Pistacia terebinthus (turpentine tree oil) & bay laurel

happyprince · Apr 26, 2011

Hi,
I want to make soap with turpentine tree oil and bay laurel oil(kernel).
However I can nowhere find the essential information about the saponification value for both.Also help with the percentage of these oils in a batch would help me a lot.Here we have a lot of these oils both and I want to make soap out of them.
Any help will be highly appreciated.Thanks a lot...

Bubbles Galore · Apr 26, 2011

http://www.docstoc.com/docs/53792131/SAP-Values

Bay Laurel is 0.1420

http://www.historische-aleppo-seife.de/engl_story.html

http://www.alepposoap.com/presentation.html

happyprince · Apr 26, 2011

thank you so much

reinbeau · Apr 2, 2016

I know I'm necro posting, however, that docstock link doesn't work anymore. Does anyone have the SAP value for Pistacia Terebinthus Seed Oil? I would like to make Bittim soap. I have the oil. I don't have the SAP value.

topofmurrayhill · Apr 3, 2016

reinbeau said:
I know I'm necro posting, however, that docstock link doesn't work anymore. Does anyone have the SAP value for Pistacia Terebinthus Seed Oil? I would like to make Bittim soap. I have the oil. I don't have the SAP value.

Source 1:

Lauric(C12:0) 0.1 ± 0.02
Myristic(C14:0) 0.1 ± 0.03
Palmitic(C16:0) 21.3 ± 0.21
Palmitoleic(C16:1) 3.4 ± 0.10
Stearic(C18:0) 2.0 ± 0.32
Oleic(C18:1) 52.3 ± 0.17
Linoleic(C18:2) 19.7 ± 0.40
Linolenic(C18:3) 0.6 ± 0.01
Eicosanoic(C20:0) 0.1 ± 0.02
Eicosenoic(C20:1) 0.2 ± 0.03

Source 2:

Palmitic acid 24.2%
Palmitoleic acid 3.8%
Stearic acid 1.7%
Oleic acid 45.8%
Linoleic acid 23.9%
Linolenic acid 0.47%

Unsaponifiable matter, about 1%
Iodine value, about 85
SAP NaOH 0.137

I should mention that I took the SAP value from an old source. There are newer research papers, but all of them have at least one researcher in common and they get implausibly low SAP values. Sometimes they make no sense at all and are clearly just wrong.

Based on the composition of the oil I was thinking it should be at least 0.135. The newer sources got 0.132 as the maximum and sometimes a lot less. The older source had 0.137 and that just made sense.