> >
<<
>>
<< >>

6 . , , 1400 . (, ),

. 0.7. .

. 0.8. . NaOH NaOH .

; . , .

, , . . , . . . 7 . 8.

. [25] Lee W. in ElectrometricMethods, ed. Browning D. R., McGraw-Hill, 1969.

<< >>