High Purity pharmaceutical intermediates Mtengo wotsika Hypophosphorous acid CAS 6303-21-5

Zogulitsa

Malo osungunuka -25 ° C
Malo otentha 108 °C (759.8513 mmHg)
kachulukidwe 1.206 g/mL pa 20 °C(lit.)
kuthamanga kwa nthunzi <17 mmHg (20 °C)
kutentha kutentha.palibe zoletsa.
pka pK1 1.1.
kupanga makhiristo a hygroscopic kapena madzi amafuta opanda mtundu
colorless
Kusungunuka kwamadzi SOLUBLE

zina

Hypophosphorous acid ndi wothandizira kuchepetsa.Mphamvu ya monobasic acid.The amadzimadzi njira ndi acidic ndipo pang'onopang'ono oxidize mu mpweya kutentha firiji.Kulumikizana ndi H pore kupanga wothandizira kungayambitse kuyaka.Kuwotcha chifukwa cha kukhudzidwa kwambiri ndi ma okosijeni.Mpweya wa phosphine, womwe ndi wapoizoni kwambiri chifukwa cha kuwonongeka kwakukulu kwa kutentha, ngakhale amaphulika.Zowononga.Hypophosphorous acid nthawi zambiri amawonjezeredwa ku zakumwa zoziziritsa kukhosi chifukwa samayamwa.Chifukwa chake ngoziyo ndi yaying'ono, koma asidi a Hypophosphorous okhala ndi ndende yamphamvu kwambiri amawononga m'mimba.Kutenthetsa asidi olimba mpaka 130-140 ℃ kumabweretsa kusagwirizana ndi kuwonongeka kukhala PH3 ndi H3PO4.

Hypophosphorous acid, yomwe imadziwikanso kuti "hypophosphite", mafuta opanda mtundu kapena kristalo wonyezimira, ndi chinthu chofunikira kwambiri pamakampani opanga mankhwala.Amagwiritsidwa ntchito ngati kuchepetsa wothandizila kwa electroless plating kuteteza kusinthika kwa phosphoric acid utomoni, komanso chothandizira ndi refrigerant kwa esterification anachita, makamaka kupanga mkulu-chiyero Sodium hypophosphite.Pali njira zambiri zokonzekera, zomwe njira zokonzekera zodziwika bwino m'makampani ndi njira ya ion exchange resin ndi Electrodialysis.

Ntchito

1. Hypophosphorous acid imagwiritsidwa ntchito ngati chochepetsera pakupanga kwa electroless;
2. Ikhoza kugwiritsidwa ntchito kuteteza kusinthika kwa utomoni wa phosphoric acid;
3. Amagwiritsidwa ntchito ngati chothandizira esterification, refrigerant;
4. Amagwiritsidwa ntchito popanga hypophosphite, mchere wa sodium, mchere wa manganese, mchere wachitsulo amagwiritsidwa ntchito ngati zinthu zopatsa thanzi;
5. Hypophosphorous asidi ntchito mankhwala ndi kuchepetsa wothandizila, kutsimikiza arsenic, tellurium ndi kulekana kwa tantalum, niobium ndi reagents ena.
6. Ndi mphamvu yochepetsera, Ikhoza kugwiritsidwa ntchito pokonzekera sodium hypophosphite, calcium phosphate ndi hypophosphite ina.
7. Itha kugwiritsidwa ntchito posamba plating.Mankhwala.kuchepetsa wothandizira.general reagents.
8. Ndi mphamvu yochepetsera, ingagwiritsidwe ntchito popanga sodium hypophosphite, calcium phosphate ndi hypophosphite ina.
9. Izi zimagwiritsidwa ntchito kwambiri ngati kuchepetsa, Ag, Cu, Ni, Hg ndi zitsulo zina zimachepetsedwa kukhala zitsulo zofanana, kuti zitsimikizidwe za As, Nb, Ta a.