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Blood, the chemical way!

Blood, the chemical way!
Well well, well. It's Halloween. What would Halloween be like without blood effects? As much as I may despise this "holiday" it is Always fun to MAKE something awesome for a costume or just something to scare the crap out of anyone. I mean, that's what it's all about right? (or is it massive sugar rushes...?)

So we get onto the instructable itself.

Now, before I go any further, we are dealing with CHEMICALS. Yes, that's right, CHEMICALS! they may be awesome, but as a disclaimer (though these are not volatile, nor caustic) I take NO responsibility for your stupidity. One of the chemicals is a TOXIN hazard. AKA don't drink it, it's not good for you. Also, the final blood product is kind of like medical iodine, it WILL stain, and takes a fair amount of washing to get the color out of your skin. No burns, but toxic, and stains. Act accordingly.

This might also not be something smart for children under 10. Stick with red cool-ade.


That said, let's have fun! This can be used for special FX in movies and not only Halloween! For hair raising blood effects, I've never seen anything like this! It's so crazy close to REAL blood that you'll have your neighbors dropping their mouths and dialing the local hospital for an ambulance!

Even better, this requires no pumps (heart included, we're not actually cutting ourselves)

So what DO we need?
 
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Step 1Materials

Materials
Here's what you need.

Potassium Thiocyanate
Ferric Nitrate
Two plastic spoons
stirring rods (can be spoons)
shot glass
water
two containers to put your two part blood in. Should be easy to seal, and easy to carry.
Paint brush (optional, but recommended)
dull something to "cut" yourself with

Don't know where to get the chemicals? look here:
potassium thiocyanate:
http://www.hometrainingtools.com/catalog/chemistry/chemicals/chemicals-m-p/p_ch-kscn.html

Ferric nitrate:
http://www.hometrainingtools.com/catalog/chemistry/chemicals/chemicals-d-l/p_un1466.html

30g lasts a LONG time, and makes one heck of a lot of blood. Maximum you'll ever need is two bottles of each... unless you intend to bathe in the stuff... (see stupidity disclaimer)
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54 comments
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Oct 17, 2007. 6:20 PMeviltechie says:
This is so cool. This could be used as a great effect in theatre. I heard cyanate. Is'nt that related to cynide.
Aug 11, 2011. 3:48 AMNagarok says:
That little oxygen is a significant factor though.
From Carbon monoxide to carbon dioxide is a major difference.

One kills you, one doesn't
one is only present in insignificant amounts naturally, one is the very reason why our world runs.
Jan 23, 2011. 10:41 AMzimmemic25 says:
Hi, I'd like to ask if there's another way to get this effect, because the problem I see is the potassium thiocyanate (the uncolored solution) is (at leas in EU) rated as "toxic when in contact with skin" (don't know the exact translation, original in germany is "R 21 Gesundheitsschädlich bei Berührung mit der Haut")... and that's the solution you paint on your skin…
Oct 15, 2010. 4:28 AMnavik says:
does anyone know where to Potassium Thiocyanate and Ferric nitrate from because www.hometrainingtools.com dont sell it anymore.
Sep 3, 2010. 7:17 AMhoppe_groda says:
OMG! You are a freaking genius! :D
Jul 23, 2010. 12:58 PMweesuzi says:
http://cartwright.chem.ox.ac.uk/hsci/chemicals/potassium_thiocyanate.html Hmmm It is harmful so you are taking a bit of a risk with this stuff, check out the safety data sheet above
Aug 12, 2009. 2:27 PMDuct Tape Dude says:
Can you ummm... repeat the first two materials in English?
Oct 26, 2009. 3:05 PMMovienoc101 says:
I believe he did ;)
 
Dec 7, 2009. 3:56 PMDuct Tape Dude says:
I ment in terms I can understand (sorry for stupidity ^_^ )
Aug 13, 2009. 2:56 PMiwon95 says:
actually no those are the names of the chemicals. you know how chemicals always have long name :P
Oct 13, 2009. 12:33 AMilovegm says:

Fake blood: [Fe(H20)5.SCN]^2+

Its an aqueous complex solution and thus watery, you can always try to thicken it with stuff like corn syrup.

Oct 26, 2009. 3:05 PMMovienoc101 says:
lol
 
Nov 10, 2009. 3:47 PMbad ass pope says:
You may "lol", but that's actually a very useful comment. I was thinking it looked rather watery.
Mar 8, 2009. 9:54 AMkrisking93 says:
what if the fluids gets dry will it still work
Oct 26, 2009. 3:06 PMMovienoc101 says:
I don't think u would have it on that long. :)
 
Sep 14, 2009. 4:35 PMSniper72 says:
The two components create a "chemical" blood, My question is does the "chemical" blood have a similar viscosity of that actual blood?
Jul 18, 2008. 3:41 PMszechuan53 says:
yay, unconscious mom!
Mar 10, 2009. 4:33 AMPKTraceur says:
lol!
Mar 10, 2009. 4:32 AMPKTraceur says:
Aweosme! Probably not something I'd show off though. -PKT
Nov 25, 2008. 6:56 AMmaruawe says:
When mixing chemicals you always turn the two chemicals into another chemical. What is the mixture called after mixing. and what is the possibility of the combined mix being toxic when dumped esp. washed down the sink where you have just cleaned with bleach or borax
Nov 25, 2008. 5:57 AMBerkin says:
This is pretty awesome.

It would be better, though, if you could not see the skin underneath the red in places. Because then it just looks like there is mysterious red liquid appearing, and no cut.

It would be a great improvement if you found something that could blacken the skin and make the blood, so it looks like an actual cut.
Oct 16, 2007. 6:50 PMJohn Smith says:
OK, let me start off by saying that this is awesome, and looks extremely cool. Anyway, here's the health part of the MSDS for Potassium Thio-whatever:

Potential Health Effects


Inhalation:
Causes irritation to the respiratory tract. Symptoms may include coughing, shortness of breath.
Ingestion:
May cause psychosis, vomiting, disorientation, weakness, low blood pressure, convulsions and death which may be delayed. The probable lethal dose is between 15-30 grams.
Skin Contact:
Causes irritation to skin. Symptoms include redness, itching, and pain.
Eye Contact:
Causes irritation, redness, and pain.
Chronic Exposure:
Prolonged or repeated skin exposure may cause dermatitis. Repeated ingestion of small amounts may cause weakness, confusion, central nervous system effects, nausea and skin eruptions.
Aggravation of Pre-existing Conditions:
No information found.
Oct 16, 2007. 9:33 PMLftndbt says:
Skin Contact:: Causes irritation to skin, Symtoms include redness, itching and pain. This does not make me overconfident in slapping this on my skin. Any chance you could clarify this for me? Are these effects only "potential"?
Oct 20, 2008. 1:26 PMszechuan53 says:
these will probably only happen if you have an allergic reaction. if for some reason you want those symptoms, sprinkle on some powdered sodium. it also adds a flame.
(ps, don't do this)
Oct 17, 2007. 4:34 AMJohn Smith says:
I'm not sure, I just copied it from the MSDS. I think it is a potential, but I'm not sure.
Oct 16, 2007. 6:53 PMJohn Smith says:
Here's the info on the Ferric nitrate:

Health Rating: 1 - Slight
Flammability Rating: 0 - None
Reactivity Rating: 3 - Severe (Oxidizer)
Contact Rating: 2 - Moderate
Lab Protective Equip: GOGGLES; LAB COAT
Storage Color Code: Yellow (Reactive)

Fire Fighting Measures

Fire:
Not combustible, but substance is a strong oxidizer and its heat of reaction with reducing agents or combustibles may cause ignition. Fire may produce poisonous or irritating gases.

Explosion:
Contact with oxidizable substances may cause extremely violent combustion. Sealed containers may rupture when heated. Sensitive to mechanical impact.

Fire Extinguishing Media:
Dry chemical, foam, carbon dioxide, or water spray.

Special Information:
Wear full protective clothing and breathing equipment for high-intensity fire or potential explosion conditions.
Oct 16, 2007. 6:54 PMJohn Smith says:
Explosion is supposed to be bold too.
Oct 20, 2008. 1:21 PMszechuan53 says:
just so you know, your link doesn't sell either of these anymore. however, you can still get them at american elements.
Sep 22, 2008. 12:32 PMkmc512 says:
wow. i want to do this. right now. but my roommates are all pretty girly and i don't want to freak them out too much. well done, two thumbs up. :)
Oct 15, 2008. 6:31 PMbdblock94 says:
thats y you freak the out
Oct 15, 2008. 3:26 PMszechuan53 says:
will it work if the potassium thiocyanate is dry???
Jul 28, 2008. 3:37 PMlnknprkfrk13 says:
Would this work if you let the stuff you put on the knife dry? If so it would look a little better and you wouldn't have to hide anything from the camera.
Apr 14, 2008. 2:26 PMPancakeslayer says:
nice, you added a "incurable diseases" section on your safety issues, that'll make the youngins stay away from anything
Mar 14, 2008. 4:27 PMThaychris says:
I bet if someone did a production of Sweeney Todd, this would come quite handy.
Jan 28, 2008. 9:04 PMkoax says:
Somebody know where can I find some in Canada? (Quebec) Because US company wont ship it in canada.... Oh and thx man for this good Instructable if i can find the 2 chemicals it will really help me whit some magic trick +1
Jan 19, 2008. 4:38 PMpengyduck says:
I'd love to make this, but the chemicals aren't sold anymore in those sites. It stinks that that's happening.
Jan 6, 2008. 6:45 PMShifrin says:
This is one of my favorite movie effects, its easy and it is more of a low cost. Nice Instructable! +1 Rating! -Alex Shifrin
Oct 17, 2007. 6:31 PMdarthdredge says:
both of your links go to potassium thiocyanate. this is the link i found for ferric nitrate at that website:
Ferric Nitrate
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