Buying ingredients around town?

[zoiDman]

BTW - Here is a COA for ChemWorld's Kosher 99.7% Anhydrous VG

http://www.chemworld.com/v/vspfiles/assets/images/glycerin 99.7 c of a - 02132-ea(2).pdf

 

[zoiDman]

BTW2 - Just something to Note. The 99.7% Anhydrous is done by Weight and Not by Volume.

And VG has a Mass of about 1.261 g/cm3

 

[Geoffrey White]

This is the COA for Essential Depot's Glycerin:
http://www.essentialdepot.com/msds/coa glycerin kosher food.pdf

It shows a 99.84% purity, with 0.04% water, "contamination."

Correct me if I'm wrong, but doesn't that mean the other 0.16% aren't glycerin, or water, and are therefore impurities?

I don't mean to argue - I'm just fairly certain that minimum 99.7% glycerin means minimum 99.7% purity, with the rest being both water, and other impurities, not quite the way you were stating it...

Not that I'd be at all worried about the other 0.16% as that's prolly just whatever was in the air of the room it was packaged in being pulled in to the glycerin as it pulls some water in from the air (so, it's all very likely safe to breathe, as it's the air that the staff were breathing anyway).

 

[Geoffrey White]

As a note, I think saying, "99.7% Anhydrous Glycerin," is just a ploy/gimmick, to be honest...

There is certainly some truth to it, but it seems more likely to be a cop-out when they're using it to describe the product (trying to make you believe the other 0.3% is all water, when it simply isn't, trying to fool you by the wording).

I mean, it's not technically incorrect to say, "99% Anhydrous Glycerin," even if I know for a fact what I'm selling has 0.05% ethanol in it (although, as far as I'm aware, ethanol isn't very likely to wind up in any glycerin, anyhow). lol

 

[zoiDman]

This is the COA for Essential Depot's Glycerin:
http://www.essentialdepot.com/msds/coa glycerin kosher food.pdf

It shows a 99.84% purity, with 0.04% water, "contamination."

Correct me if I'm wrong, but doesn't that mean the other 0.16% aren't glycerin, or water, and are therefore impurities?

I don't mean to argue - I'm just fairly certain that minimum 99.7% glycerin means minimum 99.7% purity, with the rest being both water, and other impurities, not quite the way you were stating it...

Not that I'd be at all worried about the other 0.16% as that's prolly just whatever was in the air of the room it was packaged in being pulled in to the glycerin as it pulls some water in from the air (so, it's all very likely safe to breathe, as it's the air that the staff were breathing anyway).

From the COA you linked to, the Percentage that is Not Glycerin or Water would be .12% and Not .16%. But I understand what you are Saying. Yes, this .12% could be called an Impurity/Impurities/

But Once again, a Lot of this Gets down to How one defines an "Impurity". If I want "Pure", 100% Glycerin, Anything that is Not Glycerin can be considered an Impurity.

That Impurity could be an Alcohol. Or that Impurity could be Methyl Ethyl Ketone.

Having .12% Alcohol or in VG is Not a Problem. But Having MEK would be a Huge Problem. And that is Why a Purity Percentage is Not a very good way to Describe something you are going to put into your Body. It Doesn't Describe what the Impurity Is.

And that is Why I mentioned that People should Only buy USP VG. Because the USP VG Standard includes the Allowable Level of things like Heavy Metal and Toxins which are considered Safe for Human Consumption.

 

[zoiDman]

As a note, I think saying, "99.7% Anhydrous Glycerin," is just a ploy/gimmick, to be honest...

There is certainly some truth to it, but it seems more likely to be a cop-out when they're using it to describe the product (trying to make you believe the other 0.3% is all water, when it simply isn't, trying to fool you by the wording).

I mean, it's not technically incorrect to say, "99% Anhydrous Glycerin," even if I know for a fact what I'm selling has 0.05% ethanol in it (although, as far as I'm aware, ethanol isn't very likely to wind up in any glycerin, anyhow). lol

Anhydrous Levels are Not Gimmicks just because they Might not be Applicable for what a person doing DIY wants to do.

Glycerin is used for Many Things beside making e-liquids. And there are Times when you must Control the Amount of Water in a Solution or in a Chemical Reaction.

 

[Geoffrey White]

Anhydrous Levels are Not Gimmicks just because they Might not be Applicable for what a person doing DIY wants to do.

Glycerin is used for Many Things beside making e-liquids. And there are Times when you must Control the Amount of Water in a Solution or in a Chemical Reaction.

I suppose you're right when we look at it from a non-vaping standpoint - please excuse my tunnel-vision.

I was being a bit too reactionary to what you said earlier, and jumping to conclusions, I suppose...

I believe that the USP Standard guidelines what the Remaining Percentage can be. And in the Case of VG, I believe that it Is Water.

 

[Geoffrey White]

From the COA you linked to, the Percentage that is Not Glycerin or Water would be .12% and Not .16%. But I understand what you are Saying. Yes, this .12% could be called an Impurity/Impurities/

But Once again, a Lot of this Gets down to How one defines an "Impurity". If I want "Pure", 100% Glycerin, Anything that is Not Glycerin can be considered an Impurity.

That Impurity could be an Alcohol. Or that Impurity could be Methyl Ethyl Ketone.

Having .12% Alcohol or in VG is Not a Problem. But Having MEK would be a Huge Problem. And that is Why a Purity Percentage is Not a very good way to Describe something you are going to put into your Body. It Doesn't Describe what the Impurity Is.

And that is Why I mentioned that People should Only Buy USP VG. Because the USP VG Standard includes the Allowable Level of things like Heavy Metal and Toxins which are considered Safe for Human Consumption.

I'm sorry about the maths - I, yet again, have pulled an all-nighter, so my brain doesn't seem to be functioning at full capacity. lol

I'll level with you, though... I'm pretty sure the 0.12% is mostly harmless - partially for the reason I stated earlier, and partially because it's such a small amount, in a solution that is inhaled in relatively small amounts.

 

[Geoffrey White]

So, Dow Optim seems to be the best glycerin to use for e-liquids, but based on this webpage, I'm guessing they don't like that fact:
E-Cigarettes and How They Work - The Dow Chemical Company