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Deng karaniwan a isyu malyari lang aluswan anti kanini. Para keng pamag-clump, maranun meng i-tap ing reagent bottle gamit ing gawa keng dutung a mallet—e ka gumamit metal a martilyu. Ing kule a madalumdum mangabaldugan yang partial oxidation, na malyaring gamutan kapamilatan ning pamag-reflux king ustung dagul ning sulfur powder. Deng Cloudy solutions dapat lang i-filter bayu ing concentration calibration, gamit ing double-layer slow quantitative filter paper. nung ing label ning bote ning Sodium Sulfide reagent mewala ya, agad meng isulat pasibayu gamit ing waterproof marker, at isulat me ing petsa ning pamagbuklat. Sodium Sulfide.