I-Phosphorous Acid，inhlanganisela engaphili enefomula yamakhemikhali i-H3PO3. Iyimpuphu emhlophe ekristalu, encibilika kalula emanzini nase-ethanol, futhi i-oxidized kancane ibe yi-orthophosphate emoyeni. I-Phosphite iyi-asidi ye-dibasic, i-asidi yayo inamandla kancane kune-phosphoric acid, inempahla yokunciphisa enamandla, kulula ukunciphisa ama-ion esiliva (Ag+) abe yinsimbi yesiliva (Ag), inganciphisa i-sulfuric acid ibe yi-sulfur dioxide. Ine-hygroscopicity enamandla kanye nokuthambekela, futhi iyabola. I-Phosphite isetshenziswa kakhulu njenge-ejenti yokunciphisa, i-ejenti yokukhanyisa i-nylon, kodwa futhi isetshenziswa njengezinto zokusetshenziswa ze-phosphite, izinto zokusetshenziswa kwezibulala-zinambuzane kanye nezinto zokusetshenziswa zokwelashwa kwamanzi ze-phosphorus.
Izakhiwo:Impuphu emhlophe ekristalu. Incibilika emanzini nasetshwaleni. Ubuningi: 1.651g/cm3, iphuzu lokuncibilika: 73℃, iphuzu lokubila: 200℃.
ISICELO:
1.I-phosphorus acidIsetshenziselwa ukukhiqiza usawoti we-phosphate womanyolo njenge-potassium phosphite, i-ammonium phosphite kanye ne-calcium phosphite. Ihileleke kakhulu ekulungiseleleni ama-phosphite afana ne-aminotris (i-methylenephosphonic acid) (ATMP), i-1-hydroxyethane 1,1-diphosphonic acid (HEDP) kanye ne-2-phosphonobutane-1,2,4-tricarboxylic Acid (PBTC), asetshenziswa ekwelapheni amanzi njengesikali noma isithiyo esibhubhisayo. Iphinde isetshenziswe ekuphenduleni kwamakhemikhali njenge-ejenti yokunciphisa. Usawoti wayo, i-lead phosphite isetshenziswa njenge-PVC stabilizer. Iphinde isetshenziswe njengesandulela ekulungiseleleni i-phosphine kanye nanjengesixhumi esiphakathi ekulungiseleleni amanye ama-compounds e-phosphorus.
2.I-phosphorus acid(H3PO3, i-orthophosphorus acid) ingasetshenziswa njengenye yezingxenye zokusabela zokwenziwa kwalokhu okulandelayo:
ama-α-aminomethylphosphonic acids nge-Mannich-Type Multicomponent Reaction
Ama-asidi angu-1-aminoalkanephosphonic nge-amidoalkylation alandelwe yi-hydrolysis
Ama-α-aminophosphonic acid avikelwe yi-N (ama-phospho-isosteres ama-amino acid emvelo) nge-amidoalkylation reaction
3. Ukusetshenziswa Kwezimboni: Lo mqoqi usanda kuthuthukiswa futhi usetshenziswe ngokuyinhloko njengomqoqi othize we-cassiterite kusuka kuma-ore anokwakheka okuyinkimbinkimbi kwe-gangue. Ngokusekelwe ku-phosphonic acid, u-Albright noWilson bathuthukise uhla lwabaqoqi ikakhulukazi ukuze kufakwe amaminerali e-oxidic (okungukuthi i-cassiterite, i-ilmenite kanye ne-pyrochlore). Kuncane kakhulu okwaziwayo ngokusebenza kwalaba baqoqi. Izifundo ezilinganiselwe ezenziwe ngama-ore e-cassiterite kanye ne-rutile zibonise ukuthi abanye balaba baqoqi bakhiqiza igwebu elikhulu kodwa babekhetha kakhulu.
Indlela yokukhiqiza:
Izindlela zokukhiqiza zezimboni zifaka phakathi i-trichloroic phosphorus kanye nosawoti we-phosphoric acid. Indlela ye-hydrolysis yengeza amanzi kancane kancane ekusabeleni kwe-hydrolysis ngaphansi kokuxubana kwe-trichloride ukuze kukhiqizwe i-sub-phosphoric acid. Ngemva kokucwengisisa, i-ChemicalBook ebandayo, kwenziwa i-crystallization kanye nokushintsha kombala, bese kwenziwa umkhiqizo oqediwe. I-PCI3+3H2O → H3PO3+3HCL yayo ikhiqiza ukuphinda kusetshenziswe i-hydrogen chloride ngesikhathi senqubo yokukhiqiza, engenziwa ibe yi-hydrochloric acid.
Ukuphepha:
Izici zengozi yokusha: embobeni ye-H evuthayo; Ukushisa kubola umusi onobuthi we-phosphorus oxide.
Izici zokugcina kanye nezokuthutha: umoya ongenisa umoya endaweni yokugcina impahla, izinga lokushisa eliphansi lomile; Gcina ngokwehlukana ne-H pore-releasing agent kanye ne-alkali.
Ukupakisha: 25kg/Isikhwama
Indawo Yokugcina: Gcina endaweni evaliwe kahle, engangenisi ukukhanya, futhi uvikele emswakama.
Isikhathi sokuthunyelwe: Feb-27-2023