Timanyadira kuti makasitomala athu akukhutira kwambiri komanso kuti anthu ambiri akuvomereza zimenezi chifukwa chofunafuna zinthu zabwino komanso ntchito yabwino kwambiri pa 60% Na2s Fe.<30ppm sodium sulphidesulfide cas 1313 82 2, our merchandise have exported to north america, europe, japan, korea, australia, new zealand, russia and other countries. on the lookout ahead create up a fantastic long lasting cooperation along with you in coming foreseeable future!
Tikunyadira kukhutitsidwa kwakukulu ndi kulandiridwa kwa makasitomala athu chifukwa cha kufunafuna kwathu zinthu zabwino kwambiri pa malonda ndi ntchito zathu, Onetsetsani kuti mukumva kuti mulibe ndalama zambiri kuti mutitumizire zomwe mukufuna ndipo tidzakuyankhani mwachangu. Tili ndi gulu la akatswiri opanga zinthu kuti litithandize pa zosowa zanu zonse. Zitsanzo zaulere zitha kutumizidwa kuti zigwirizane ndi zosowa zanu kuti mudziwe zambiri. Kuti mukwaniritse zomwe mukufuna, onetsetsani kuti muli ndi ufulu wolankhula nafe. Mutha kutitumizira maimelo ndi kutiyimbira foni mwachindunji. Kuphatikiza apo, timalandira alendo ochokera padziko lonse lapansi kuti tidziwe bwino za kampani yathu. Mu malonda athu ndi amalonda ochokera m'maiko angapo, nthawi zambiri timatsatira mfundo ya kufanana ndi ubwino wa onse. Tikuyembekeza kugulitsa, mogwirizana, malonda ndi ubwenzi kuti tipindule tonse. Tikuyembekezera kulandira mafunso anu.













Kuyesa Kuchuluka kwa Sodium Sulfide mu Mayankho a Iodine:
Thirani 25 mL ya yankho la muyezo wa ayodini mu botolo la ayodini la 250 mL. Onjezani 25 mL ya madzi ndi 10 mL ya yankho la glacial acetic acid.
Mukamazungulira, onjezerani yankho B lomwe linali litayikidwa kale (kuchokera pa sitepe 2). Thirani ndi yankho la sodium thiosulfate standard titration mpaka yankholo litasanduka lachikasu loyera. Kenako, onjezerani 2 mL ya yankho la starch indicator ndikupitiriza kuthira mpaka mtundu wabuluu utatheratu. Lembani kuchuluka komwe kwagwiritsidwa ntchito ngati V₂.Sodium Sulfide.