Tsev > Xov xwm > Ntsiab lus

Potassiium Monopersulfate Assy Cov Kev Txiav Txim Siab

Aug 22, 2020

Cov ntsiab lus ntawm cov hau kev

Ua kom cov poov tshuaj persulfate compound sib xyaw ntsev rau hauv dej, ntxiv ntau cov KI tov, feem ntau rau qhov kawg nrog sodium thiosulfate txheem daws hauv cov kua qaub. Cov tshuaj tiv thaiv kab zauv yog raws li nram no:

Potassiium Monopersulfate main test formula equation

Reagents thiab cov kev daws:

5.4.2.1 cov kua qaub sulfuric acid (GB 625)

5.4.2.2 poov tshuaj iodide: tshuaj xyuas qhov tseeb;

5.4.2.3 hmoov txhuv nplej siab daws (Hg / T 2759): 5g / L;

5.4.2.4 sodium thiosulfate txheem daws (GB 637): txog 0.1mol / l.

5.4.3 cov kauj ruam kev txheeb xyuas

Qhov hnyav 0.4g coj mus kuaj, muaj tseeb rau 0.0002g, muab tso rau hauv iodine volumetric flask, ntxiv txog 60ml ntawm 1 + 3 sulfuric acid tov, ntxiv 2.5G poov tshuaj iodide, npog lub taub hau nres, ntim nrog dej, thiab qhov chaw tso hauv chav tsaus rau 10 feeb. Tom qab noj tawm, yaug sab hauv phab ntsa ntawm iodine ntsuas lub raj mis nrog ib qho dej me me, them ib feem nrog 0.1mol / l sodium thiosulfate cov kua txheem kom txog thaum nws hloov lub teeb daj, tom qab ntawd ntxiv txog 2ml hmoov txhuv nplej siab, thiab txuas ntxiv titration kom txog thaum tsis muaj xim thiab khaws cia unchanged rau 30 vib nas this.

Nyob rau tib lub sijhawm, kev sim dawb yuav tsum tau nqa tawm.

Qhov kev tshuaj ntsuam tau yog raws li nram no:

(1) Cov pa oxygen ntsiab lus yog xam los ntawm huab hwm coj feem pua ​​w1, thiab tus nqi yog qhia hauv%

Potassiium Monopersulfate active oxygen content test

(2) Cov ntsiab lus ntawm cov khoom xyaw nquag yog xam los ntawm huab hwm coj feem pua ​​w2, thiab tus nqi yog qhia hauv%

Potassiium Monopersulfate active ingredients determination test

(3) Cov ntsiab lus ntawm potassium monopersulfate compound (2KHSO5. KHSO4. K2SO4) yog xam los ntawm huab hwm coj feem pua ​​w3, thiab tus nqi yog qhia hauv%

Potassiium Monopersulfate compound equation test result

Hauv cov mis saum toj no:

C-- concentration ntawm sodium thiosulfate txheem daws, mol / L;

V-- ntim ntawm sodium thiosulfate txheem daws tau haus hauv titration, ml;

V0-- ntim ntawm sodium thiosulfate txheem daws tau noj hauv ib feem kaum, ml;

0.008-- sib npaug rau 1.00mL Na2S2O3 tus qauv daws teeb meem [C=0.1000mol / l], cov pa loj ntawm cov pa tawm tau qhia nyob hauv gram;

1053-- qhov hloov pauv hloov pauv qhov nquag ntawm cov pa ua nquag nquag rau KHSO5;

0.0521-- kev hloov pauv hloov coefficient ntawm kev ua pa oxygen rau poov tshuaj persulfate compound ntsev;

M-- coj los ntsuas loj, g.