Txawm hais tias sodium metabisulfite thiab sodium hyposulfite muaj cov npe zoo sib xws, lawv txawv ntawm cov khoom siv tshuaj, kev siv, thiab kev nyab xeeb.
1. Cov ntaub ntawv yooj yim
Sodium metabisulfite, tseem hu ua sodium metabisulfite, muaj cov mis molecular Na₂S₂O₅. Nws feem ntau yog cov hmoov dawb lossis daj crystalline hmoov uas muaj cov tshuaj sulfur dioxide muaj zog. Sodium hyposulfite, feem ntau hu ua sodium hydrosulfite, muaj cov mis molecular Na₂S₂O₄ thiab zoo li cov pob zeb dawb dawb los yog cov hmoov daj daj.
2. Cov khoom siv tshuaj
Sodium metabisulfite yog yooj yim soluble hauv dej, thiab nws cov kua aqueous yog acidic. Nrog ntev cia, nws maj mam oxidizes rau sodium sulfate. Sodium hyposulfite, ntawm qhov tod tes, muaj zog txo cov khoom thiab yooj yim oxidized hauv huab cua. Nws tuaj yeem tsim hluav taws xob lossis hluav taws kub thaum raug dej lossis dej noo, thiab nws tuaj yeem cuam tshuam nrog ntau yam hlau ions.
3. Siv
Sodium metabisulfite yog dav siv los ua zaub mov ntxiv, muab tshuaj dawb, khaws cia, thiab ua haujlwm antioxidant. Hauv kev lag luam dyeing thiab luam ntawv, nws yog siv los ua tus neeg sawv cev dechlorinating tom qab bleaching paj rwb ntaub. Sodium hyposulfite yog ib qho tseem ceeb txo tus neeg sawv cev hauv kev lag luam dyeing thiab luam ntawv thiab tuaj yeem siv rau kev khaws cia hauv kev lag luam zaub mov, tab sis nws siv thiab ntau npaum li cas yog nruj me ntsis txwv.
4. Kev nyab xeeb
Sodium metabisulfite yog qee yam khaus rau ntawm daim tawv nqaij, ob lub qhov muag, thiab ua pa, tab sis kuj muaj kev nyab xeeb nyob rau hauv cov kev siv ntau yam. Sodium hyposulfite yog cais raws li Class 1 flammable tshuaj nyob rau hauv kev sib cuag nrog dej; Nws tuaj yeem tso tawm ntau cov cua sov thiab sulfur dioxide thaum sib cuag nrog dej, ua rau muaj kev pheej hmoo ntawm combustion thiab tawg, thiab ua rau mob heev thiab corrosive rau tib neeg.
