High Purity Pharmaceutical Intermediates Tsawg tus nqi Hypophosphorous acid CAS 6303-21-5

Cov ntsiab lus ntawm cov khoom

Melting point -25 ° C
Kub taw tes 108 ° C (759.8513 mmHg)
ceev 1.206 g / mL ntawm 20 ° C (lit.)
vapor siab <17 mmHg (20 ° C)
cia temp.tsis muaj kev txwv.
npo pK1 1.1.
tsim hygroscopic crystals los yog tsis muaj xim oily kua
xim tsis muaj xim
Dej Solubility SOLUBLE

lwm yam

Hypophosphorous acid yog ib qho kev txo qis.Muaj zog monobasic acid.Cov tshuaj aqueous yog acidic thiab tuaj yeem maj mam oxidize hauv huab cua ntawm chav tsev kub.Kev sib cuag nrog H pore tus neeg sawv cev tuaj yeem ua rau combustion.Hlawv vim mob siab rau cov tshuaj tiv thaiv oxidants.Phosphine gas, uas yog tshuaj lom heev vim muaj thermal decomposition, txawm tawg.Corrosive.Hypophosphorous acid feem ntau ntxiv rau cov dej txias vim nws tsis nqus.Yog li qhov txaus ntshai yog me me, tab sis Hypophosphorous acid nrog lub zog muaj zog heev yuav ua rau lub plab zom mov.Cua sov cov kua qaub rau 130-140 ℃ ua rau disproportionation thiab decomposition rau PH3 thiab H3PO4.

Hypophosphorous acid, tseem hu ua "hypophosphite", tsis muaj xim oily los yog deliquescent crystal, yog ib yam khoom tseem ceeb ntawm kev lag luam tshuaj zoo.Nws yog tsuas yog siv los ua tus neeg sawv cev txo qis rau electroless plating los tiv thaiv cov xim ntawm phosphoric acid resin, nrog rau cov catalyst thiab refrigerant rau esterification cov tshuaj tiv thaiv, tshwj xeeb tshaj yog rau kev tsim cov high-purity Sodium hypophosphite.Muaj ntau txoj hauv kev npaj, ntawm cov txheej txheem kev npaj ntau hauv kev lag luam yog ion exchange resin method thiab Electrodialysis method.

Siv

1. Hypophosphorous acid yog siv los txo tus neeg sawv cev rau electroless plating;
2. Nws tuaj yeem siv los tiv thaiv cov xim ntawm phosphoric acid resin;
3. Nws yog siv los ua esterification catalyst, cov tub yees;
4. Nws yog siv los tsim cov tshuaj hypophosphite, sodium ntsev, manganese ntsev, hlau ntsev feem ntau yog siv los ua cov khoom noj;
5. Hypophosphorous acid yog siv nyob rau hauv cov tshuaj thiab raws li txo tus neeg sawv cev, kev txiav txim ntawm arsenic, tellurium thiab sib cais ntawm tantalum, niobium thiab lwm yam reagents.
6. Nws muaj zog txo tus neeg sawv cev, Nws tuaj yeem siv rau kev npaj ntawm sodium hypophosphite, calcium phosphate thiab lwm yam hypophosphite.
7. Nws tuaj yeem siv rau lub plating da dej.Pharmaceuticals.txo tus neeg sawv cev.general reagents.
8. Nws muaj zog txo tus neeg sawv cev, nws tuaj yeem siv ua sodium hypophosphite, calcium phosphate thiab lwm yam hypophosphite.
9. Cov khoom no yog dav siv los txo tus neeg sawv cev, Ag, Cu, Ni, Hg thiab lwm yam hlau raug txo rau cov hlau sib xws, rau kev txheeb xyuas ntawm As, Nb, Ta a