I just started using 1% ppo citric acid to reduce the likelihood of soap scum and rancidity. Of course, since 10g citric acid neutralizes 6g of NaOH, I counteract this addition of citric acid with an excess of NaOH.
My impression is that many soapers use 1 to 2% citric acid for bars as a...
When it comes to using chelating agents, what are your preferences? I know some use EDTA others Sodium Citrate. Are there others you prefer to use? Also, why do you prefer one over the other?
I have been using Citric Acid and Sodium Hydroxide to make my own Sodium Citrate.