CAS: 7758-79-4|N-(Isoxazol-5-yl)sulphanilamide

Cov txheej txheem tsim khoom muaj xws li disodium hydrogen phosphate neutralization method thiab soda tshauv neutralization txoj kev.

1. Disodium hydrogen phosphate thiab neutralization dej ntawm kaum ob disodium hydrogen phosphate los ntawm qhov sib piv ntawm 3: 2 ntxiv dej kom yaj, lim kom tshem tawm thiab ntxiv cov lim dej rau cov tshuaj tiv thaiv tsis zoo thiab cov tshuaj tiv thaiv neutralization hauv phosphate sib tov maj mam, pH tswj hauv 4.2 ~ 4.6, cov tshuaj tiv thaiv. daws los ntawm evaporating los ua cov zaj duab xis siv lead ua, qhov txias crystallization, centrifugal sib cais, ob dej sodium dihydrogen phosphate. Tom qab ziab ntawm 100 degree, anhydrous sodium dihydrogen phosphate tau npaj. Cov cawv niam tuaj yeem rov qab los rau disodium hydrogen phosphate dissolving.
2. Soda tshauv neutralization txoj kev: cov extracted phosphoric acid yog ntxiv rau hauv neutralization reactor, thiab cov dej qab zib tshauv yog maj mam ntxiv rau hauv cov tshuaj tiv thaiv neutralization nyob rau hauv stirring los tsim sodium dihydrogen phosphate, uas yog lim, evaporated thiab concentrated, txias rau 60 ~ 70 degree rau precipitate crystallization, thiab sib cais los ntawm centrifugation kom tau sodium dihydrogen phosphate dihydrate. Anhydrous sodium dihydrogen phosphate tau npaj los ntawm huab cua kom qhuav.

Specification of CAS: 7758-79-4|N-(Isoxazol-5-yl)sulphanilamide

Pob thiab kev thauj mus los ntawmCAS: 7758-79-4|N-(Isoxazol-5-yl)sulphanilamide

Pob: 1g, 10g, 25g 1kg

Kev thauj mus los: los ntawm courier / los ntawm huab cua / los ntawm hiav txwv