Sodium metabisulfite (cov tshuaj formula Na₂S₂O₅) yog ib qho inorganic compound uas muaj zog txo thiab bleaching zog. Cov hauv qab no yog cov ncauj lus kom ntxaws txog nws cov khoom thiab siv:
Chemical Properties
Sodium metabisulfite yog yooj yim soluble hauv dej, thiab nws cov kua aqueous yog acidic. Nws decomposes nyob rau hauv acidic ib puag ncig, tso sulfur dioxide gas. Nws cov khoom txo qis ua rau nws haum raws li tus neeg sawv cev txo qis hauv ntau yam tshuaj tiv thaiv.
Cov ntawv thov kev lag luam
- Kev tsim tshuaj lom neeg: Siv hauv kev tsim cov sodium hydrosulfite, sulfonamides (xws li sulfadiazine), aminopyrine, thiab caprolactam.
- Purifying Agent: Siv rau kev ua kom huv ntawm chloroform, sulfone, thiab benzaldehyde.
- Kev Lag Luam Kev Lag Luam: Ua ib qho khoom hauv kev kho cov neeg sawv cev.
- Kev lag luam naj hoom: Siv hauv kev tsim cov vanillin.
- Kev lag luam brewing: siv los ua cov khoom noj.
- Roj Hmab Kev Lag Luam: Siv los ua cov roj hmab coagulant.
- Kev Lag Luam Textile: Siv los ua tus neeg sawv cev dechlorinating tom qab bleaching paj rwb ntaub.
- Dyeing thiab Leather Making: Siv los ua tus neeg saib xyuas kom txo tau cov tshuaj bleaching.
- Kev kho dej khib nyiab: Siv hauv electroplating thiab oilfield wastewater kho, nrog rau hauv kev ua ntxhia. Kev ua zaub mov:
- Preservatives: inhibit microbial kev loj hlob thiab ua rau lub neej txee.
- Bleaching Agents: Siv rau bleaching txiv hmab txiv ntoo thiab zaub.
- Cov Neeg Tawm Tswv Yim Tawm: Siv los ua cov tshuaj tua kab mob hauv cov khoom ci.
Cov kev ceev faj
Sodium metabisulfite ua rau khaus tawv nqaij thiab qhov muag; Cov cuab yeej tiv thaiv yuav tsum tau hnav thaum tuav.
Tsis txhob sib cuag nrog cov tshuaj acidic thaum khaws cia kom tsis txhob decomposition.
Khoom noj khoom haus -qib sodium metabisulfite yuav tsum ua raws li cov qauv kev nyab xeeb khoom noj hauv lub tebchaws.
