“Tthatnak cu a sangbik a si, Riantuannak cu a sang bik a si, Mipi nih an uarmi cu a hmasa bik a si” timi uknak phunglam kha kan zulh i Factory Price 60% Min Na2s Yellow Flakes Sodium Sulphide Flake Red caah hlawhtlinnak kha kan riantuanpi hawi vialte he lungtak tein kan ser lai i kan hrawmh hna lai, Kan company karhter le a ttha bikmi thilri pawl kha a ttha ngaimi man he kan pek khawh hna nakhnga kan i zuam peng lai. Biahalnak le ruahnak cheuhnak paoh cu kan i lawm tuk. Zalong tein kan i tlaih khawh nakhnga philh hlah.
“Tthatnak cu a sangbik a si, Riantuannak cu a sang bik a si, Mipi nih an uarmi cu a hmasa bik a si” timi uknak phunglam kha kan zulh i, “riantuannak sang, fawinak, hman khawhnak le thilthar sernak” timi riantuannak lungput he, “a ttha nain a man a ttha deuh” timi lamhruainak he aa tlak in, “credit” he riantuan tti kan i zuam. vawleicung pumpi i mawtaw thilri company hna nih teinak hmuh khawhnak ding caah.













Sodium Sulfide hngalh khawhnak
Sodium Sulfide Reagents
Glacial acetic acid cawhmi: 1+10
Iodine standard titration cawhnuk: 0.1 mol/L hrawng
Sodium thiosulfate standard titration solution: 0.1 mol/L hrawng
Starch hmelchunhnak a phichuak
95% ethanol
Sodium carbonate cawhmi: 10%
Zinc sulfate cawhmi: 10%