Cov Khoom Ntawm Nitrogen: Cov Lus Qhia Kom Paub Txog Cov Roj Tseem Ceeb hauv Kev Lag Luam Tshuaj
Raws li ib qho kev siv roj inert nyob rau hauv kev lag luam tshuaj, nitrogen yog dav siv nyob rau hauv ntau yam ntau lawm thiab kev sim txheej txheem vim nws cov cim lub cev thiab tshuaj lom neeg zog. Hauv tsab xov xwm no, peb yuav tham txog cov khoom ntawm nitrogen kom ntxaws los pab koj nkag siab zoo dua qhov tseem ceeb ntawm cov roj no hauv kev lag luam.
I. Basic Physical Properties of Nitrogen
Nitrogen (N₂) yog cov roj tsis muaj xim, tsis muaj ntxhiab thiab tsis muaj tshuaj lom nyob rau hauv chav tsev kub thiab siab. Nws qhov hnyav molecular yog 28.0134 g / mol thiab qhov ceev yog 1.2506 kg / m³, uas yog me ntsis sib dua ntawm huab cua. Hauv kev tsim tshuaj lom neeg, nitrogen feem ntau yog siv los ua kom muaj qhov kub thiab txias ib puag ncig vim nws qhov kub tsis tshua muaj kub (-195.8 ° C), thiab cov kua nitrogen feem ntau yog siv los ua cov dej txias. Qhov tsis muaj solubility thiab tsis tshua muaj hluav taws xob conductivity ntawm nitrogen ua rau nws muaj txiaj ntsig zoo hauv qee qhov chaw tshwj xeeb.
Qhov thib ob, cov tshuaj inertness ntawm nitrogen
Ib qho ntawm cov yam ntxwv tseem ceeb tshaj plaws ntawm nitrogen yog nws cov tshuaj inertness. Ntawm qhov ntsuas kub thiab qhov kub siab, cov nitrogen molecule (N₂) ruaj khov heev vim nws muaj ob lub nitrogen atoms txuas los ntawm peb daim ntawv cog lus, uas ua rau nws tsis muaj zog hauv cov tshuaj lom neeg feem ntau. Cov tshuaj inertness no muaj txiaj ntsig zoo hauv ntau daim ntawv thov kev lag luam, piv txwv li, thaum siv vuam, khaws cov khoom noj thiab ua cov roj tiv thaiv hauv cov tshuaj tiv thaiv, nitrogen zoo tiv thaiv oxidation, combustion thiab lwm yam tsis xav tau tshuaj.
III. Kev nyab xeeb thiab ib puag ncig cuam tshuam ntawm nitrogen
Txawm hais tias nitrogen tau siv dav hauv kev lag luam tshuaj, nws txoj kev nyab xeeb tseem yog ib qho teeb meem tseem ceeb. Txawm hais tias nitrogen nws tus kheej tsis muaj tshuaj lom, cov dej xau ntawm nitrogen ntau nyob rau hauv ib qho chaw kaw yuav ua rau txo qis hauv oxygen concentration, uas nyob rau hauv lem yuav ua rau asphyxiation txaus ntshai. Yog li ntawd nws yog ib qho tseem ceeb los xyuas kom meej qhov cua zoo thiab cov txheej txheem kev nyab xeeb nruj thaum siv nitrogen. Raws li nitrogen yuav tsis hnov ​​​​mob nrog lwm cov khoom hauv cov huab cua, nws tsis muaj kev phom sij rau ib puag ncig thiab yuav tsis ua rau lub tsev xog paj lossis ua kom puas ozone txheej.
IV. Kev siv Nitrogen Industrial
Nitrogen muaj ntau yam kev siv hauv kev lag luam chemical vim nws cov khoom tshwj xeeb. Piv txwv li, nyob rau hauv cov tshuaj tiv thaiv, nitrogen feem ntau yog siv raws li ib tug inert gas los tiv thaiv oxidation los yog hydrolysis ntawm reactants; nyob rau hauv kev lag luam khoom noj khoom haus, nitrogen yog siv rau ntim thiab cia kom ntev lub txee lub neej ntawm cov zaub mov; Hauv kev tsim hluav taws xob, nitrogen yog siv los tiv thaiv cov khoom siv hluav taws xob zoo los ntawm ya raws lossis oxidation.
Cov ntsiab lus
Los ntawm kev txheeb xyuas cov khoom ntawm nitrogen hauv kev nthuav dav, peb tuaj yeem pom tias nitrogen yog ib qho tseem ceeb thiab tseem ceeb roj hauv kev lag luam tshuaj vim nws lub cev ruaj khov thiab tshuaj inertness. Kev nkag siab thiab kev paub txog cov khoom ntawm nitrogen tsis tsuas yog pab kom muaj kev nyab xeeb, tab sis kuj txhim kho kev lag luam ntau lawm. Hauv kev txhim kho thev naus laus zis yav tom ntej, daim ntawv thov peev txheej ntawm nitrogen yuav txuas ntxiv nthuav dav, muab ntau txoj kev daws teeb meem rau ntau yam kev lag luam.