-
Oils - what do the specifications mean to me?
Whenever I get specification sheets for oils, I see acid value, saponification value, iodine value and (sometimes) Free Fatty Acid Content. I know technically what these measurements are, but what do they mean to me as a cosmetic chemist? Can anyone elaborate on FFA value?
Thanks! -
3 Replies
-
It doesn’t answer all your questions but here is some information you might find helpful about certificate of analysis tests.
Free Fatty Acid content is the amount of fatty acids in the formula that have been liberated from the natural occurring triglyceride molecule. See this for more information. http://www.hrpub.org/download/201310/cme.2013.010306.pdf -
Thank you, Perry, for taking me way back in time! I’d read this post before - but forgot about it when thinking about my current situation. I will be sure to refer to this in the future.
-
the free fatty acid content is indicative of how fresh the oil is; if it’s above the upper limit of the supplier’s spec, it’s been significantly degraded
Log in to reply.