Ti chung i sulfides pawl cu hydrolysis a fawimi an si, H2S kha thli ah a chuahter. H2S tam tuk thawchuahnak nih cun luakchuah, luakchuah, thawchuah harnak, thawchuah har, le a fakmi rungrul hna a chuahter colh. Thli 15-30 mg/m3 tluk a tlawmmi he i tong ahcun mitthli tlaknak le mit thlihran rawhnak a chuahter khawh. H2S caan saupi thawchuahnak nih protein le amino acid chung i cytochrome, oxidase, disulfide bonds (-SS-) he pehtlaihnak a tuah khawh, cellular oxidation kalning a hrawh khawh i cellular hypoxia a chuahter khawh, cucu nunnak caah tihnung a si kho.

Sodium sulfide phu pakhat cio cu a chuahkehnak hmun in a thurhnawmhnak ttihnung hloh khawhnak ding caah a cheubang hlathlainak le thurhnawmhnak hmuhnak an tuah. Thiamsang riantuannak hmuh awkah hika hi hmet.