Qhov sib txawv tseem ceeb ntawm ortho pyro thiab meta phosphoric acid yog ortho phosphoric acid muaj ib chav phosphoric acid, thiab pyro phosphoric acid muaj ob chav phosphoric acid, whereas phosphoric acid muaj ntau tshaj ob chav phosphoric acid.
Muaj ntau hom phosphoric acid tebchaw peb tuaj yeem paub qhov txawv ntawm ib leeg raws li cov phosphoric acid units uas lawv muaj.
Ortho Phosphoric Acid yog dab tsi?
Orthophosphoric acid tuaj yeem txhais tau tias yog cov ntxhia tsis muaj zog uas muaj cov tshuaj formula H3PO4. Nws yog cov kua qaub uas tsis muaj tshuaj lom. Tsis tas li ntawd, nws yog ib qho tseem ceeb phosphorous-muaj compound los ntawm cov dihydrogen phosphate ion (H2PO4-) tau muab los. Yog li, nws yog ib qho tseem ceeb heev rau cov nroj tsuag vim tias nws yog qhov loj ntawm phosphorous.
Thaum xav txog cov khoom siv tshuaj lom neeg ntawm cov khoom no, nws cov molar loj yog 97.99 g / mol, thiab lub melting point ntawm anhydrous orthophosphoric acid yog 35 degrees Celsius. Nws zoo nkaus li cov khoom dawb uas yog deliquescent ntawm chav tsev kub. Cov tshuaj no tsis muaj ntxhiab.
Orthophosphoric acid ntau lawm muaj ob txoj hauv kev ua cov txheej txheem ntub dej thiab cov txheej txheem thermal. Cov txheej txheem ntub dej siv fluorapatite (phosphate pob zeb) rau kev tsim cov kua qaub no, nrog rau cov concentrated sulfuric acid. Nyob rau hauv cov txheej txheem thermal, kua phosphorous (P 4) thiab cua nkag mus rau cov tshuaj tiv thaiv hauv lub cub tawg ntawm 1800-3000 K. Ua ntej, lub tshuab txau cov kua phosphorus mus rau hauv lub cub tawg chamber. Nyob ntawd cov phosphorous hlawv nyob rau hauv cov huab cua reacting nrog oxygen (O2). Cov khoom ntawm cov kauj ruam no reacts nrog dej nyob rau hauv lub hydration ntauwd los tsim cov kua qaub.
Daim ntawv thov tseem ceeb ntawm cov kua qaub no yog tsim cov phosphorous-muaj chiv. Muaj peb hom phosphate ntsev uas siv los ua chiv: triple phosphate, diammonium hydrogenphosphate, thiab monoammonium dihydrogenphosphate.
YPyro Phosphoric Acid yog dab tsi?
Pyro phosphoric acid yog ib qho inorganic compound uas muaj cov tshuaj formula H4P2O7. Nws tseem hu ua diphosphoric acid vim nws yog tsim los ntawm kev sib xyaw ntawm ob chav phosphoric acid. Cov tshuaj no tsis muaj xim thiab tsis muaj ntxhiab. Ntxiv mus, nws yog soluble hauv dej thiab hauv qee cov organic solvents xws li diethyl ether thiab ethyl cawv.
Daim duab 01: Cov Qauv Tshuaj ntawm Pyro Phosphoric Acid
Daim ntawv anhydrous ntawm pyrophosphoric acid tuaj yeem crystalize hauv ob daim ntawv polymorphic. Cov ester, anions, thiab ntsev ntawm cov tshuaj no yog sau npe pyrophosphates. Ntxiv mus, lub hauv paus conjugate ntawm no compound yog pyrophosphate. Cov tshuaj no suav hais tias yog ib qho corrosive compound.
Peb tuaj yeem npaj pyrophosphate los ntawm kev sib pauv ion txheej txheem siv sodium pyrophosphate. Peb tuaj yeem npaj nws los ntawm lwm txoj hauv kev uas suav nrog kev kho cov hmoov lead pyrophosphate nrog hydrogen sulfide. Feem ntau, nws tsis yog tsim los ntawm lub cev qhuav dej ntawm phosphoric acid.
Meta Phosphoric Acid yog dab tsi?
Meta phosphoric acid yog ib qho inorganic compound uas muaj cov tshuaj formula HPO3. Nws tseem hu ua hydrogen-phosphate. Nws tshwm sim raws li cov khoom sib xyaw ntawm chav tsev kub. Feem ntau, qhov sib xyaw no tshwm sim raws li cov qauv cyclic qhov twg phosphoric acid units tau sib raug zoo rau ib leeg hauv lub nplhaib qauv. Ntawm no, qhov yooj yim tshaj plaws metaphosphoric acid compound yog trimetaphosphoric acid, uas muaj peb phosphoric acid units yog sib koom ua ke nyob rau hauv ib lub nplhaib qauv. Nws muaj cov tshuaj formula H3P3O9.
Daim duab 02: Trimetapphosphoric Acid Structure
Cov hauv paus sib txuas ntawm cov tshuaj metaphosphoric acid yog cov metaphosphates. Ib qho piv txwv ntawm xws li ib tug compound yog sodium hexametaphosphate. Nws yog ib qho tseem ceeb ua ib qho sequestrant thiab ua zaub mov additive.
Qhov txawv ntawm Ortho Pyro thiab Meta Phosphoric Acid yog dab tsi?
Orthophosphoric acid tuaj yeem txhais tau tias yog cov ntxhia tsis muaj zog uas muaj cov tshuaj formula H3PO4. Pyro phosphoric acid yog ib qho inorganic compound uas muaj cov tshuaj formula H4P2O7. Meta phosphoric acid yog ib qho inorganic compound uas muaj cov tshuaj formula HPO3. Qhov sib txawv tseem ceeb ntawm ortho pyro thiab meta phosphoric acid yog tias orthophosphoric acid muaj ib chav phosphoric acid, thiab pyrophosphoric acid muaj ob phosphoric acid units, whereas phosphoric acid muaj ntau tshaj ob phosphoric acid units..
Cov infographic hauv qab no teev ntau qhov sib txawv ntawm ortho pyro thiab meta phosphoric acid nyob rau hauv daim ntawv tabular rau ib sab ntawm kev sib piv.
Summary – Ortho vs Pyro vs Meta Phosphoric Acid
Muaj ntau hom phosphoric acid tebchaw. Peb tuaj yeem paub qhov txawv ntawm lawv ib leeg raws li tus naj npawb ntawm phosphoric acid units uas lawv muaj. Qhov sib txawv tseem ceeb ntawm ortho pyro thiab meta phosphoric acid yog ortho phosphoric acid muaj ib chav phosphoric acid, thiab pyro phosphoric acid muaj ob chav phosphoric acid, whereas phosphoric acid muaj ntau tshaj ob chav phosphoric acid.
