Thaum raug cua, sodium hydrosulfite yooj yim nqus cov pa oxygen thiab oxidizes. Nws kuj nqus cov dej noo, tsim cua sov thiab ua rau puas tsuaj. Nws tuaj yeem sib sau ua ke thaum nqus cov pa oxygen hauv huab cua thiab tso tawm cov ntxhiab tsw qab.
Na₂S₂O₄ + 2H₂O + O₂ → 2NaHSO₄ + 2[H]
Kev ua kom sov lossis raug nplaim taws qhib tuaj yeem ua rau muaj kev kub hnyiab, nrog rau qhov kub ntawm 250 ° C. Kev sib cuag nrog dej tso tawm ntau qhov kub thiab cov pa roj uas yooj yim hlawv xws li hydrogen thiab hydrogen sulfide, ua rau kub hnyiab heev. Thaum ua ke nrog cov neeg sawv cev oxidizing, me ntsis dej, lossis cua noo, sodium hydrosulfite tuaj yeem tsim cua sov, tso pa daj, hlawv, lossis txawm tias tawg.
Nrog rau ntau yam kev siv dav heev, sodium hydrosulfite yog qhov tseem ceeb rau kev ua kom cov ntaub thiab ntawv dawb, thiab kuj siv rau hauv kev khaws cia zaub mov. Nws kuj muab kev ua tau zoo tshaj plaws hauv kev tsim tshuaj, kev ntxuav khoom siv hluav taws xob, kev tshem tawm cov xim ntawm cov dej khib nyiab, thiab ntau ntxiv. Nyem qhov no kom tau txais kev pabcuam zoo thiab tus nqi.