa 300°C (imayaka pa 250°C), siisungunuka mu ethanol, imasungunuka mu sodium hydroxide solution, ndipo imachita zinthu mwamphamvu ndi madzi, zomwe zimapangitsa kuti ipse.
Kuwongolera kwathu kwa sodium sulfite kumakhala kokhwima kwambiri, ndipo gulu lililonse limayesedwa lokha ku fakitale. Dinani apa kuti mupeze mitengo yapamwamba kwambiri.