Qhov sib txawv tseem ceeb ntawm oleum thiab sulfuric acid yog tias oleum yog sulfur trioxide hauv sulfuric acid whereas sulfuric acid yog inorganic acid uas muaj cov tshuaj formula H 2 SO 4.
Peb hu oleum li "fuming sulfuric acid" thiab. Nws muaj sulfur trioxide nyob rau hauv sulfuric acid tab sis nyob rau hauv ntau yam compositions. Peb tuaj yeem sau cov tshuaj formula rau cov kua syrupy no li y SO 3H2O uas "y" muab tag nrho cov molar ntsiab lus ntawm sulfur trioxide.. Sulfuric acid, ntawm qhov tod tes, yog cov kua syrupy, uas yog dej soluble heev. Nws tseem yog hygroscopic. Cov kua qaub no muaj qhov muaj zog acidic zoo ib yam. Cov ntsiab lus ntxiv nyob hauv qab no.
Oleum yog dab tsi?
Lub oleum yog "fuming sulfuric acid" uas muaj sulfur trioxide nyob rau hauv ntau yam muaj nyob rau hauv sulfuric acid. Cov tshuaj formula ntawm no compound yog y SO3H2O uas "y" muab tag nrho cov ntsiab lus molar ntawm sulfur trioxide. Thaum tus nqi ntawm y hloov pauv, peb tuaj yeem tau txais oleum series. Lwm cov qauv sib npaug yog H2SO4 x SO3 Muaj "x" muab cov molar dawb sulfur cov ntsiab lus trioxide. Cov txheej txheem tsim khoom ntawm qhov sib xyaw no yog "kev sib cuag". Nyob ntawd, peb thawj zaug oxidize sulfur rau hauv sulfur trioxide. Tom qab ntawd peb tuaj yeem yaj cov khoom no hauv cov concentrated sulfuric acid. Tsis tas li ntawd, yog peb dilute oleum, nws regenerates sulfuric acid.
Daim duab 01: Oleum hauv ib lub raj mis
Thaum lub sijhawm dhau los, cov tuam txhab siv cov txheej txheem ua cov khoom siv lead ua rau qhov kev tsim khoom no, tab sis tam sim no nws tsis siv vim corrosion ntawm txhuas los ntawm sulfuric acid. Muaj cov ntawv thov tseem ceeb ntawm oleum, piv txwv li, nws yog ib qho tseem ceeb rau kev tsim cov sulfuric acid. Tsis tas li ntawd, nws yog ib qho tseem ceeb raws li qhov nruab nrab rau kev thauj mus los ntawm sulfuric acid. Cov tshuaj no yog corrosive heev; yog li ntawd, nws yog ib qho tseem ceeb raws li ib tug hnyav reagent nyob rau hauv kev tshawb fawb. Ntxiv mus, peb tuaj yeem siv nws hauv kev tsim cov khoom tawg.
Sulfuric Acid yog dab tsi?
Sulfuric acid yog ib qho inorganic acid uas muaj cov tshuaj formula H2SO4 Nws yog cov kua uas tsis muaj xim thiab tsis muaj ntxhiab uas muaj kuab heev.. Nws yooj yim yaj hauv dej. Cov tshuaj tiv thaiv ntawm no dissolution yog heev exothermic. Tsis tas li ntawd, nws yog hygroscopic heev. Qhov no compound muaj ib tug muaj zog acidic xwm thiab yog li, nws yog heev corrosive. Yog li ntawd, cov concentrated daim ntawv ntawm no acid yog teeb meem thaum nyob rau hauv kev sib cuag nrog daim tawv nqaij.
Daim duab 02: Sulfuric Acid
Cov molar loj ntawm cov tshuaj no yog 98.07 g / mol. Kev siv ntau tshaj plaws ntawm cov kua qaub no yog tsim cov chiv. Tsis tas li ntawd, nws muaj txiaj ntsig zoo hauv cov roj refining, kev ua dej khib nyiab thiab kev sib txuas ntawm cov tshuaj sib txawv.
Qhov txawv ntawm Oleum thiab Sulfuric Acid yog dab tsi?
Lub oleum yog "fuming sulfuric acid" uas muaj sulfur trioxide nyob rau hauv ntau yam muaj nyob rau hauv sulfuric acid. Peb tuaj yeem sau cov tshuaj formula ntawm cov tshuaj no raws li y SO3H2O lossis H2SO 4 x SO3 Ntxiv mus, cov molar pawg ntawm cov tshuaj no sib txawv nrog cov sib txawv ntawm sulfur trioxide. Sulfuric acid yog cov ntxhia pob zeb. Cov tshuaj formula ntawm no compound yog H2SO4Tsis tas li ntawd, cov molar loj ntawm nws yog 98.07 g / mol. Qhov no yog qhov txawv ntawm oleum thiab sulfuric acid.
Summary – Oleum vs Sulfuric Acid
Lub oleum yog ib qho tseem ceeb ntawm sulfuric acid. Qhov txawv ntawm oleum thiab sulfuric acid yog tias oleum yog sulfur trioxide nyob rau hauv sulfuric acid whereas cov kua qaub yog thiab ib qho inorganic acid muaj cov tshuaj formula H 2 SO 4.
