Tus Neeg Sawv Cev Txo (Rongalite)
Lub Npe Tshuaj: Sodium hydrosulfite
Piv rau cov neeg sawv cev oxidizing, Rongalite ua rau muaj kev puas tsuaj tsawg dua rau cov ntaub. Nws tuaj yeem siv rau ntawm cov ntaub ua los ntawm ntau yam fibers yam tsis ua rau muaj kev puas tsuaj, yog li ntawd lub npe "Rongalite" (txhais tau tias "hmoov zoo" hauv Suav). sodium hydrosulfite yog cov xuab zeb dawb crystalline lossis lub teeb daj hmoov tshuaj nrog lub melting point ntawm 300 ° C (decomposition) thiab qhov kub ignition ntawm 250 ° C. Nws yog insoluble nyob rau hauv ethanol tab sis soluble nyob rau hauv sodium hydroxide kua. Thaum kov dej, nws reacts vigorously thiab combusts.
Peb txoj kev tswj xyuas zoo ntawm sodium hydrosulfite yog nruj heev, txhua pawg khoom raug kuaj xyuas los ntawm lub Hoobkas thiab kev tshuaj xyuas SGS, kom ntseeg tau tias qhov zoo tuaj yeem tiv taus lub sijhawm sim. Nyem qhov no kom tau txais tus nqi luv nqi.