Txoj Kev Tsim Khoom ntawm Sodium Sulfide
Txoj Kev Txo Cov Pa roj Carbon: Sodium sulfate raug yaj thiab txo los ntawm kev siv cov thee anthracite lossis nws cov khoom siv hloov. Cov txheej txheem no tau tsim zoo, nrog cov khoom siv thiab kev ua haujlwm yooj yim, thiab siv cov khoom siv raw pheej yig, yooj yim nrhiav tau.

Cov flakes sodium sulfide liab/daj zoo, tswj kev tsim khoom nruj me ntsis thoob plaws hauv cov txheej txheem, ruaj khov zoo ib pawg, thiab tuaj yeem muab tau ntau ntau.