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Matambudziko akajairika anogona kugadziriswa seizvi. Pakubatanidza, bata bhodhoro re reagent zvinyoro nyoro nehando yehuni—usamboshandisa nyundo yesimbi. Ruvara rwakasviba runoratidza oxidation yechikamu, iyo inogona kurapwa nekudzoreredza huwandu hwakakodzera hweupfu hwesarufa. Mhinduro dzine makore dzinofanira kusefa usati wagadzirisa huwandu, uchishandisa bepa rekusefa rinononoka kaviri. Kana label yebhodhoro re reagent reSodium Sulfide ikadonha, nyora patsva ipapo uchishandisa chiratidzo chisingapindi mvura, uchinyora zuva rekutanga. Sodium Sulfide.