Business concept tha tak, rinawm taka hralhna leh service tha ber leh rang tak nena quality sang tak production pek kan tum tlat a ni. it will bring you not only the high quality product and huge profit, but the most significant is to occupy the endless market for Premium Sodium sulfide Chemical for Water Treatment Solutions, Ram pawn leh ram chhunga sumdawnna enterprise associate pahnih te hi thinlung takin kan lo hmuak a, hun rei tak chhung chu nangmah nen kan thawk dun theih kan beisei!
Business concept tha tak, rinawm taka hralhna leh service tha ber leh rang tak nena quality sang tak production pek kan tum tlat a ni. it will bring you not only the high quality product and huge profit, but the most significant is to occupy the endless market for sang zawk, chak zawk, chak zawk kan thiante nen kan discipline kalpui zelna hmangin.













Sodium sulfide Standardization hman dan: 1.1.
Iodine stock solution 25.00 mL chu pipette-in 0.10 mol/L sodium thiosulfate solution hmangin titrate rawh. Solution chu reddish-brown atanga pale yellow ah a inthlak chuan starch solution 5 mL dah la, blue color a bo mai thlengin titration chhunzawm rawh.Sodium sulfide.