Cov txheej txheem yooj yim ntawm kev sim thiab kev npaj ua lag luam ntawm oxygen
Dec 10, 2022
Oxygen tau npaj hauv chav kuaj, vim tias qhov yuav tsum tau muaj tsawg, yog li peb tuaj yeem siv cov poov tshuaj permanganate los npaj nws. Yog li, dab tsi yog qhov tshwj xeeb ntawm kev ua haujlwm hauv txoj kev no? Dab tsi yog qhov txawv ntawm kev npaj ua lag luam hauv cov txheej txheem npaj? Cia peb kawm hauv qab no.
Lub chaw soj nstuam npaj cov pa kom sov poov tshuaj permanganate, cov tshuaj formula yog: 2KMnO4===(△) K2MnO4 ntxiv rau MnO2 ntxiv rau O2↑, thiab cov catalyst MnO2 yog siv los ua kom sov poov tshuaj chlorate, cov tshuaj formula yog: 2KClO{{8 }}(△,MnO2) 2KCl ntxiv rau 3O2↑ , Hydrogen peroxide (hydrogen peroxide) generates O2 thiab H2O nyob rau hauv lub catalyst MnO2 (los yog liab cib hmoov, qos yaj ywm, cement, xeb, thiab lwm yam), thiab cov tshuaj formula yog: 2H2O{ {18}}(MnO2) 2H2O plus O2↑
Muaj kev tsim cov pa oxygen: 1. compressed cua txias. 2. Molecular sieve: Cov txheej txheem ntawm kev tsim cov pa oxygen hauv nuclear submarines: 2Na2O2 ntxiv rau 2CO2===2Na2CO3 ntxiv rau O2 Qhov zoo ntawm txoj kev no: 1. Nws yog nqa tawm ntawm chav tsev kub. 2. Ua kom cov pa oxygen thiab carbon dioxide tsim ib lub voj voog (cov neeg haus oxygen thiab exhale carbon dioxide, thiab cov tshuaj tiv thaiv no siv cov pa roj carbon dioxide los tsim cov pa oxygen). Kev tsim cov pa oxygen kuj tseem tuaj yeem siv sodium peroxide (Na2O2 reacts nrog dej los tsim sodium hydroxide thiab oxygen. Tsis tas li ntawd, Potassium chlorate yog rhuab los tsim cov poov tshuaj chloride thiab oxygen, sulfur trioxide tuaj yeem decomposed los tsim cov pa oxygen, thiab hypochlorous acid tuaj yeem ua tau. kuj tsim cov pa oxygen thiab chlorine hauv qab catalysis ntawm cua sov thiab manganese dioxide, nrog rau cov dej electrolyzed. Oxygen, ib qho txaus concentration ntawm oxygen yog muab rho tawm los ntawm cov pa-enriched daim nyias nyias, Lus Cim: Cov ntsiab lus oxygen ntawm 30 feem pua yog qhov zoo tshaj plaws concentration rau lub cev, hu ua oxygen-enriched state.
