@sven, thanks for that. I was thinking of doing away with the gum but needed an extra push to do it. I’m grateful. @ngarayeva001 i have decided to do away with the gum, then I am going to try another experiment tomorrow with less sodium chloride. And yes its %w/w. @Fekher, thank you for your feedback. I heard about the same but i havent come across any publications to prove how unsafe it is to use DEA compounds.