Originally Posted by princeOK
I have benzoin siam 50% in mpg, oakmoss absolute, coumarin, menthol, calone all in powder or crystals and I think the oakmoss is in a very sticky texture. Do they all dilute in ethanol and if so, in what percentage and in what way do i measure them as they are in grams. I need to use them for creating perfume and experiment.
Yes those should all dilute successfully in ethanol . . . but not always easily. The benzoin siam at 50% in mpg should be easy enough to dilute further in ethanol as it is a fairly mobile liquid and does not take too long to dissolve. Aim for a 10% solution of benzoin, so if you have 2 grams of your benzoin siam at 50%, you’ll need to add 8 grams of ethanol to it, to get a solution which is 10% benzoin and you’ll have about 12.5ml of solution. Note that if you try to do that by volume you won’t get the same result.
The others are less easy and in all cases I would use an automatic stirrer. Anyway the dilution process is similar for oakmoss and coumarin I would aim for 10% so you need, for example 1 gram of coumarin and 9g of ethanol. You can’t do this without an accurate scale. With menthol and calone I would aim for a 1% solution because these are both strong materials that you don’t want to put too much of into your blend. So 0.1g of calone and 9.9g of ethanol will give you 10g (about 11.3ml in this case) of 1% solution.
Assuming that you don’t have an automatic stirrer you can use, I would make these up in a container that you can seal - a bottle with a polycone cap is ideal - and then shake them until you get a fully dissolved solution. With some of them you’ll need to keep going back to the bottle to shake it again repeatedly: you may find it easier to simply put the bottle in your pocket while you are busy doing other things and let your own movements keep the mixture moving until it is all dissolved.
Originally Posted by princeOK
Also, I have smelled hedione, cedryl methyl ether and lyral and to my surprise they have a very faint smell. Particularly lyral I can hardly smell it. Is that normal? Samples were from a respected seller. Is it possible my nose is not sensitive enough to these odours?
Thank you so much.
I don’t think you have a problem here either with your nose or your materials: all three have a faint scent when smelled directly. Cedramber
(cedryl methyl ether) is the most obvious of them and you should get a woody scent from it once you have it diluted to about 10%.Hedione
are both quite strange with only a very faint floral scent even when diluted (I keep those at 10% too). However what you’ll find is that they both have a dramatic effect when you put them into a blend: the hedione gives a brightness and diffusive, exalting quality when mixed with other florals, especially jasmines. You can use quite a lot of it.
Lyral is more subtle, giving a depth and florality to lots of blends - it adds a subtle Lilly of the Valley note if you use a lot of it or combine it with lilial and hydroxycitronellal but try putting just a little into almost any blend and see how it changes it. You’ll also find it has a fixative effect which is very useful. Note that the IFRA restriction for lyral is quite low - only 0.2% in the finished product - so you can’t put much into any blend you intend to sell.