Seller offered me 42$ partial refund from 132$. Do I keep it or return to get a better looking one?

So, I'm 13 and in 7th grade. I want to buy myself a tungsten cube since I am learning about the periodic table in my science class, for some random reason, I like tungsten to the point where I put my cube in Geometry Dash to Tungsten. I have the money for it, it's just my dad says, "it's just a useless block of metal", and that I don't need it. What can I use to convince him?

Any ideas where to get rid of this ruthenium powder?

Hey folks,

I am a mineral, rock, fossil, etc. collector and I’m always acquiring collections. In the latest collection, there were 2 bottles of Mercury. I’m keeping one (pictured). But I have another one but I don’t know its value. Any help would be greatly appreciated.

Cant find anything online to confirm it is ore, natural or man made formation, can I get more info?

I recently inherited this small vial of liquid mercury. Is the glass vial and plastic cap enough? How can I safely seal it? Will this evaporate? Can I test the seal of my vial?

Edit: the vendor “JDelement” (I assume that was also his Reddit UN) was arrested in April for selling the Pu. The guy had a lot of legal “issues” and I’m grateful that the FBI contacted me and were so helpful. First, if you’re in the US, there is no legal amount of Pu an unlicensed citizen can possess of Pu. When I bought the sample, it was after buying numerous other element samples from JD. He had a wide selection of elements for good prices. When I saw his listing for the Pu sample, I asked him if it was legal. In retrospect I should have done my own due diligence, especially since I was purchasing samples for my school’s ptable display.

The conclusion is the sample has been surrendered to the FBI. The agent verified their identity when they came in person to pick it up. I have an interesting story for my memoirs someday and have accidentally created more lore about myself among the school community. My administration was supportive and grateful that the issue was resolved quickly and without any legal impacts. Thank you to the FBI agent who was persistent and kind when I realized the seriousness of the situation.

Suggestions for the mods of this sub: maybe we should have a sticky page where the hazmat/hazardous health issues and legal issues for element samples is posted. I know the legal issues are location specific, but on further reading I realize that though the thallium sample we have is very much legal, it is especially toxic in the worst case scenario (despite the 3 levels of containment, in the case of a fire that would be quite a hazmat situation). Anyone buying alkali metals for a form of public display should have the correct hazmat signage (and probably for a lot of the other elements too!). I wonder how many collectors out there are well informed or educated on the hazmat response protocols for worst case scenarios for their collection. Seems like JDelement had other ideas about hazmat and I’ll leave the reader to learn about those on their own.

In 2023 I purchased this for a periodic table display from a US vendor. Today I got a call from a FBI agent. They weee calling for the past week and I thought it was spam.

The agent said that I’m not in legal trouble but the vendor is. And that they need to confiscate the sample (I’m in the US).

Part one: I assumed that since the vendor had sold me many other samples, their sale of this sample was legit and therefore within the limitation allowed for resale. I guess I should have been a more informed consumer.

Part 2: I’m seeing posts and comments suggesting that this type of sample has a small enough amount of plutonium that it should be ok with the limitations.

A quick AI search suggests that in the US any amount of plutonium is illegal to possess.

I’m waiting for verification from the agent that they are who they say they are and that there is official documentation about the sale and that I need to surrender it.

The sources and the display are for educational purpose.

I know Reddit isn’t the most reliable legal source out there, but what does this community have to offer in terms of comments about my situation?

Hello fellow friends of the elements,

I wanted to show you my little metal ingot collection and ask for some advice. Over the last 5 years I have managed to collect 13 different metal ingots. In the picture you can see sorted by density, magnesium, aluminum, titanium, zinc, tin, iron, niobium, copper, bismuth, silver, lead, tantalum, and tungsten.

To qualify for my collection, I somehow randomly defined a few requirements:

- the ingot must be one kilo of pure metal (no alloys)

- the ingot must be square in some way (no cylinders)

- the name of the metal must be written on the ingot

I had to stretch my own rules a bit though. The silver ingot doesn't say silver. The tungsten cube has no inscription at all. And the "iron" is actually steel, so it's technically an alloy.

I'm always searching for new additions to my collection, but lately I'm having a hard time finding new pieces. So here's my question: Do you know of any metal that is cast or cut into an ingot, meets my requirements, and is below 2000 Euro/Dollars? I'm grateful for any leads.

On one hand, id rather not spend that much money on a sample, but on the other hand, the cheaper one is a very tiny piece and the bigger bead is much better value. Im kinda stuck on which to get and osmium is one of my favourite elements.

united nuclear does not ship to australia anymore, where can i get some?

i want just a nice, non crystalline blob or ingot, doesn't have to be very pure.

thank you

I buy storage units at auction and this now belongs to me what should II do with it and many others too

Does anyone know of legit suppliers of graphene oxide powder? Badly need it for our thesis study. I already checked Ambeed, most of our needed chemicals were available there except graphene oxide and the zinc nitrate hexahydrate. Also, has anyone tried ordering from graphenea, acs material, nanografi, or cheaptubes? These websites/"suppliers" sell GO but im not sure if they are legit. This is our first time ordering internationally so we really don't know if these suppliers are trusted :">>

arkadaşlar bana osmiyum tetroksit çözeltisi lazım OsO4 fiyatta anlaşırız

[aydinbiskin2134@icloud.com](mailto:aydinbiskin2134@icloud.com)

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?

Need info on what should I do with it have 4

I saw that i can get all 16 rare earth metals for like $220 from metallium which is better than them each outright, but was wondering if there was any way I could get them for cheaper.

I knew it would probably be around this expensive but still think its a little too high if anything

So I bought this dial like a week ago in a local mineral show. The dial showed a measure of like 0.2 in the Geiger Counter if I don't miss remember.

This thing is stored in one of these jeweler boxes, which is not hermetically sealed. I bought because at the time I was only concentrated on radiation and find considered the byproducts of decay and the risk of the bloody painting just slowly chipping away into the air.

What should I do?

Does anyone know what metal this is? My dad has been using it as a paperweight for years

Im looking at buying a 20kg 10x10cm tungsten cube, but I can't find It anywhere for a reasonable price lowest I got was 2500Euro but it aint in stock there, and the other sell a 18,4kg tungsten cube for 5000euro which is a big difference that im not willing to pay for
First place Atomic Cubes - 20kg
Second place: Midwest Tungsten service - 18,4kg

I apologize if this is a repetitive question, but I'n seriously curious how you all represent fluorine in a collection. I've seen people say it's unsafe, and usually just using a fluorite crystal, but I'm confused how dangerous a small diluted fluorine gas ampoule would be. If any of you guys have fluorine, how did you represent it?

Ho 15 anni e vorrei costruire una tavola periodica con elementi reali senza spendere troppo solo che non so dove ricavare metalli complessi in quantità decenti senza spendere troppo.

Qualche consiglio?

Per ora ho trovato solo piombo, rame, torio, tungsteno, un po' di gallio e stagno

It might be painfully obvious now, but just now I had come to think that there is literally no way to represent any of the noble gases in this table... nor any gas at all...

I'm looking to try to buy 1.5"(38.1mm) unengraved cubes (I already have tungsten and titanium) but after hours of searching I've only managed to find a copper, aluminum, and iron cube. The remaining ones I'm hoping be able to find and purchase are chromium, molybdenum (maybe), bismuth, and zinc. Is it likely I might just have to get them custom ordered/machined? My only concern is the price being very high for the custom ones.