Its much easier to simply buy caffeine-free drinks to begin with.
But, if you already have caffeinated drinks and wish to separate the caffeine, it can be done pretty easily.
If you are trying to isolate the caffeine from the drinks, you can perform an organic chemistry "Base / Acid, Liquid-Liquid extraction."
In a nutshell, it would go like:
1-Iincrease the pH of the soft drink to 11 or 12 (check for caffeine specifically)
2- Add a non-polar solvent and mix thoroughly for several minutes
3- Let the mixture sit for several minutes/hours, it should form two layers
Usually the bottom layer will be the "water" layer, while the upper layer will be the non-polar solvent containing your caffeine. Some non-polar solvents are heavier than water (like chloroform), and will form the bottom layer.
4- Separate the two layers, keep your non-polar layer with the caffeine.
5- Add a dilute strong acid like hydrochloric acid--or even vinegar (acetic acid), to the non-polar layer and shake for several minutes.
6- Let the mixtures stand for several minutes until two layers form again.
7- The caffeine will now be in your aqueous layer (the water layer). Again, this is typically the lower layer. Separate the layers, keep the water layer.
From here, you can do several things, you could:
A) Let the water evaporate, and it should leave caffeine as a goo or crystal substance at the bottom
B) You could again increase the pH in the water layer to 10 or 11. Let sit in your fridge and caffeine base should precipitate (fall out of solution).
It will remains red because soft drinks is acid
No. Soft drinks are acidic as they contain carbonic acid and often phosphoric acid.
It is because the sample which is soft drinks and coffee is decaffeinated by extraction with a chlorinated solvent and the polarity of this material looks similar..
Citrus-flavored soft drinks.
add vinegar
i think people add caffeine too soft drinks to make it more addicting.
caffeine
Caffeine is a stimulant that can cause an elevated heart rate and increases alertness. Cola soft drinks that are decaffeinated do not have any caffeine added to them.
caffeine
because of all the caffeine and sugar that is in them
Caffeine is found naturally in coffee, tea, and chocolate. Colas and some other soft drinks contain it.
Depends on the kind of beverage - tea or coffee-based drinks typically have naturally-occurring caffeine (unless specifically decaffeinated).
Mountain dew
caffeine
caffeine
Coffee...tea...chocolate and many soft drinks such as Coke and Mountain Dew. some aspirins contain caffeine too
Many soft drinks contain caffeine some examples are Coca Cola, Pepsi Cola and Mountain Dew. "Energy" drinks also contain caffeine. Just read labels.