Discussion in 'Lye-Based Soap Forum' started by BrewerGeorge, May 22, 2017.
What are the units for the numbers in the fatty acids section?
According to the help page - http://soapcalc.net/info/helptext.asp
Fatty Acids The approximate percentage of each fatty acid in the oil.
Yep, percentages by weight.
That was my first guess, but they don't add up to 100. I guess the balance would be other, unsaponifiable "stuff" then?
There are also other fatty acids that are not listed: caproic, caprylic, capric for example.
If you add in the other fatty acids that Soapcalc doesn't worry about, the total fatty acid content of many fats comes close to 100%. The unsaponifiable content of many of the common soaping fats is fairly low.
For example, some people think olive oil has a high % of unsaponifiable chemicals, but it honestly doesn't. Regular olive is 1.5% max according to standards and olive pomace must be no more than 3%. At 1.5%, regular olive has an unsaponifiable content comparable to other soaping fats such as corn, hemp, palm, canola, etc. It's avocado that wins the prize for a high unsaponifiable content -- somewhere between 4% and 9%.
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