@Jackie Tobey - I believe you can calculate a KOH sap from the NaOH sap and vice versa, but I haven’t done it. I bet the formula can be found on the Soapy Stuff website.
We have two pieces of hard evidence that GW415 is not super high in stearic acid. First, the higher the iodine value, the higher the percentage of unsaturated fatty acids in a bulk fat or purified fatty acid. The iodine value for stearic acid, a saturated fat, is 2 and the SMF calculator gives the iodine value of soybean (wax) as 1. This indicates that both have virtually no unsaturated fats. However, the iodine value for GW 415
from the manufacturer (in the Certificates of Analysis sheets posted on the Candle Science website, which I linked above), is approximately 50 (I averaged over many batches), which is close to lard (57), tallow (45), and palm (53). Second, we also know
from the manufacturer that GW 415 contains 44% saturated fats, whereas the SMF calculator give 98% saturated fats for soybean (wax) and then 24% saturated if 27.5% hydrogenated soybean oil is selected. Thus, neither of those options matches the manufacturer’s information for GW 415. Using the wax option gives you an over-estimate of the saturated fats, while using the 27.5% hydrogenated option give an underestimate of the saturated fats.
One of these days I’m going reach out to Akosoy to ask them if they would be willing to check/confirm what I’ve done. Until then, the NaOH SAP and FA profiles are my best estimates and others can use them if they feel comfortable with how I got there.