last year I prepared Simulation Body Liquid (SBL) with destiled water and chemicals in the table. It was stored in a glass bottle at dark and at room temperature. Now I need to use SBL, but I noticed a precipitate on the bottom and it does not completely dissolve after mixing. I am including pictures of the SBL
My question is - Can I use it or is the solution devalued? Is it possible to dissolve the precipitates in any way? I no longer have all the necessary chemicals, so I would like to use this prepared solution. I am not a chemist, so I have no knowledge of this issue.
Btw. I don't know if I chose the right section. If not, please move.
Thank you, have a nice day!