Ngec manyen, ber man gen ubedo piny ma pire tek i kuloka mwa. Cik eni tin eni ubedo the cen pa lonyo mwa calu kampuni ma dit ma timo tic i ng'om zoo pi wel ma dit mi Factory 60% Min Na2s Yellow Flakes Sodium Sulphide Flake Red, Walwongo in ku kampuni peri ni dongo karacelu kudwa man ni poko anyim maber i ng'om zoo.
Ngec manyen, ber man gen ubedo piny ma pire tek i kuloka mwa. Cik eni tin eni ubedo the cen pa lonyo mwa calu kampuni ma dit ma timo tic i ng'om zoo, piny mwa zo jucwalo ni juwil mwa i UK, Germany, France, Spain, USA, Canada, Iran, Iraq, the Middle East man Africa. Piny mwa jujolo maber ku juruwil mwa pi ber pa piny mwa, bei maber man kit maber pa piny mwa. Wageno ni wabiketho winjiri mi kuloka ku juruwil zo man wabikelo rangi ma leng pi kwo.













Sodium Sulfide Treatment man Titration:
Pipette 200 mL pa Solution B i 500 mL volumetric flask. Medu 40 mL pa sodium carbonate solution, 80 mL pa zinc sulfate solution, man 25 mL pa ethanol. Med pii ku pii man rub maber.
Yeny jamb tedu, jwigo 10 mL mir acel pa jamb tedu, man i pipet 100 mL pa jamb tedu i 500 mL conical flask.Sodium Sulfide.