DIY Kitty Crack: ultra-potent catnip extract
introDIY Kitty Crack: ultra-potent catnip extract
At least two thirds of domestic cats "enjoy" the effects of Nepeta,
a.k.a. "catnip." But do they enjoy it enough? If humans
were able to isolate the active ingredient in catnip, could we not use
it to become omnipowerful CATGODS? Imagine the possibilities! What
fool wouldn't want their own personal cat army? A massive fuzzy force
with which to execute your every bidding? A united, unquestioning
militia that requires nothing other than unfettered access to the
super-powerful catnip products that give their adorable cuddly lives meaning?
Nepetalactone is the active ingredient in catnip.* Today we are going to isolate nepetalactone in its pure form through a steam distillation. The distilled liquid will be extracted with an organic solvent (toluene), refined, then evaporated to give the final product.
Now I know what you're thinking: is it safe for cats to be around such a concentrated extract of catnip? Hell yes! Within reason. And we're all reasonable people. Pure nepetalactone has been studied on cats extensively. In fact, "catnip oil" that is available from botanical stores is essentially just nepetalactone, and it is widely used in homeopathic medicine. More details later.
Nepetalactone is the active ingredient in catnip.* Today we are going to isolate nepetalactone in its pure form through a steam distillation. The distilled liquid will be extracted with an organic solvent (toluene), refined, then evaporated to give the final product.
Now I know what you're thinking: is it safe for cats to be around such a concentrated extract of catnip? Hell yes! Within reason. And we're all reasonable people. Pure nepetalactone has been studied on cats extensively. In fact, "catnip oil" that is available from botanical stores is essentially just nepetalactone, and it is widely used in homeopathic medicine. More details later.
- Note: pure nepetalactone will not enable you to create a cat army.
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step 1crash course in steam distillation
If you've taken any chemistry laboratory classes, or if you have a background in moonshine production, then you know a thing or two about distillation. Heat something up to…

step 2obtain the necessary materials
Cat armies don't come free.* It's time to go shopping. Here's our list:-1 pound of catnip, available online for bargain basement prices. I paid $3.40/lb from the San Fran…

step 3prepare the steam distillation
To start, load up your pot with about a 1/3 lb of the catnip. Add enough watter to get everything wet, stirring it up. This might take 1/2 gallon of watter. Remove the stem…

step 4check the fit of the lid
Key to the success of this extraction is the properly assembly of your extraction apparatus. It's important that the handle of the glass lid be the right shape to facilitat…

step 5start distilling
Heat the pot up until the water starts boiling. Did I mention that you might want to do this outside? The catnip vapors don't smell bad, in fact it's a pleasant minty smell…

step 6collect the distillate
Once all the ice has melted, after 20 minutes or so, take off the lid and dump the water from the top (wear oven mitts for all of this). Take out the glass from the center …

step 7repeat steps 3 through 6
After replenishing the still with fresh water, repeat the distillation until you've collected another 100 mL of distillate (200 mL total). Then do it again; fresh water, fr…

step 8extract out the organic material
What you have on your hands is about 900 mL of catnip-smelling water, which contains a very small amount of nepetalactone. Catnip contains about 0.3% of this volatile oil b…

step 9separate the toluene layer
I bet you were wondering what the turkey baster was for, eh? Now is the time to put it to use. With a shot glass in one hand, turkey baster in the other, suck off the tolue…

step 10refine the toluene extracts
Now it's time to get a little more precise. Set aside the turkey baster and grab the eye dropper, which we will use from now on. As I said, the objective is to obtain a cle…

step 11dry the toluene solution
To get the last little bit of water and other insoluble junk out of the toluene, we're going to dry it and pass it through a filter. Add a small amount of table salt to the…

step 12filter off the salt
The last step in getting a clear toluene solution is to filter off the salt and other insoluble material. Cut a coffee filter into a circular disc about 4" in diameter. Fol…

step 13optional sodium bicarbonate wash
This step is optional but it's easy and will further increase the purity of your nepetalactone. When you steam distill catnip, one of the side reactions is that some of the…

step 14re-clarify the toluene
Ok, we're almost done! Repeat steps 11 and 12 on your toluene solution. That is, add a little table salt (or better yet, magnesium sulfate if you have it), stir it up reall…

step 15evaporate the toluene
Put the container with the highly-refined toluene extract outside, under a fan, to blow off all the toluene. Toluene vapors are not toxic but they are quite flammable, so k…

step 16admire your product
When all the toluene is gone and you can't smell it any more (it smells like rubber cement), you will be left with a tiny amount of greenish liquid in the bottom of your co…

step 17find a cat
Now it's time to build that cat army!* Find yourself a cat, uncap the vial, and let him/her get a good whiff. The effects are just the same as with catnip; immediately the…
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