Phosphorous Acid，se tuufaatasiga inorganic ma le fua faatatau kemikolo H3PO3.O se pa'epa'e tioata pa'epa'e, faigofie solu i le vai ma ethanol, ma fa'agesegese oxidized i orthophosphate i le ea.O le Phosphite o le dibasic acid, o lona acidity e sili atu le malosi nai lo le phosphoric acid, o loʻo i ai le malosi faʻaitiitia o meatotino, faigofie ona faʻaitiitia ions siliva (Ag +) i le uamea siliva (Ag), e mafai ona faʻaitiitia ai le sulfuric acid i le sulfur dioxide.E malosi hygroscopicity ma deliviousness, ma e pala.Phosphite e masani ona faʻaaogaina e avea ma sui faʻaitiitia, sui faʻamalamalamaina o le nailoni, ae faʻaaogaina foi e pei o mea faʻapitoa phosphite, vailaʻau faʻamaʻi ma vailaʻau faʻamaʻi vai phosphorus oona mea mata.
Meatotino:pa'u tioata pa'epa'e.Solu i le vai ma le ava malosi. Density: 1.651g/cm3, mea liusuavai: 73℃, mea fa'apuna: 200℃.
FAATONUGA:
1.Phosphorous acide fa'aaogaina e gaosia ai le fetilaisa phosphate masima e pei o le potassium phosphite, ammonium phosphite ma le calcium phosphite.O loʻo aʻafia malosi i le sauniuniga o phosphites e pei o aminotris (methylenephosphonic acid) (ATMP), 1-hydroxyethane 1,1-diphosphonic acid (HEDP) ma le 2-phosphonobutane-1,2,4-tricarboxylic Acid (PBTC), lea e maua. fa'aoga ile vai vai e fai ma fua po'o se fa'ato'a pala.E fa'aaogaina fo'i i vaila'au fa'ainisinia e fai ma sui fa'aitiitia.O lona masima, taʻitaʻi phosphite e faʻaaogaina e avea ma PVC stabilizer.E faʻaaogaina foʻi e avea o se mea muamua i le sauniuniga o le phosphine ma o se mea faʻapitoa i le sauniuniga o isi mea faʻapipiʻi phosphorus.
2.Phosphorous acid(H3PO3, orthophosphorous acid) e mafai ona faʻaaogaina e avea o se tasi o vaega tali mo le tuʻufaʻatasia o mea nei:
α-aminomethylphosphonic acids e ala i le Mannich-Type Multicomponent Reaction
1-aminoalkanephosphonic acids e ala i le amidoalkylation sosoo ai ma le hydrolysis
N-puipuia α-aminophosphonic acids (phospho-isosteres of natural amino acids) e ala i le tali amidoalkylation
3. Fa'aoga fa'apisinisi: O lenei aoina na fa'atupuina talu ai nei ma sa fa'aaoga muamua e pei o le aoina fa'apitoa mo cassiterite mai ores ma fa'alavelave gague composition. I luga o le fa'avae o le phosphonic acid, Albright ma Wilson na fa'atupuina le tele o aoina e masani lava mo le fa'afefe o minerale oxidic ( ie cassiterite, ilmenite ma pyrochlore).E itiiti lava se mea e iloa e uiga i le faatinoga o nei tagata aoina.O su'esu'ega fa'atapula'a na fa'atinoina i le cassiterite ma le rutile ores na fa'aalia ai o nisi o nei tagata aoina e maua mai ai le fue tele ae sa matua filifilia lava.
Gaosiga auala:
O auala gaosi oloa e aofia ai le trichloroic phosphorus ma le phosphoric acid masima.Ole auala ole hydrolysis e fa'aopoopo lemu ai le vai ile fa'agaioiga ole hydrolysis i lalo ole fa'afefiloi ole trichloride e fa'atupu ai le sub-phosphoric acid.Ina ua uma ona faamamaina, malulu ChemicalBook, le crystallization ma discoloration ua faia, ma ua faia le oloa maeʻa.O lona PCI3 + 3H2O → H3PO3 + 3HCL e maua ai le faʻaaogaina o le hydrogen chloride i le faagasologa o le gaosiga, lea e mafai ona faia i le hydrochloric acid.
Puipuiga:
Uiga tulaga lamatia mu: i H hole agent mu;O le vevela e fa'apala le asu oona o le phosphorus oxide.
Teuina ma felauaiga uiga: faleteuoloa ventilation maualalo vevela mago;Teu ese ese mai le H pore-releasing agent ma alkali.
afifiina: 25kg/Pe
Teuina: Fa'asao i totonu o tapuni lelei, fa'amalama, ma puipuia mai le susu.
Taimi meli: Feb-27-2023