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DIY Kitty Crack: ultra-potent catnip extract

intro
 

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.

  • Note: pure nepetalactone will not enable you to create a cat army.
DIY Kitty Crack:  ultra-potent catnip extract
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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…


200 comments
1-50 of 200
Sep 11, 2009. 11:16 PMMysteriousDragon says:
Why is there no such thing as dognip? (Woo hoo! Chihuahua on crack!)
Oct 13, 2009. 1:57 AMTishDaFish says:
My dog actually goes just as mental over catnip as my cat does. So try catnip, just make sure it's a dog-proof toy, because my dog completely destroyed all the cat's toys =(
Oct 13, 2009. 5:47 AMMysteriousDragon says:
Cool.
Aug 19, 2009. 9:49 PMeclipticsphere17 says:
going to open a vial at my local animal shelter, hopefully it will make everyone's day.
Aug 3, 2009. 4:38 PMi am peter says:
catnip is a hallucinogen for cats, even in its regular form. so this is basically making DMT for cats. probably not the best idea to have a cat tripping serious balls on this, potentially could kill kitty.
Jun 8, 2007. 3:16 PMmoep says:
The LD50 mentioned above is the amount that will KILL half of the people or animals who consume it; it's short for "Lethal Dose for 50%". An LD50 of 1.5 g/kg means that if you feed your 5kg cat 8 grams of nepetalactone, it has a 50% chance of DYING -- not just "being harmed". I suggest staying FAR, FAR away from that 8 gram dose.
Jul 22, 2009. 9:37 AMIconoclastic Technocrat says:
i agree. Also, ld50 is for acute, not chronic, so get puss to rehab if he gets a catnip monkey on his back! I'm a research chemist and I don't see many instructables like this - nice! I hope your boss doesn't find out you used the gc for this. Note your links to 3 papers are broken - for me at least. I'm guessing those are pay sites for articles.
Dec 15, 2007. 6:14 PMindigoandblack says:
Hehehe... all I can say is, *sweet* - I've just discovered my next project. :-D Nice work!!
Apr 11, 2008. 9:00 PMjoeliolyijr says:
lmao weed
Jan 18, 2009. 8:43 AMBerkin says:
Sorry to say, this is not weed...
Apr 25, 2009. 1:18 PMRabidrabbit91 says:
its weed for cats. chill. he was making a funny.
Apr 25, 2009. 6:34 PMBerkin says:
LOL
Jul 17, 2009. 1:22 PMDerin says:
The fact that rabidrabbit made "a funny" himself makes it more funnier.
Jul 21, 2009. 7:27 AMBerkin says:
XD
Jul 22, 2009. 12:28 AMDerin says:
xD xd Xd XD
Jul 18, 2009. 4:29 PMbowmaster says:
Release it from a plane flying over your town. Like a crop duster.
Jun 6, 2009. 7:15 PMnerdcuddle says:
Yikes! I wouldn't let my kitties anywhere near this, because of the toluene. Toluene is touted as "safe" by irresponsible companies who still use it in their products, but has been shown to be extremely toxic. I understand that the toluene supposedly evaporates away in this catnip extract -- like the alcohol does if you cook with wine, for example. However, I don't trust that the toluene wouldn't leave some trace, and that's not something I'd take a chance with.
Jun 1, 2009. 8:44 AMWhoIsJohnGalt says:
After reading the comments I'm feeling a little nervous about this. Some are saying that all the chemicals are safe (as long as you're careful) and in almost non-existent quantities. Others are saying that if you even think about buying ether or toluene then you'll go blind and your cat will explode. I'm not a chemist by trade but I've handled dangerous chemicals before and know (more or less) what I'm doing. I'm not worried about myself but how dangerous is this for my cat?
May 31, 2009. 2:41 PMShoubi says:
Dear lord, someone is recommending the use of organic solvents as non or low toxicity? This isn't the 1950s anymore, ether and toluene are incredibly toxic, even in low concentrations. Check an MSDS before you follow any directions here...
May 25, 2009. 12:02 AMbrandon borick says:
if i can refin this better can i splash it on some one and have a ton of cats eat off there skin
Jun 5, 2008. 4:33 PMwii is mint says:
could this be done with cannabis??
Jun 9, 2008. 6:45 PMdrwtbr says:
I'm afraid not, but there is other ways of extracting the THC (the junk that gets u high) from cannabis sativa. do a Google for "thc extraction" or something like that OR just click here:

http://www.truthtree.com/thc_extract.shtml
Aug 15, 2008. 10:33 AMpyro13 says:
(removed by author or community request)
May 4, 2009. 10:26 AMDerin says:
It's illegal...
May 2, 2009. 9:16 AMajn142 says:
I'm curious, is there any way to prevent the formation of the nepetalic acid? it seems like that would greatly improve your yield.
Mar 15, 2009. 9:50 PMhellstudios says:
so not all cats like catnip? because i used to feed like 2 lbs of catnip to my cat and it had no effect on her behaviour....
Jun 16, 2007. 5:27 PMmontdor1 says:
Many herbs and plants can be concentrated in similar ways, creating near-drug like purity and percentages of active ingredients. Take poppy seeds. A jar of them. Boil. The eventual sludge? Pretty strong opiate. Do this with saffron, or sassafras, either. And you get a unique, strong amphetamine, sold everywhere everyday. Because all of this is about information, people must get good info. Hence, instructables!
Mar 15, 2009. 9:31 PMaustin says:
saffron like the spice ? or the saffron crocus? cause the spice is ridiculously expensive.
Mar 15, 2009. 3:50 PMlemonie says:
Your GCMS trace doesn't start at 0 - I don't believe this was completely free of toluene - can you comment on this?
(Also 0.03% is an order of magnitude from 0.3%, which is far off to me)
Great Instructable though.

L
Nov 21, 2008. 8:42 PMmpmayer says:
wow just use ephedra plant instead of catnip and you make meth
Mar 1, 2009. 9:00 PMlofi says:
Wrong.
Feb 22, 2009. 3:49 AMShadowfury says:
ssssssssssssssssssssssssssssshhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh!
Dec 11, 2008. 11:30 PMcorey_caffeine says:
shhhhhhhhhh
Jan 20, 2009. 6:25 AMBerkin says:
ssshhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
May 31, 2009. 12:04 AMalexnester says:
ssssssssssssssssssssssssssssssss im a snake
May 31, 2009. 7:27 PMBerkin says:
Sssssssssssssssssssssssssssnape!
Jan 9, 2008. 1:39 PMongissim says:
Could you just buy "catnip oil" and refine that into pure nepetalactone?
Feb 22, 2009. 3:52 AMShadowfury says:
Where's the fun in that?
Jan 18, 2009. 8:43 AMBerkin says:
OMG, I HAVE to try this!!! Where do you get tolulene?!?!?!?!?!?!?
Feb 22, 2009. 3:49 AMShadowfury says:
Hardware store.
Feb 22, 2009. 3:46 AMShadowfury says:
Why waste diethyl ether on such frivolous endeavors? Also, as is mentioned below, there are serious flammability issues associated with diethyl ether.
Jan 31, 2009. 1:28 PMMeroki says:
so u basically made crack for furries xD does it make humans hyper as well?
Feb 21, 2009. 6:00 PMkikiclint says:
actually catnip is a slight sedative for humans. As far as I have noticed my cat always crashes shortly after actually eating much of the stuff.
Feb 21, 2009. 10:11 PMMeroki says:
oh o.o
Oct 29, 2008. 3:33 AMdrhealthnutty says:
I am so glad you posted this article. As the Manufacturer of Bella Mira Essential Oils, (the Largest Selection and Highest Quality Available, Guaranteed) www.abundantlifeessentials.com. You have proven what I tell people everyday. Most essential oils are adulterated or use chemicals to extract them. How sad that you would use Toluene to extract a chemical meant for cats. Cats cannot handle chemicals (metabolize or break them down), even in the smallest amounts and anyone who uses enough of this chemical will possibly harm or kill their cats. This is why Vets (including myself) are so careful about what they prescribe for pets. It should also be noted for those who aren't' chemists, when the author says organic, he means in the chemical form, not organic as in USDA Organic etc.. Now, lets talk essential oil. If you got pure essential oil. It would be so potent every cat would run the other way if you opened the bottle. You would have to put say one drop on the carpet and after the scent really faded the cats would then be attracted to it. Cats hate strong smells. Cats also like oregano, nutmeg and evergreen tree essential oils more. Please just use regular organic catnip for your cats. If you really want to drive them crazy try mixing in a small amount of other herbs or teas until you find the perfect one for your cat. All cats are different, about 40% hate catnip anyway. Who needs all the hassle, it's not worth the risk.
Feb 21, 2009. 6:10 PMkikiclint says:
is there any toulene left in it? like acetone or any other solvent, won't it just evaporate? I suppose you could light a match over it after it is dry. If it burns, it needs to evaporate more.
Nov 12, 2008. 11:53 AMScottSEA says:
Got to agree with your assesment on the organic catnip: there has to be residual toluene in there, which I wouldn't give to my cat. However, you might try harder to resist the urge to plug the ol' website, tho. Seems cheap.
Nov 12, 2008. 12:59 PMdrhealthnutty says:
I wasn't plugging the ol website because I need to. i have over 2 million readers per day. But because it is the only place that you can get a real good explanation of what I was trying to explain. I post in Instructables all the time and this was the first time i listed it. Because I totally agree it is cheap. There is no toluene in catnip it's only left in the oil when you chemically distill it like in this article.
Feb 2, 2009. 8:35 PMbowmaster says:
Best idea ever!! Get a small (tiny) glass bottle and take it to the kitty pound. Smash it where no one will see. Instant Kitty madness.
Jan 28, 2009. 10:20 PMboson research says:
Using diethyl ether has some major downsides. Some folks may remember Richard Pryor, the comedian who recorded "Pryor on Fire" after a mishap with this stuff. I'm a chemistry professor. Been at it a long while, and I treat diethyl ether with a huge amount of respect, because it will catch fire in ways you may never have experienced. The fumes can travel across tabletops and floors quite some distance before reaching an ignition source, then nasty things happen fast. We don't turn light switches on or off when this is in use, there's a chance of triggering an explosion. So, while toluene certainly has toxicity problems, diethyl ether has huge flammability problems, vastly worse than gasoline (it's a starter fluid for use when it's too cold for gasoline to vaporize, that tells you how easy it is to light!). It's just not the sort of stuff to store around the house, especially if you don't live in a region with Arctic weather. Burn units are terrible places to spend months in, so think this through with care.
1-50 of 200

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