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Soap Making Forum > The Soap Making & Craft Forum > Lye-Based Soap Forum > Help with Citric Acid Math! Please!
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Old 10-16-2017, 09:19 PM   #11
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Calculation looks right. I've only tried 0.5% citric before, let me know how the 2% goes.

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Old 10-19-2017, 12:39 AM   #12
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Many people use citric acid in the 2% range. There aren't any "here be dragons" problems to worry about. I think Carolyn (cmzaha) has used it at 3%, but if I recall correctly she says it can crystallize out on the surface of the soap at that dosage. But anything less than that is fine.

At 0.5% the sodium citrate is protecting your soap against rancidity (DOS, dreaded orange spots) caused by metal ions, but that probably isn't enough to prevent soap scum unless your water is very very soft. A dose of 2% to 3% will be more effective against soap scum as well as rancidity.

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