phillyza - 26-3-2014 at 05:20
Hi, Im new to the forum and dont know if this is the correct place to post.
Im doing NaCl electrolysis. Im starting out with approximately 1g/l salt solution which gives me 585 ppm chlorides when measured with the mohr silver
titration method.
Then activation takes places and Im producing Anolyte and Catholyte. Then I measure the Free Available Chlorine and the Chlorides in the Anolyte and I
get about 330ppm FAC and the residual chlorides is about 496 ppm with the Mohr titration.
This doesnt makes sense to me because I expected that starting chlorides - FAC = end chlorides, which is not the case. I expected that some of the
chlorides convert in chlorine components (FAC) and you just subtract the FAC from the starting chlorides to obtain end chlorides? In this example I
expected end chloride value in my Anolyte to be 255ppm (585 - 330). Any guidance on this?
Where have I got it wrong? Does the silver nitrate titration measures total Cl - meaning chlorides or chlorine components?