Kev siv dav dav ntawm phosphorous acid nyob rau hauv inorganic phosphorus chemistry nyob rau hauv nws cov qauv molecular tshwj xeeb thiab cov txiaj ntsig tshuaj ua haujlwm. Kev nkag siab tob dua ntawm cov txheej txheem kev siv tshuab no pab tsim kev tshawb fawb ntau dua ntawm cov txheej txheem, kev ua tau zoo, thiab nthuav dav ntawm cov ntawv thov tshiab hauv kev ua lag luam.
Phosphorous acid muaj cov mis molecular H₃PO₃, nrog cov phosphorus atom ntawm qhov chaw, tsim ib tug kwv yees li tetrahedral molecular los ntawm sp³ hybridization. Nws cov qauv suav nrog ib qho P-H daim ntawv cog lus, ob pawg hydroxyl (–OH), thiab P=O ob daim ntawv cog lus. Qhov kev teeb tsa no txiav txim siab nws cov kua qaub- cov khoom siv hauv paus raws li binary muaj zog acid-tsuas yog ob lub hydroxyl hydrogens tuaj yeem ionize hauv dej kom tso cov protons, muab cov tshuaj tiv thaiv tsis muaj zog acidity, ua kom muaj kev tswj xyuas meej hauv cov txheej txheem cuam tshuam nrog kev hloov pauv ntawm proton. Lub caij no, lub xub ntiag ntawm P-H daim ntawv cog lus tso phosphorus nyob rau hauv +3 oxidation xeev, muab nws lub zog hluav taws xob- pub dawb, uas yog lub hauv paus ntawm nws cov khoom tseem ceeb txo. P=O ob daim ntawv cog lus, vim muaj qhov siab electronegativity ntawm oxygen, ua rau phosphorus centre electrophilic, sib koom ua ke los yog nucleophilically cuam tshuam nrog cov pab pawg uas muaj ib khub ntawm electrons.
Txo cov cuab yeej yog ib qho tseem ceeb ua haujlwm hauv paus ntawm phosphorous acid. Hauv kev kho hlau saum npoo thiab electroplating, nws tuaj yeem xaiv kom txo tau siab -valence hlau ions, txhawb nqa cov hlau tsis sib xws thiab txhim kho cov txheej txheem zoo. Hauv kev kho ib puag ncig, nws tuaj yeem txo cov tshuaj chlorine seem lossis qee cov hlau hnyav ions, txo cov teeb meem ntawm cov dej hauv lub cev lossis cov pa khib nyiab. Nws lub peev xwm kev sib koom tes txhawb nqa nws siv raws li ligand hauv catalytic systems los npaj cov haujlwm ua haujlwm, lossis hauv polymer stabilization los ntawm kev khi nrog dawb radicals lossis hlau ions los tiv thaiv cov khoom degradation.
Thermal stability thiab structural convertibility kuj yog nws lub hauv paus ua haujlwm. Phosphorous acid tseem nyob ruaj khov hauv chav rau nruab nrab qhov kub thiab txias, ua kom yooj yim khaws cia, kev thauj mus los, thiab kev ua haujlwm. Tshaj li ntawm 180 degree, nws tuaj yeem dehydrate tsim phosphoric acid. Qhov kev hloov pauv uas tswj tau tsis yog tsuas yog muab qhov ua ntej rau kev npaj siab -oxidation-state phosphorus compounds tab sis kuj ua rau cov tshuaj tiv thaiv kab mob hloov pauv tau yooj yim, tso cai rau kev hloov kho cov txheej txheem raws li cov khoom lag luam.
Environmental compatibility tau dhau los ua qhov muaj txiaj ntsig zoo ntawm kev ua haujlwm nyob rau xyoo tas los no. Piv nrog rau qee cov phosphates uas muaj kuab lom heev, phosphorous acid yog yooj yim biodegradable, thiab nws cov ecological tsis tshua muaj kev pheej hmoo ua rau nws muaj txiaj ntsig zoo hauv kev txhim kho cov khoom siv ua liaj ua teb, dej kho corrosion inhibitors, thiab cov nplaim taws ntsuab, ua raws li cov kev xav tau ntawm kev txhim kho kom ruaj khov.
Hauv cov ntsiab lus, lub hauv paus ua haujlwm ntawm phosphorous acid stems los ntawm nws cov qauv tetrahedral molecular, uas muab cov acidity tunable, dual reactivity (txo thiab kev sib koom tes), tswj tau thermal hloov dua siab tshiab, thiab ib puag ncig tus phooj ywg. Cov txheej txheem hauv nruab nrab no txhawb nqa nws qhov dav thiab hauv - qhov tob hauv kev siv hlau ua, hloov pauv polymer, tshwj xeeb tshuaj lom neeg sib xyaw, thiab kev tiv thaiv ib puag ncig, thiab tseem muab lub hauv paus txhim khu kev qha tshuaj rau yav tom ntej kev tshawb nrhiav tshiab hauv cov ntaub ntawv tshiab thiab lub zog huv - thaj chaw muaj feem xyuam.
