I-Phosphorous Acid，ikhompawundi engangcolisiyo enefomyula yekhemikhali i-H3PO3. Yipowder emhlophe ekristale, enyibilika lula emanzini nakwi-ethanol, kwaye inyibilikiswa kancinci ibe yi-orthophosphate emoyeni. I-Phosphite yi-asidi ye-dibasic, i-asidi yayo inamandla kancinci kune-phosphoric acid, inepropathi enamandla yokunciphisa, kulula ukuyinciphisa i-ions yesilivere (Ag+) ibe yintsimbi yesilivere (Ag), inokunciphisa i-sulfuric acid ibe yi-sulfur dioxide. Ine-hygroscopicity enamandla kunye nokungaguquguquki, kwaye iyabola. I-Phosphite isetyenziswa kakhulu njenge-arhente yokunciphisa, i-arhente yokukhanyisa ye-nylon, kodwa ikwasetyenziswa njengezinto eziluhlaza ze-phosphite, izinto ezisetyenziswa kwi-pesticide kunye nee-agent zonyango lwamanzi ze-phosphorus ze-organic.
Iipropati:umgubo omhlophe ocwebezelayo. Inyibilika emanzini nasetywala. Ubuninzi: 1.651g/cm3, iqondo lokunyibilika: 73℃, iqondo lokubila: 200℃.
ISICELO:
1.I-asidi ye-phosphorusIsetyenziselwa ukuvelisa ityuwa ye-phosphate yesichumiso efana ne-potassium phosphite, i-ammonium phosphite kunye ne-calcium phosphite. Ibandakanyeka kakhulu ekulungiseleleni ii-phosphites ezifana ne-aminotris (i-methylenephosphonic acid) (ATMP), i-1-hydroxyethane 1,1-diphosphonic acid (HEDP) kunye ne-2-phosphonobutane-1,2,4-tricarboxylic Acid (PBTC), ezisetyenziswa kunyango lwamanzi njengesikali okanye i-corrosive inhibitor. Ikwasetyenziswa kwiimpendulo zamakhemikhali njenge-reducing agent. Ityuwa yayo, i-lead phosphite isetyenziswa njenge-PVC stabilizer. Ikwasetyenziswa njengesandulela ekulungiseleleni i-phosphine kwaye njenge-intermediate ekulungiseleleni ezinye ii-phosphorus compounds.
2.I-asidi ye-phosphorus(I-H3PO3, i-orthophosphorous acid) ingasetyenziswa njengenye yeenxalenye zempendulo yokwenza oku kulandelayo:
ii-α-aminomethylphosphonic acids nge-Mannich-Type Multicomponent Reaction
I-1-aminoalkanephosphonic acids nge-amidoalkylation elandelwa yi-hydrolysis
Ii-α-aminophosphonic acids ezikhuselweyo yi-N (ii-phospho-isosteres ze-amino acids zendalo) nge-amidoalkylation reaction
3. Ukusetyenziswa kwemizi-mveliso: Lo mqokeleli uphuhliswe kutshanje kwaye usetyenziswe kakhulu njengomqokeleli othile we-cassiterite evela kwiintsimbi ezidityanisiweyo ezine-gangue complex. Ngokusekelwe kwi-phosphonic acid, u-Albright noWilson baphuhlise uluhlu lwabaqokeleli ikakhulu ukuze bajikeleze iiminerali ze-oxidic (oko kukuthi i-cassiterite, i-ilmenite kunye ne-pyrochlore). Kuncinci okwaziwayo malunga nokusebenza kwaba baqokeleli. Izifundo ezincinci ezenziwe nge-cassiterite kunye ne-rutile ores zibonise ukuba abanye baba baqokeleli bavelisa ulwelo olukhulu kodwa babekhetha kakhulu.
Indlela yokuvelisa:
Iindlela zokuvelisa imveliso yemizi-mveliso ziquka i-trichloric phosphorus kunye netyuwa ye-phosphoric acid. Indlela ye-hydrolysis yongeza amanzi kancinci kancinci kwi-hydrolysis reaction phantsi komxube we-trichloride ukuvelisa i-sub-phosphoric acid. Emva kokucocwa, i-ChemicalBook ebandayo, kwenziwa i-crystallization kunye ne-discolor, kwaye imveliso egqityiweyo yenziwa. I-PCI3+3H2O → H3PO3+3HCL yayo ivelisa i-hydrogen chloride recycling ngexesha lenkqubo yokuvelisa, enokwenziwa ibe yi-hydrochloric acid.
Ukhuseleko:
Iimpawu zomngcipheko wokutsha: kwi-H hole agent evuthayo; Ubushushu bubolisa umsi onetyhefu we-phosphorus oxide.
Iimpawu zokugcina nezokuthutha: umoya ophuma kwindawo yokugcina impahla, obushushu obuphantsi, owomileyo; Gcina ngokwahlukileyo kwi-H pore-releasing agent kunye ne-alkali.
Ukupakisha: 25kg/Ibhegi
Indawo yokugcina: Gcina kwindawo evaliweyo, enganyangekiyo ekukhanyeni, kwaye ukhusele ekufumeni.
Ixesha leposi: Februwari-27-2023