Flavoring solubility in PG data

[PastAnalogUser]

I am a new DIY e-liquid mixer but very scientifically capable...

Found this link that is of key interest for understanding the solubility of various flavors in PG ( Propylene Glycol )

I care about Anise Oil and Clove Oil solubility. Wish I could post this to DIY e-liquid Forum as it would be useful to others.

Dow Answer Center

Inline table below:

Solubility of Flavoring Materials in Propylene Glycol USP/EP - Water Mixtures at 25° C*

Percentage Propylene Glycol Solubility in ml per liter of Solvent
% PG in H2O
100%
80%
60%
40%
20%
Flavoring





Alcohol C-10
x
1
4.1
0.5
0.2
Alcohol C-12
x
10.1
1.2
<0.2
<0.2
Aldehyde C 16
x
22.5
0.8
0.5
0.4
Allyl Butyrate
353.9
80.7
18.1
7.4
3.9
Allyl Caproate
162.8
23.4
3.8
0.5
0.3
Amyl Acetate
x
x
x
18.2
15.5
Amyl Butyrate
142.4
23.9
4.9
2.0
0.6
Iso Amyl Formate
x
65.1
56.2
20.3
19.9
Amyl Valerianate
93.9
19.5
3.3
0.9
0.5
Anethol
54.9
6.9
2.7
0.4
<0.2
Benzaldehyde
x
232.8
47.5
18.1
7.8
Benzyl Acetate F.C.C.
x
83.9
19.9
4.1
2.7
Benzyl Propionate
x
41.3
8.0
2.4
1.1
Cinnamic Aldehyde (99-100% pure)
x
17.5
3.0
0.5
0.2
Citral
x
3.5
2.3
1.2
0.5
Diacetyl (100%)
x
x
x
x
209.0
Ethyl Butyrate
x
133.2
37.1
3.4
0.9
Ethyl Acetate
x
x
x
148.4
99.8
Ethyl Cinnamate
179.1
31.1
4.6
0.8
0.3
Ethyl Formate
x
x
x
x
234.1
Ethyl Oxyhydrate (Conc. Special Colorless)
x
x
x
x
34.8
Ethyl Valerate
298.7
86.6
27.4
8.3
8.1
Eucalyptol
278.5
55.8
19.7
4.5
3.4
Eugenol USP
x
-
383.8
1.2
0.5
Maltol
45.9
41.2
33.4
24.5
17.7
Methyl Anthranilate
x
240.2
32.3
4.4
3.5
Methyl Cyclopenteneolone
187.7
179.4
147.1
84.5
47.0
Methyl Salicylate
191.1
37.4
9.1
2.7
1.7
Nutmeg Oil
5.7
3.5
2.0
1.5
1.1
Ocotea Cymbarum
90.3
11.4
2.0
<0.2
<0.2
Oil Anise
29.7
6.2
2.0
0.5
0.2
Oil Bay
9.7
1.8
0.5
0.2
<0.2
Oil Bay (Terpeneless)
x
34.0
1.3
0.5
0.2
Oil Caraway
28.0
5.5
0.5
0.3
0.3
Oil Cassia
x
31.7
7.9
6.9
2.0
Oil Cassia (Terpeneless)
x
52.7
9.0
1.0
0.5
Oil Cloves
x
11.9
3.0
2.0
0.9
Oil Cloves (Terpeneless)
x
64.7
0.3
0.4
0.3
Oil Dill Weed
13.3
0.5
0.3
<0.2
<0.2
Oil Ginger
<0.2
-
-
-
-
Oil Lemon
9.8
6.1
3.7
2.2
0.4
Oil Lime (Distilled)
18.3
1.8
1.9
0.5
<0.2
Oil Mace (Distilled) (So Called)
12.5
3.3
0.5
0.3
0.2
Oil Peppermint
x
3.1
0.5
0.2
<0.2
Oil Peppermint (Terpeneless)
x
5.6
0.5
0.3
0.3
Oil Petitgrain (Terpeneless)
<0.2
7.6
1.3
0.5
0.2
Oil Pimento Leaf
x
9.7
1.6
0.6
0.3
Oil Sage (Spanish)
18.9
2.2
1.1
0.5
0.2
Oil Sassafras
19.5
12.2
2.0
1.2
0.8
Oil Spearmint (N.F XV)
8.3
0.5
0.4
0.2
0.2
Oil Thyme, White (High Test)
x
10.5
2.4
0.8
<0.2
Oil Wormseed (American Chenopodium)
105.0
8.3
1.2
0.5
0.3
Oil Resin Celery
1.2
0.4
<0.2
<0.2
<0.2
Oil Resin Ginger
Immisc.
-
-
-
-
Oil Resin Pepper
Immisc.
-
-
-
-
Orange Oil
1.6
1.6
1.0
0.7
0.4
Phenethyl Alcohol
x
x
x
240.2
32.0
Phenethyl Formate
204.4
34.9
5.5
1.4
0.3
Phenethyl Propionate
x
66.7
9.4
3.3
2.0
*The solubilities of over 100 additional essential oils and aromatic chemicals are listed in D.D, Lakritz, American Perfumer 48, No 11,64,69 (1946)
x = Miscible or soluble in all proportions
Immisc.= Immiscible or completely insoluble
< = less than

 

[Hoosier]

Interesting.

So, are you using individual components like these or other flavoring?

 

[PastAnalogUser]

When trying to come up with a strong licorice juice recipie I noticed I could not get anise oil to dissolve. I followed several guide posted here suggesting alcohol or vodka addition. Cant get everclear here so used vodka and made it worse. Using this guide I limited anise oil to 3% in pure PG. Worked like a charm, clear as water fully mixed. This guide indicates that any water in the PG makes the anise oil much less miscible.

By the way the table is much more readable at the link....

My 4th iteration on this Recipe
7% Licorice
3% Anise oil
2% Menthol dissolved in minimal amount of vodka
0.2% Clove oil
50% PV 54mg
39.9% PV

I have some Eppendorf micro Pipettes that allow me to mix in microliter increments which really help's

 

[Java_Az]

Might try looking for golden grain it is pretty much the same as everclear @ 190 proof or 95%. Other then that i think the closest thing might be 151 Bacardi. Oil can be tough to mix. Also have to go light on them or they can fry up atomizers.

 

[Hoosier]

Heh, like that recipe. Reads like it would have a good TH and leave a tingly feeling behind.

I'd probably sweeten it up, but I like my licorice more candy like than tea like. But, adding ethyl maltol would smooth it out some and might take that kick out that looks interesting.

I did a mix with anise oil and ethyl maltol that tasted like Good n Plenty candies. Good back when my tongue was still healing up from smoking, but it is too strong for me now.

Why don't you post a few more times and join us in the DIY Eliquid thread? Just say hi to some fellow newbies or share a few more recipes.

BTW: Welcome to ECF.

 

[Theophage]

It's inspiring to see this aspect of vaping approached with competence.
So far, I've been giving more thought to electric and thermodynamic issues.
The zillion possible flavour combinations are just waiting to be investigated.
I've already decided not to try Denatonium Bromide in DMSO, however.