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Tsev > Xov xwm > Ntsiab lus

Kuaj txhuas Sulfate

10% coj mus kuaj cov kua blending thiab cov aluminium ntsev (IT-2) thiab sulfates (IT-29) rau qhov xyaum ua tej yam yuav tsum zoo. Solubility soluble yooj yim nyob rau hauv dej, hauv ethanol insoluble. OT-42 txoj kev. 5% pH value aqueous 2.9 los yog saum toj noj, nrog ib khob electrode.

Tsom xam ntaub ntawv kawm: luj yog cov pawg 4g, muab 250ml volumetric khob haus dej, neej thiab tom qab tov nrog dej. 10ml txhuav cov kua rau 250ml beaker, ntxiv 0.05mol / L ntawm disodium EDTA (ethylene diamine tetraacetic disodium kua qaub ntsev) tov 25.0 ml thiab tsis pH (77.1 g 57 ml acetic acid thiab ammonium acetate thiab dej ntim rau 1000 ml) 4.5 20 ml, maj mam muab ib kub npau npau 5 min. Tom qab cov cua txias, txhab dej caw. 50ml thiab dithizone tshuaj (TS-94) 2 ml. Titration nrog 0.05mol / L zinc sulfate kua rau liab ploog, hos ib tug titration dawb paug. 0.05mol / L ib ml ntawm disodium EDTA (ethylene diamine tetraacetic kua qaub disodium) yog tshaj rau txhuas sulphate Al2 (SO4) 3 8.554 mg los yog sulfate uas muaj 16.66 mg.


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