Peb ua raws li txoj cai tswjfwm ntawm "Qhov zoo tshaj plaws yog qhov zoo tshaj plaws, Kev pabcuam yog qhov zoo tshaj plaws, Kev nyiam yog thawj zaug", thiab yuav ua siab dawb siab zoo tsim thiab sib qhia kev vam meej nrog txhua tus neeg siv khoom rau Factory Price 60% Min Na2s Yellow Flakes Sodium Sulphide Flake Red, Peb yuav txuas ntxiv siv zog los txhim kho peb lub tuam txhab thiab muab cov khoom lag luam zoo tshaj plaws nrog cov nqi sib tw. Txhua qhov kev nug lossis lus pom zoo raug txais tos heev. Nco ntsoov hu rau peb dawb.
Peb ua raws li txoj cai tswjfwm ntawm "Qhov zoo tshaj plaws yog qhov zoo tshaj plaws, Kev pabcuam yog qhov zoo tshaj plaws, Kev nyiam yog thawj zaug", thiab yuav ua siab dawb siab zoo tsim thiab sib qhia kev vam meej nrog txhua tus neeg siv khoom rau, Nrog lub siab ua lag luam ntawm "kev ua haujlwm siab, kev yooj yim, kev siv tau thiab kev tsim kho tshiab", thiab ua raws li cov lus qhia pabcuam ntawm "zoo tab sis tus nqi zoo dua," thiab "kev qiv nyiaj thoob ntiaj teb", peb tau siv zog los koom tes nrog cov tuam txhab khoom siv tsheb thoob plaws ntiaj teb kom ua tiav kev sib koom tes yeej-yeej.













Kev txiav txim siab ntawm Sodium Sulfide
Cov Tshuaj Sodium Sulfide Reagents
Cov kua qaub glacial acetic acid: 1 + 10
Kev daws teeb meem iodine titration txheem: kwv yees li 0.1 mol / L
Cov tshuaj sodium thiosulfate titration txheem: kwv yees li 0.1 mol/L
Cov tshuaj qhia txog hmoov txhuv nplej siab
95% ethanol
Cov kua sodium carbonate: 10%
Cov kua zinc sulfate: 10%