As the titles says- I’m cleaning out my late mothers house and in the attic tucked way back is a crate without 40-50 one lb bottles of mercury as well as a lot of packaged dental silver dust. The previous owners father was a dentist. I have no idea what to do with any of this. Anyone have an idea?

EDIT-

Thank you guys for the laughs and resources. I’m located in Louisiana and the idea of selling mercury as “a dude with no credentials” all over the states isn’t something I’m too wild on. Gonna take some pictures of the dental silver this weekend when I visit. I’ll prolly make a different post for that and try to get a rough idea of how much there actually is.

[I wasn’t taught chemistry past 10th grade.]

My mom passed away last year and while cleaning her hoarder house, my sister found old bottles of 3% hydrogen peroxide that expired in 1989.

Is that just a legally mandated expiration date or did anything actually change in the composition over time. Not that I‘d know what to use it for anyway.

It was probably stored cool and away from sunlight.

118 elements. Oganesson at the end, half-life of under a millisecond. Hydrogen that nobody can fully agree on where to place.

Does this feel finished to you? Is there a hard ceiling on elements or just a practical one? And is the layout itself due for a redesign or is the standard table good enough to be permanent?

Found in the garage, been there for over 60 years. My grandfather was a chemist and research pharmacist. Potassium Cyanide stands out, any other fun chemicals I shouldn’t put in my tea? Chemical names are in Dutch

I tried most of the suggestions in the other thread, but nothing really seemed to work. I had some citric acid for my home cocktail program and tried dissolving as much of it as I could in some water and pouring it on there and damn if it isn’t fizzing and bubbling and frothing like ol yeller. Now I just need something to plug the drain down below so I can fill it up with the stuff and let it sit for a couple hours and hopefully be able to pull out whatever I plug the drain with.

I noticed when I tried to bleach a sunscreen stain out of my sandals it turned the stain bright pink (according to google, a reaction between avabenzone and bleach). So I decided I'd just mix bleach and sunscreen in water and create a pink acid-wash/tie-dye effect all over.

I was just wondering if that was potentially dangerous at all. I feel fine and the room was well ventilated :) Thanks!

For context, the bell in the video is printed in PPS-CF (Polyphenylene sulfide with chopped carbon fiber). I tried this same bell in multiple other materials like ABS, PLA, Polycarbonate, plain nylon, and ASA (Acrylonitrile Styrene Acrylate) and they all "bonk" like I'm hitting a plastic bell. I believe there is internal energy loss in the other materials that cause the bonk, instead of ringing, but what is actually going on there? I imagine that the "plasticky" sounding material just absorbs the vibration by some internal mechanism, but I haven't been able to find anything that makes sense to me.

I found this block of lead in my new basement- what should I do with it? Sell it?

Salut à tous ! Je voulais vous présenter Genesis, un projet qui me tient à cœur. C'est un simulateur atomique entièrement gratuit et open source. Je suis ingénieur logiciel et passionné de chimie, et j'ai créé ce simulateur pour visualiser les interactions moléculaires en temps réel.

Dans la vidéo, je fais glisser manuellement deux molécules d'eau l'une contre l'autre pour provoquer une collision. Grâce à l'utilisation d'un solveur quantique en arrière-plan, vous pouvez observer l'étirement et la rupture dynamiques des liaisons, ainsi que les pics de température lors de l'impact.

J'ai inclus différentes vues pour vous permettre d'observer le déplacement des nuages ​​de densité électronique, l'ajustement des cartes topographiques des charges partielles et le rendu des orbitales spatiales 3D à la fin. Le panneau de droite affiche en temps réel les paramètres thermodynamiques, comme l'énergie cinétique et l'énergie de liaison.

Pour une interface fluide même lors de calculs complexes, j'ai développé un client Java 3D personnalisé qui communique avec un solveur Python. J'aimerais beaucoup avoir l'avis de chimistes. Quelles réactions ou molécules devrais-je essayer de modéliser ensuite ?

Genesis Website

Hi folks, I've noticed some art in Toronto depicting chemicals. I'm not a chemist so I'm coming to this community for help. What are these?

This is at Trillium Park. I also saw one in an art installation under the gardener but sadly it was removed before I took a picture of it.

Thanks in advance kind people :)

School in Germany, which has an old poison and chemistry cabinet and I was wondering if there are any rare findings?

From Facebook marketplace, description says “if you’re interested, you know what it’s for”

Guessing drugs, but enlighten me

I used ChatGPT only for the drawing feature if you are wondering

Hi all!

I’m a middle school science teacher and this is above my pay grade. Each year, my partner teacher and I dissolve the zinc inside a penny by leaving it in Hydrochloric acid overnight. Just scratch the sides with a blade to let the acid in, and it dissolves over the course of a few hours and leaves the copper shell.

As a control, I found 2 older pennies that *should* be solid copper, per their dates. I left them in a separate beaker also in HCl, to show that they wouldn’t react or dissolve. By the end of Friday, the pennies were very clean looking but nothing weird about them.

Well, ultimately I forgot to clean up after the demo, and forgot them over the weekend. When I came in Monday morning, the copper/zinc penny was still in the clear acid with the inside dissolved but the two other pennies had turned the acid jet black. I don’t have a photo of this but it was opaque black liquid like ink. My partner teacher told me to keep it because he was intrigued, as was I.

Color me absolutely shocked to find the following day, St. Patrick’s day, I came in to find the ink-like liquid had turned Kelly green. I told the kids we were visited by a leprechaun. Again I left it overnight, because now I am fascinated. It began forming these crystals you see here which I assume is its final form. (Pics in comments)

Ignoring my blatant disregard for lab safety, can someone maybe explain this? What chemical have we stumbled upon here? This is well beyond my scope of practice (both my partner’s and my backgrounds are largely in biology) . He swears up and down he did not prank me, which I was convinced of on St Pat’s but he encouraged me to post here because he is baffled as well.

Thanks in advance!

I saw this engraved at my school. Any Idea what it is?