SHS kuj tseem hu ua dithionite concentrate, sodium dithionite lossis sodium dithionite (Na2S2O4). Dawb los yog yuav luag dawb hmoov, tsis pom qhov tsis huv, tsw ntxhiab tsw phem. Nws tuaj yeem raug cais raws li cov lej lis kev cai 28311010 thiab 28321020.
Cov khoom uas siv cov txheej txheem galvanizing thiab cov txheej txheem sodium formate tuaj yeem siv sib pauv tau hauv ntau daim ntawv thov. Cov neeg ua haujlwm hauv kev lag luam hauv tsev hais tias txawm hais tias cov neeg siv khoom lag luam denim (textile) nyiam cov khoom lag luam zinc vim lawv cov hmoov av tsawg thiab ruaj khov zoo, tus lej ntawm cov neeg siv khoom no tsawg thiab feem ntau cov neeg siv khoom siv cov khoom no hloov pauv. Raws li kev ceeb toom raug cai, nws tau xa mus rau DGTR.
Hauv kev lag luam textile, sodium dithionite yog siv rau kev zas xim vat thiab indigo dyes, thiab rau kev ntxuav da dej ntawm cov ntaub ua los ntawm cov khoom siv fiber kom tshem tawm cov dyes.
Ib xyoos dhau los, DGTR tau pib tshawb nrhiav kev tiv thaiv kev pov tseg thiab tam sim no pom zoo kom sau tus nqi ADD sib npaug rau qhov tsawg dua ntawm qhov nyiaj pov tseg thiab qhov nyiaj puas tsuaj los kho qhov kev puas tsuaj rau kev lag luam hauv tsev.
Lub koom haum tab tom thov kom muaj tus nqi se ntawm C$440 rau ib metric ton (MT) rau cov pa luam yeeb siv lawm uas los ntawm lossis xa tawm ntawm Tuam Tshoj. Nws kuj tau thov kom muaj tus nqi se ntawm $300 rau ib ton rau SHS uas los ntawm lossis xa tawm ntawm Kaus Lim Qab Teb.
Tus DGTR tau hais tias ADD yuav siv tau rau tsib xyoos txij li hnub uas Tsoom Fwv Tebchaws Is Nrias teb tau ceeb toom txog qhov no.