[manprill_one]

Hi, I'm trying to understand the precipitation reaction between disulfiram (tetraethylthiuram disulfide) and Ag⁺.
This reaction is used by the European Pharmacopoeia for the precipitimetric titration of disulfiram. From the quantitative equivalence, it seems that the disulfiram:Ag⁺ stoichiometry is 1:5

I did some research; I found that Ag⁺ precipitates with disulfides with a disulfide:Ag⁺ 2:3 stoichiometry, and also found the explicit reaction. However, I don't know whether this is part of the disulfiram reaction or if the latter is completely different.

Is there anyone that can write/explain the disulfiram reaction and its stoichiometry?

Thanks!