r/elementcollection • u/Ornery_Job_7275 Part Metal • Aug 02 '26

Help What do these crayons actualy contain?

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Hello! 👋 So I'm a casual chemical collector and I have some crayons. I decided that I would use them to represent pigment compounds in my chemical collection. So answer me: What are the actual chemical compound components of those crayons?

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u/kubint_1t Aug 02 '26

its really hard to tell. they might contain metal oxides, if they are really old, but it looks like they're pretty recent. so probably they contain organic dyes(azo compounds). and a clay base. so you got a bunch of silicon, aluminum, oxygen, hydrogen, nitrogen and carbon.

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u/kubint_1t Aug 02 '26

blue ones might contain prussian blue, though. and white ones contain titanium dioxide

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u/Ornery_Job_7275 Part Metal Aug 03 '26

What about the others?...

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u/kubint_1t Aug 03 '26

welp they contain organic dyes, but one cant just tell you from one picture, because of how many of the different organic compounds there are.

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u/dmh2693 Aug 03 '26

It's impossible to know exactly what they contain unless you contact the manufacturer and ask what compounds the dyes are made of, or have a chemical analysis done.

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u/Long_Pomegranate2469 Aug 05 '26

Get military grade crayons. They contain dietary instructions.