Kev ua haujlwm ntawm cov tshuaj sodium hydroxide yog tshem tawm lossis nqus cov kua qaub roj impurities sib xyaw hauv cov pa roj, xws li carbon dioxide, sulfur dioxide, nitrogen dioxide, hydrogen chloride, hydrogen fluoride, thiab lwm yam. Tsis tas li ntawd, nws tuaj yeem yaj ammonia gas, tshem tawm. sulfur dioxide thiab lwm cov pa phem hauv cov pa tawm, thiab tiv thaiv ib puag ncig. . Cov tshuaj sodium hydroxide hauv lub neej tuaj yeem tshem tawm cov roj stains hauv chav ua noj.
Yuav khaws cov tshuaj sodium hydroxide li cas
1. Cov khoom siv sodium hydroxide yuav tsum tau muab ntim rau hauv lub sijhawm cia, vim tias sodium hydroxide yooj yim rau deliquescence, thiab qhov tseem ceeb tshaj, sodium hydroxide yooj yim ua rau cov pa roj carbon dioxide hauv huab cua los tsim sodium carbonate thiab dej, kom sodium hydroxide deteriorates. Yog li ntawd, kev cia cov khoom siv sodium hydroxide lossis sodium hydroxide tov yuav tsum tau muab kaw.
2. Nco ntsoov tias cov iav fwj rau khaws cov tshuaj sodium hydroxide tsis tuaj yeem siv cov iav stoppers (feem ntau yog ntoo stoppers), vim hais tias iav zoo tib yam muaj ntau silicon dioxide, thiab sodium hydroxide tuaj yeem hnov mob nrog silicon dioxide: 2NaOH plus SiO2 =Na2SiO3 plus H2O. Qhov tshwm sim ntawm sodium silicate tuaj yeem ua rau lub iav stopper lo rau lub khob iav thiab ua rau nws nyuaj rau qhib.