Anise is used as a scent for hounds to follow in various sports. We lay the scent by squirting a few drops of the mixture every ten steps on the surrounding biosphere. A small amount of anise oil is added to vegetable oil as a vehicle. The vegetable oil is a good solvent for the anise oil and helps it stick to the plant life. This formulation has remained constant through the year but the hounds seem to be able to scent better in warmer weather. It is my contention that in cooler weather the anise oil is less volatile resulting in a lower vapor density making it less sniffable by the hounds. If our formulation is optimal for 70 degrees F, how much more anise should we add so that density of anise in the air will be the same at 35 degrees F? Any help would be appreciated. By the way, I don’t want references to text books or tables but an answer such as add 5 times as much anise at 35 degrees.
Thanks for your help
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