Does anyone know if there is a correlation between flash points of fragrances and how well they stick in CP soaps?
Does flash point correlate to sticking in CP?
- Thread starter ScentimentallyYours
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Flash point isn't related to whether a particular fragrance evaporates a lot faster or slower than another. Water, which has no flash point, evaporates a LOT faster than all of the fragrance oils I've looked at.
Vapor pressure is a better predictor of evaporation rate, but the fragrances I looked at all have fairly similar (and very low) vapor pressures, so even vapor pressure won't do a good job of predicting whether a fragrance sticks well or not.
Flash point also can't predict whether a scent remains stable when exposed to soap or lye or whether the scent will weaken or change due to chemical changes when added to soap.
So to answer your question -- the flash point temperature does not predict a fragrance's ability to "stick" in soap. The only thing the flash point temp tells you is the temperature at which the chemical mixture will start to burn if exposed to flame.
Vapor pressure is a better predictor of evaporation rate, but the fragrances I looked at all have fairly similar (and very low) vapor pressures, so even vapor pressure won't do a good job of predicting whether a fragrance sticks well or not.
Flash point also can't predict whether a scent remains stable when exposed to soap or lye or whether the scent will weaken or change due to chemical changes when added to soap.
So to answer your question -- the flash point temperature does not predict a fragrance's ability to "stick" in soap. The only thing the flash point temp tells you is the temperature at which the chemical mixture will start to burn if exposed to flame.
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Thank you!
