Using flashpoint information

[rainycityjen]

Can someone knowledgeable speak to whether a fragrance oil's flashpoint can be used as a proxy for scent strength? I know there are other factors -- aromatic volatility came up in a thread I found.

I ask because I was browsing Save on Scents today, and I'm suspicious of the 3 different concentrations they offer. Seems like a racket. I'd like to determine what the actual concentration jump is between Standard, Ultra, and Extreme based on FP.

As an example, here's Key Note Cardamom: http://www.saveonscents.com/product_info.php/products_id/202755#!tab4

You can see the Standard concentration FP is 200°, the Ultra FP is 198°, and the Extreme FP is 167°. Doesn't seem like the Ultra is much more concentrated than Standard using that info alone.

 

[DeeAnna]

I'm not sure you can do that without a lot more information.

Flash point is not necessarily a linear relationship with the % of some material in a given mixture. For example, here's a chart of the flashpoint of ethanol (EtOH) in various water mixtures. You can see it's an odd curve. In a given region where the curve straightens out -- between 10% and 20% EtOH or between 40% and 70% EtOH, you might be able to correlate FP with the concentration of EtOH in the mix. Once you go outside that specific region, the correlation no longer works.

I would think the same would be true about the SoS fragrance blends. You'd really need a chart or table with the correlation between fragrance % and FP to make any kind of informed decision.