Lub npe phosphoric acid yog IUPAC lub npe ntawm orthophosphoric acid. Lub prefix -ortho yog siv los qhia qhov txawv ntawm cov kua qaub no los ntawm lwm cov phosphorous uas muaj cov kua qaub (polyphosphoric acids). Tsis muaj qhov sib txawv ntawm orthophosphoric acid thiab phosphoric acid vim tias ob lub npe no piav txog tib lub ntsiab lus.
YOrthophosphoric Acid yog dab tsi?
Orthophosphoric acid yog ib qho tsis muaj zog ntxhia acid 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 cov khoom sib txuas los ntawm cov dihydrogen phosphate ion (H2PO4–.) muab tau. Yog li, nws yog ib qho tseem ceeb heev rau cov nroj tsuag vim tias nws yog qhov loj ntawm phosphorous.
Daim duab 01: Cov Qauv Tshuaj ntawm Orthophosphoric Acid
Qee cov lus tseeb txog cov kua qaub no yog raws li hauv qab no:
- Chemical formula=H3PO4
- Molar mass=97.99 g/mol
- Melting point=35 °C (anhydrous form)
- Boiling point=158 °C
- Zoo=ib qho khoom dawb, deliquescent
- Sau=tsis muaj ntxhiab
Orthophosphoric acid ntau lawm muaj ob txoj hauv kev xws li cov txheej txheem ntub dej thiab cov txheej txheem thermal. Cov txheej txheem ntub dej siv fluoroapetite (phosphate pob zeb) rau kev tsim cov kua qaub no nrog rau cov concentrated sulfuric acid. Cov tshuaj tiv thaiv yog raws li nram no:
Ca5(PO4)3F + 5H2SO 4 + 10H2O →3H3PO4 + 5CaSO4.2H2O + HF
Nyob rau hauv cov txheej txheem thermal, kua phosphorous (P4) thiab cua nkag mus rau cov tshuaj tiv thaiv hauv lub qhov cub ntawm 1800-3000 K. Ua ntej, lub tshuab txau cov kua phosphorus 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.
P4(l)+ 5O2(g)→2P2O 5(g)
P2O5(g)+ 3H2O (l)→2H3PO4(aq)
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 superphosphate (TSP)
- Diamonium hydrogenphosphate (DAP)
- Monoammonium dihydrogenphosphate (MAP).
Phosphoric Acid yog dab tsi?
Phosphoric acid yog IUPAC lub npe ntawm orthophosphoric acid.
Qhov txawv ntawm Orthophosphoric Acid thiab Phosphoric Acid
Tsis muaj qhov sib txawv ntawm orthophosphoric acid thiab phosphoric acid vim ob lub npe piav txog tib cov tshuaj sib xyaw uas muaj cov tshuaj formulaH3PO4.
Summary – Orthophosphoric Acid vs Phosphoric Acid
Tsis muaj qhov sib txawv ntawm orthophosphoric acid thiab phosphoric acid vim tias ob lub npe no piav txog tib lub ntsiab lus. Lub sij hawm phosphoric acid yog IUPAC lub npe ntawm orthophosphoric acid.
