-
making solutions
Making solutions sometimes causes me problems.
For instance, adding citric acid and sodium benzoate to water. Which should be dissolved first? And when you have several different ingedients? I had a problem last week when I made a citric acid solution and then tried to add sodium benzoate, the benzoate refused to dissolve and floated around on top like some insoluble substance.
I wish there were some kind of chart that shows the order in which to put things in solution. -
8 Replies
-
It is a matter of chemistry CA first makes solution acid in which sodium benzoate as benzoic acid is insoluble.
-
So you’re suggesting it will be more successful to dissolve the benzoate first? Or to make a separate solution for each ingredient and mix them all together?
-
in this case separate solutions would be the better option: even if you dissolve the sodium benzoate first, it’ll precipitate and eventually crystallise out
-
Aha. I guess this implies … something I recall about ionic charge values or valence electrons or whatever. Hmm. More phases.
-
You can add the SB at the end of the process after you adjust PH with CA.
-
OK thanks.
-
@DRBOB@VERDIENT.BIZ
You can add the SB at the end of the process after you adjust PH with CA.This is also how I do it with potassium sorbate, I expected precipitation problems with it because of its formation to sorbic acid in the acidic CA environment, as the sorbic acid also is only slightly water soluble.
-
Doreen81 You are right as it seems like this is the best way to handle these types of preservatives:also they remain very stable and functional with time.
Log in to reply.