Making Paris Green A Toxic Green Pigment

In todays video an historic and toxic pigment called "Paris green" will be prepared. Paris green is an arsenic based pigment and thus extremely toxic. It looks beautiful though.

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[Bloated_Tony_Danza]

I found a quarter pound of Paris green in a dumpster one day. It’s in a paper canister and the warning label on it says to eat three egg yolks, then take sodium bromide and opium to treat poisoning. Needless to say, the canister is very old

[TootlesTart]

3:15 The vibrant Paris green begins to come through and glow beautifully

In the 19th century it was widely used to paint wood garden trellises and wood garden benches. Monet painted his wooden bridges and wood shutters with it at his Giverny, France waterlily garden. In Paris, boxes for shops were covered in Paris-green-painted paper. I suspect that Paris Green had the added benefit of keeping nuisance critters at bay that might eat paper and wood.

[SuperAngelofglory]

This was probably the most used pest controlling chemical for the greater part of the XXth century here, but it is now virtually unobtainable, for good reasons, I would say! Since you have acces to arsenic, you might try making some cacodyl derivatives.

[lajoswinkler]

You forgot to add the chronic toxicity label. :)
I've never seen this pigment but I sure read a lot about it. Maybe I'll make it this summer.

[leosedf]

That is actually precious, the reason we cannot produce very good blue colors on fireworks is because we cannot find paris green, it can actually make the best blue colors out there.

[alllove]

It was also used in making very decent blue fire in pyrotechnics. The stars in mortar shells. Decent ones.

[SodiumInteresting]

Those bags can leech especially with damp solids inside. I started out storing things I'd made in those but now it's a sticky pile of about 50 of them, including mercury chloride and all sorts 🤦
I did find a bottle for the mercury chloride but yeah wasn't nice to find that when I did. 10ml or 20ml glass bottles are the way from now on.

P.S
I'm currently working on a paris green video, it should be up in a day or so 😊
Also got a new phone so I'll probably see you on discord...

[chemistryofquestionablequa]

My grandfather was accidentally poisoned with Paris green on an onion he grabbed from a neighbor's garden when he was a kid. Luckily he survived it, otherwise I wouldn't be here!

[musicurio]

Thanks! Good chemistry competently carried out and well explained.

[Bloated_Tony_Danza]

There’s also Scheele’s green, yet another green arsenic compound. Paris green was the “new and improved” green arsenic pigment

[GMCLabs]

I made a cheap and pretty effective inline desiccator for my vacuum pump using a large mason jar filled with silica gel cat litter. Just drill 2 holes in the lid put a couple tubes with a stainless steel mesh screen on the end of it to keep the silica gel from getting into your pump or your glassware. Eventually I plan to make a better one using a long PVC pipe so the moisture gets a longer contact time.

[douro]

Also known as Scheele's green, and the subject of an urban myth surrounding the gas produced by fungi eating the dye.

[treelineresearch]

Pretty sure the underside of the eaves of my house are treated with this, probably from when it was built in the 1930s. The wood is very well preserved anywhere the green is.

[JustinKoenigSilica]

That is such a cool color.
Btw, did you ever get around to making Silica gel like I asked for a while ago? (rip concentrated acids, but should still work)
Also my drying method sucks that I mentioned, spray drying is preferred. Ofc that's hard to do in a home lab.

[BackYardScience]

Exceptionally nice video! I love this pigment so much. Do you have a video on Arsenic III Oxide?

[empathicwindow]

Now I'm curious if there's some way to "clean up" arsenic waste so that it's as non-toxic as possible

[yasserotb]

Yes some toxic chemistry I would like to see some cadmium chemistry

[alacrity]

Fascinating and looking very nice~. I did some research and turns out there's a similiar reaction with antimony trioxide, which also leads to a green product. If you use bismuth oxide, you get black crystals, though, which also occur as the mineral "Kusachiite" in Japan. I only found stuff without the acetate, though, so just CuSb2O4 and CuBi2O4. (The arsenic compound without the acetate also exists and is called "Trippkeite") Would be interesting to see what happens if you add Cu(OAc)2 to Sb2O3 or Bi2O3 - whether there's some acetate in there like in Paris Green or you get the pure oxides like in Trippkeite, I guess~. (Though your lab is probably not equipped for stuff like that, just thinking out loud...)

[davidfetter]

In addition to epic chemistry, can we look forward to lyric chemistry?

[mtalhakhalid]

Most songs they use "green color" as metaphor for poison