Mr.P
oud<3er
The recipes I shared assume either 100% concentration or at least the same concentration of all materials.
It definitely gets a little bit challenging and becomes a situation where a spreadsheet comes in handy when you are not able to start with materials all at the same concentration.
The most basic way to handle it is to add more in proportion to the dilution. So if everything is at 100% except your benzoin is at 20% (1/5 strength) then you need to add 5x as much of your dilute benzoin to get the same total amount of benzoin into the mixture.
Of course you've now added a whole bunch of whatever the benzoin is diluted in, so that just becomes something that you have to remember is in there if it's important for you to know the exact concentration of everything in the end.
You may run into some issues as far as compatibility of whatever diluents are used for your diluted stock. Ideally, everything would be diluted in the same solvent...
This may not be practical but an alternative approach: I just buy everything at 100% and dilute them all to the same ratio* in the same solvent, ethyl alcohol in my case, and then it becomes super easy to mix things up.
* some materials are so potent that I deliberately dilute them 10 - 1000 times more than others but those are exceptions and it's done deliberately to control their impact
It definitely gets a little bit challenging and becomes a situation where a spreadsheet comes in handy when you are not able to start with materials all at the same concentration.
The most basic way to handle it is to add more in proportion to the dilution. So if everything is at 100% except your benzoin is at 20% (1/5 strength) then you need to add 5x as much of your dilute benzoin to get the same total amount of benzoin into the mixture.
Of course you've now added a whole bunch of whatever the benzoin is diluted in, so that just becomes something that you have to remember is in there if it's important for you to know the exact concentration of everything in the end.
You may run into some issues as far as compatibility of whatever diluents are used for your diluted stock. Ideally, everything would be diluted in the same solvent...
This may not be practical but an alternative approach: I just buy everything at 100% and dilute them all to the same ratio* in the same solvent, ethyl alcohol in my case, and then it becomes super easy to mix things up.
* some materials are so potent that I deliberately dilute them 10 - 1000 times more than others but those are exceptions and it's done deliberately to control their impact
