The wrong way to make Burnt Sienna

Not quite what I expected.

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[AllanEngelhardt]

Kids: do not burn random chemicals you find at home! Please. Plenty of watercolour pigments are toxic in high concentrations and who knows what the manufacturer puts in the tube. Dry pigments are especially hazardous because they are easily inhaled and ingested.


Teoh: You are just burning the gum arabic, which is why it is hard to dissolve the "paint". Get the pigment, burn it, mix it with gum arabic, and then paint. But wear protective gear.

[EstrafaDC]

LOVE IT! You made me laugh with your intro. "Answering a question NO ONE asked." and "this is an irrelevant video."
PLEASE keep experimenting like this. They're fun videos. And good demos of a sort.

[MM-dwir]

Nobody:

Teoh: let's burn watercolor with a lighter

[macCALICOmac]

"Sometimes when you're on YouTube too long" 😂

... The beginning of all scary stories. This was hilarious 😂

[lionheart]

Can you make ultramarine blue by dipping phthalo blue in the ocean?

[dei]

My fave part here is that when Teoh saw the soot at the back his immediate thought was to paint with it. Hahahahaha

[Meyra_]

The humour of an artist is something else 🎨😂 " answering a question that no one asked" 🎬

[barbararichards]

In was feeling miserable until.I watched this. I've nearly died laughing. Thanks Teoh, I always love your channel anyway for your wonderful art, but you've put A smile on my face today. Keep arting my friend xx

[patricial]

Interesting experiment. I suspect it would have been better to get a raw sienna powder pigment and "cook" that somehow. I think the binder in the tube watercolor was burning. But I am just speculating.

[MissMagic]

You did in fact make lamp black, that's exactly what it is. You might have more luck heating raw pigment rather than paint if you really want to try playing with this kind of thing. There's a science youtuber called NileRed that has done some videos making dyes from scratch you might find interesting.

[vickierayhill]

I think when the pigment makers make "burnt" colors, it is done by firing the ground minerals very high temperatures in a kiln, with or without oxygen, to drive off any water molecules in the chemical structure of the minerals thus affecting its color. Just heating the tube paint with a lighter is evaporating the water and burning the binder, not changing the chemical/molecular properties of the mineral color.

[J.Dibble]

Teoh goes where no man has gone before! (Or will admit to it!)
This was fun! Puts smiles on our faces. 😆😆😆

[keohu]

maybe not the most usefull video ever, but in my eyes it is. I always thought of it but never really tried so thank you to making a "scientific experiment"

[bradnjenministries]

Funnest "irrelevant" video I've watched in a long time. Absolutely loved that disclaimer. And I was literally smiling the whole time. Wouldn't there be a possibility of the chemicals of the paint reacting with the aluminum? I agree with the warning to "not try this at home" by Allan. Let's let Teoh do the random hare-brained crazy watercolor experiments and let's all watch and laugh!

[bilgeizgin]

Probably the binder is burning out and causing a different reaction with the pigment. :P LOL! I laughed so hard when you painted with the burnt aluminum on the other side. 😂 Cool video! Thanks for the laughter!

[tolingusbolingus]

This was pretty nifty. I welcome seeing more random experiments of this sort from time to time, but do double check on health/safety facts in aadvance!

[TsukabuNosoratori]

This would be too funny to continue as an April Fool's joke video! I love it, I was chuckling so much xD

[macCALICOmac]

LMAO at your warning of irrelevance 😂😂😂😂😂

[tinyrobot]

Sooo I looked it up and actually it is right that burnt sienna and raw sienna are made out of same iron ore limonite and by heating the iron oxide is dehydrated with turns it into Fe2O3 (ferric oxide). basically rust . which gives burnt sienna it's colour and apparently it was the first pigment to be discovered.and it is called sienna because it was the place it was discovered in during the renaissance. But for the reaction to take place it needs to go through roasting process in a furnace. Which needs to be under the ores melting point but not too low. So, can you can't turn your paint to burnt sienna. Yes, if you have furnace in your home

[donnamay]

I never knew I needed this information until now. Wow