Hi ppl, i am new here. nice to know u. i am doing a small project for my study. i would like to ask some question from experts.

1. why magnesol is used for dry washing? why not activated carbon, silica gel and zeolite?

2. how to convert the free glycerin content (g/L) to % in weight?

i have searched everywhere but no results so far. please help as much as possible. thank you so much in advance