Qhov sib txawv tseem ceeb ntawm fuming nitric acid thiab concentrated nitric acid yog tias cov fuming nitric acid tsim cov xim tsis muaj xim, daj lossis xim av xim av thaum cov concentrated nitric acid feem ntau tsis tsim fume; tab sis qhov concentration siab heev ntawm cov kua qaub no yuav ua rau cov pa taws dawb dawb.
Nitric acid yog ib qho corrosive thiab txaus ntshai acid uas muaj cov tshuaj formula HNO3. Ntxiv mus, nws muaj peev xwm muaj ib tug dilute los yog concentrated tshuaj xwm. Txawm li cas los xij, nws muaj nitric acid molecules yaj hauv dej. Cov tshuaj tiv thaiv ntawm nitrogen dioxide thiab dej tsim nitric acid. Tab sis nyob rau hauv kev npaj ntawm fuming nitric acid, peb tuaj yeem npaj nws los ntawm kev ntxiv nitrogen dioxide rau nitric acid.
Fuming Nitric Acid yog dab tsi?
Fuming nitric acid yog qib kev lag luam ntawm nitric acid uas muaj cov ntsiab lus siab heev thiab ceev ceev. Nws muaj 90-99% HNO3. Peb tuaj yeem npaj cov kua no los ntawm kev ntxiv nitrogen dioxide ntau dhau rau nitric acid. Nws tsim cov xim tsis muaj xim, daj lossis xim av fuming kua uas yog corrosive heev. Yog li ntawd, cov kua qaub no muaj cov roj molecules ua ke nrog dej; tsis muaj dej hauv nws. Cov pa taws ntawm cov kua qaub no tawm ntawm cov kua qaub; Qhov no ua rau nws lub npe, "fuming". Cov tshuaj formula ntawm no compound yog HNO3-xNO2
Tsis tas li ntawd, muaj ob hom loj ntawm cov kua qaub no ua dawb thiab liab fuming nitric acid. Yog li ntawd, peb xav txog cov dawb fuming acid raws li cov purest daim ntawv ntawm nitric acid muaj tsawg tshaj li 2%; qee zaum, tsis muaj dej txhua. Yog li, nws yog ze heev rau anhydrous nitric acid, thiab nws muaj li 99% kua. Nws muaj qhov siab tshaj plaws ntawm 0.5% nitrogen dioxide. Nws muaj txiaj ntsig zoo li oxidizer storable thiab foob pob hluav taws.
Daim duab 01: Dawb Fuming Nitric Acid
Red fuming nitric acid muaj 90% HNO3. Nws muaj cov ntsiab lus nitrogen dioxide siab, uas ua rau cov tshuaj tshwm hauv cov xim liab-xim av. Nws muaj qhov ntom ntom tsawg dua 1.49 g / cm 3 Yog li, nws kuj tseem muaj txiaj ntsig zoo li oxidizer khaws cia thiab foob pob hluav taws. Txhawm rau npaj cov kua qaub no, peb tuaj yeem siv 84% nitric acid thiab 13% dinitrogen tetroxide nrog 2% dej.
Siv:
- Red fuming nitric acid yog ib feem ntawm cov tshuaj monopropellant.
- Siv zoo li ib qho roj hauv foob pob hluav taws.
- As khaws cia oxidizers.
- Dawb fuming nitric acid yog siv los tsim cov khoom tawg. Piv txwv li: nitroglycerine.
Nitric acid yog dab tsi?
Concentrated nitric acid yog ib qho tshuaj uas muaj nitric acid ntau dua hauv dej tsawg. Qhov no txhais tau hais tias cov ntsiab lus ntawm cov kua qaub no muaj cov dej tsawg dua piv rau cov kua dej hauv nws. Hauv kev lag luam nplai, 68% lossis nce siab yog suav tias yog cov concentrated nitric acid.
Daim duab 02: 70% Nitric Acid
Ntxiv mus, qhov ceev ntawm cov tshuaj no yog 1.35 g / cm3. Qhov concentration ntau no tsis tsim cov pa taws, tab sis qhov siab heev ntawm cov kua qaub no yuav ua rau cov pa taws dawb dawb. Peb tuaj yeem tsim cov kua dej no los ntawm reacting nitrogen dioxide nrog dej.
Qhov txawv ntawm Fuming Nitric Acid thiab Concentrated Nitric Acid yog dab tsi?
Fuming nitric acid yog qib kev lag luam ntawm nitric acid uas muaj cov ntsiab lus siab heev thiab ceev ceev. Tsis tas li ntawd, nws tsim cov xim tsis muaj xim, daj lossis xim av xim av. Qhov qis tshaj ntawm cov kua qaub no yog 90%. Concentrated nitric acid yog ib qho tshuaj uas muaj nitric acid ntau dua hauv dej tsawg. Qhov qis tshaj ntawm cov kua qaub no yog 68%. Ntxiv rau qhov ntawd, cov kua qaub no feem ntau tsis tsim fume; tab sis qhov siab heev ntawm cov kua qaub no yuav muab cov pa tawm dawb dawb. Cov nram qab no infographic nthuav tawm cov ntsiab lus ntxiv ntawm qhov sib txawv ntawm fuming nitric acid thiab concentrated nitric acid.
Summary – Fuming Nitric Acid vs Concentrated Nitric Acid
Muaj ob hom nitric acid uas muaj qhov siab ntawm HNO3; Lawv yog fuming nitric acid thiab concentrated nitric acid. Qhov sib txawv tseem ceeb ntawm fuming nitric acid thiab concentrated nitric acid yog tias cov fuming nitric acid tsim cov xim tsis muaj xim, yellowish los yog brownish fuming whereas cov concentrated nitric acid feem ntau tsis tsim fume; tab sis qhov muaj siab heev ntawm cov kua qaub no yuav ua rau cov pa taws dawb dawb.
