Cov kua qaub phosphorousIb qho tshuaj inorganic nrog cov tshuaj mis H3PO3. Nws yog ib qho hmoov dawb crystalline, yooj yim soluble hauv dej thiab ethanol, thiab maj mam oxidized rau hauv orthophosphate hauv huab cua. Phosphite yog dibasic acid, nws cov acidity yog me ntsis muaj zog dua li phosphoric acid, nws muaj zog txo qis, yooj yim txo cov nyiaj ions (Ag +) rau hauv cov hlau nyiaj (Ag), tuaj yeem txo cov sulfuric acid rau hauv sulfur dioxide. Nws muaj zog hygroscopicity thiab deliviousness, thiab yog corrosive. Phosphite feem ntau yog siv ua tus neeg sawv cev txo qis, nylon brightening agent, tab sis kuj siv ua cov khoom siv phosphite raw, tshuaj tua kab intermediates thiab cov organic phosphorus dej kho cov neeg sawv cev raw cov ntaub ntawv.
Cov Khoom:dawb crystalline hmoov. Yaj hauv dej thiab cawv. Qhov ceev: 1.651g / cm3, lub ntsiab lus yaj: 73 ℃, lub ntsiab lus kub: 200 ℃.
DAIM NTAWV THOV:
1.Cov kua qaub phosphoroussiv los tsim cov chiv phosphate ntsev xws li potassium phosphite, ammonium phosphite thiab calcium phosphite. Nws koom nrog kev npaj cov phosphites xws li aminotris (methylenephosphonic acid) (ATMP), 1-hydroxyethane 1,1-diphosphonic acid (HEDP) thiab 2-phosphonobutane-1,2,4-tricarboxylic Acid (PBTC), uas pom daim ntawv thov hauv kev kho dej ua tus nplai lossis corrosive inhibitor. Nws kuj siv rau hauv cov tshuaj tiv thaiv ua tus neeg sawv cev txo qis. Nws cov ntsev, lead phosphite siv ua PVC stabilizer. Nws kuj siv ua tus precursor hauv kev npaj phosphine thiab ua tus neeg nruab nrab hauv kev npaj lwm cov phosphorus compounds.
2.Cov kua qaub phosphorous(H3PO3, orthophosphorous acid) yuav siv tau ua ib qho ntawm cov khoom sib xyaw rau kev tsim cov hauv qab no:
α-aminomethylphosphonic acids ntawm Mannich-Type Multicomponent Reaction
1-aminoalkanephosphonic acids ntawm amidoalkylation ua raws li hydrolysis
N-tiv thaiv α-aminophosphonic acids (phospho-isosteres ntawm cov amino acids ntuj) ntawm amidoalkylation reaction
3. Kev siv rau hauv kev lag luam: Cov khoom siv no tau tsim tsis ntev los no thiab siv ua cov khoom siv tshwj xeeb rau cassiterite los ntawm cov ores uas muaj cov khoom sib xyaw ua ke. Raws li cov phosphonic acid, Albright thiab Wilson tau tsim ntau yam khoom siv rau kev ua kom cov oxidic minerals (piv txwv li cassiterite, ilmenite thiab pyrochlore). Muaj tsawg heev uas paub txog kev ua tau zoo ntawm cov khoom siv no. Kev tshawb fawb tsawg tsawg uas tau ua nrog cassiterite thiab rutile ores qhia tau tias qee cov khoom siv no tsim cov npuas loj tab sis xaiv tau zoo heev.
Txoj kev tsim khoom:
Cov txheej txheem tsim khoom lag luam suav nrog trichloroic phosphorus thiab phosphoric acid ntsev. Txoj kev hydrolysis maj mam ntxiv dej rau hauv cov tshuaj hydrolysis hauv qab kev sib xyaw ntawm trichloride los tsim cov kua qaub sub-phosphoric. Tom qab ua kom huv, txias ChemicalBook, cov crystallization thiab discoloration tau ua, thiab cov khoom tiav lawm tau ua. Nws PCI3 + 3H2O → H3PO3 + 3HCL tsim cov hydrogen chloride rov ua dua tshiab thaum lub sijhawm tsim khoom, uas tuaj yeem ua rau hauv hydrochloric acid.
Kev Ruaj Ntseg:
Cov yam ntxwv ntawm kev pheej hmoo ntawm kev kub hnyiab: hauv H qhov tus neeg sawv cev combustible; Kub decomposes lom phosphorus oxide pa phem.
Cov yam ntxwv ntawm kev khaws cia thiab kev thauj mus los: qhov cua hauv tsev rau khoom qhuav thiab kub qis; Khaws cia cais ntawm H2 pore-releasing agent thiab alkali.
Ntim: 25kg / Hnab
Kev Cia Khoom: Khaws cia rau hauv qhov kaw zoo, tiv taus lub teeb, thiab tiv thaiv kom tsis txhob noo noo.
Lub sijhawm tshaj tawm: Lub Ob Hlis-27-2023