What do I need to create a Belousov–Zhabotinsky reaction?

This does not look like something you can do effectively except in a wet lab.
The reagents are not things to mess with at home and the materials are not typically found in the kitchen or workshop.

Arg. As a chemistry grad student, i say please, please don’t do this at home. As @Dr_Lawrence said these reagents are quite hazardous, assuming you could even get your hands on them, at least for a typical setup. If you have some specific non-hazardous cocktail you know of, i may be able to help, but typical ones use bromine and strong acids. The acids you may be okay with, but bromine is horribly toxic and generally bad stuff. And acids aren’t exactly great.

Belousov–Zhabotinsky reaction

Very cool and interesting. :-)

Yes, very cool. and horribly toxic. Hence the reason that guy’s doing it in a chem lab.

“KBrO3, Malonacid, KBr, H2SO4, H2O and you add Ferroin to get the red color at the beginning.”

Just the first one is a combustible material that is “Incompatible with… organics.” Source And you’re made of organics, if you don’t recognize the term. Very cool reaction, but you need a lab for it.

fascinating!...never heard of this before…can someone tell me why it’s dangerous?...(sorry I don’t know anything about chemistry…!)

The chemistry needed is nasty stuff.

@lynneblundell Well, here’s some safety data on those materials I listed as reagents.

KBrO3 i already addressed, but here’s more specifics: “contact with combustible materials may cause fire. Incompatible with combustible material, organics, reducing agents, aluminium, finely powdered metals. Harmful if swallowed. Possible human carcinogen. Eye, skin and respiratory irritant.” Source

Malonic acid is, actually, not too bad.

KBr: (sorry for the caps):” HARMFUL IF SWALLOWED OR INHALED. AFFECTS CENTRAL NERVOUS SYSTEM, BRAIN AND EYES. MAY CAUSE IRRITATION TO SKIN, EYES, AND RESPIRATORY TRACT. ” Source

H2SO4 is a strong acid: “Causes severe irritation and burns. May be harmful if swallowed. Avoid breathing vapor or dust. Use with adequate ventilation. Avoid contact with eyes, skin, and clothes. Wash thoroughly after handling. Keep container closed. ” Source

And of course water’s okay (though you have to be careful with mixing a strong acid and water, as it can heat up a lot, enough to break glassware, and can even explode), and Ferroin is also rather mild. So, that’s half of the requisite materials that are highly dangerous. Yeah, not a good idea outside of a lab.

thank you x