Cov txheej txheem txheej txheem ntawm cov phosphoric acid ua haujlwm ua haujlwm hauv cov kua qaub acidic. Hauv kev daws teeb meem alkaline, pab pawg no tso tawm ob lub hydrogen atoms, thiab ionized phosphate muaj tus nqi them rau -2. Cov phosphate Ion yog cov polyatomic ion muaj cov phosphorus atom puag ncig los ntawm plaub oxygen atoms, tsim cov tetrahedron. PHOOSPPHAT ion muaj tus nqi them nyiaj ntawm -3 thiab yog lub hauv paus conjugate ntawm hydrogen phosphate ion; Lub hydrogen phosphate Ion yog lub hauv paus conjugate ntawm cov मherdrogen phosphate ion ion; Thiab Dihydrogen phosphate Ion yog lub hauv paus convugate paus ntawm phosphoric acid. Nws yog hypervalent molecule (lub phosphorus atom muaj 10 electrons nyob rau hauv nws lub plhaub valence). Phosphate kuj yog ib tus organophosphorus sib xyaw nrog cov tshuaj op (lossis).
Nrog rau kev zam qee cov hlau alkali, feem ntau phosphates yog insoluble hauv dej nyob rau hauv cov qauv ntawm cov qauv.
Nyob rau hauv Dilute cov kev daws teeb meem, phosphate tshwm sim hauv plaub daim ntawv. Nyob rau hauv ib puag ncig alkaline muaj tseeb, cov ntsev phosphate ion muaj ntau nplua mias; Nyob rau hauv ib puag ncig alkally alkally, hydrogen phosphate ion muaj ntau dua. Nyob rau hauv ib puag ncig acid tsis muaj zog, dihydrogen phosphate ions muaj ntau dua; Nyob rau hauv ib puag ncig cov kua qaub, dej {- soluble phosphoric acid yog daim ntawv tseem ceeb.
