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j_sum1
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No issues whatsoever. Never have been with Onyxmet. I believe their secure packaging of the Na circumvents a lot of regulatory issues.
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HeYBrO
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Quote: Originally posted by j_sum1  | | No issues whatsoever. Never have been with Onyxmet. I believe their secure packaging of the Na circumvents a lot of regulatory issues.
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thanks, I think ill buy some!
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NedsHead
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I bought some Graphite today, there's a pallet of it sitting at the local scrap yard. They didn't even know what it was. Maybe I should go back and
get some more while it's cheap.
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j_sum1
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Do you want to be a middleman? I will buy some off you!
I'll PM soon.
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NedsHead
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Yeah sure, I have no idea what grade it is though, it has some numbers written on it, you can see part of them in the pic
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ave369
Eastern European Lady of Mad Science
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My latest order was a strange one. Usually I bought Chinese-made retorts relabeled in Russian, from a company known as Rushim, which could rather be
called "El Cheapo" (or "Cheapovsky" in our case). Their glassware costs pennies but is notorious for low reliability. Two Rushim retorts I've already
seen cracking.
But now I've found a native Russian glass-blowing workshop that makes, among other things, retorts. But they have a strange idea of what a retort is.
The "nose" is short and has no section pointing downwards. There is no tubulus, and it has a flat bottom.
To add insut to injury, they do not sell to private persons. I had to ask Antrazoxrom, our friendly local chemical mail order shop, to buy it from
them and send to me. Why did I need to buy such a gimpy retort? Because they advertise the glass as very robust, and I need the retort for hot-drying
sulfuric acid in the Batparatus! And for the Batparatus, such a retort is good.
Looks like I'll end up with two retorts. One Cheapovsky, crappy glass, but proper shape - for not very harsh conditions. And the other, the gimp I am
buying, for boiling sulfuric acid and similar nastiness.
[Edited on 15-12-2015 by ave369]
[Edited on 15-12-2015 by ave369]
Smells like ammonia....
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j_sum1
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Ave. I think you are the only person I have come across who regularly uses retorts instead of a regular condenser.
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ave369
Eastern European Lady of Mad Science
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I use both. Because:
1: the Batparatus needs both a retort and a Liebig. Otherwise very hot vapors will destroy the Liebig.
2: because for some things, Liebig is overkill.
3: retorts have a use outside distillation. They can be used, for example, to dissolve HCl/NH3 in water without funnel traps because their noses are
so wide.
4: I'm not rich enough for a full ground glass distilling setup. My regular distilling setup uses rubber bungs and PTFE loops. A one-piece retort is
more reliable than that.
[Edited on 15-12-2015 by ave369]
Smells like ammonia....
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karlos³
International Hazard
Posts: 1520
Registered: 10-1-2011
Location: yes!
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Mood: oxazolidinic 8)
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Solvents!
Litrewise MTBE, DCM, Acetone, iPrOH, MeCN, n-Butylacetate, CHCl3, DMF, Ac2O!
Stocking the cabinet
Also bought some reagents, Hexamine, NaH, Succinimide, and, most interesting, a gram luminol!
Could have synthed it myself, but it was only a few bucks so I decided to get it and do some show experiments with it.
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JJay
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Registered: 15-10-2015
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I ordered a kilogram of sodium bromide for making elemental bromine and general bromination purposes.
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mayko
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Location: Carrboro, NC
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Mood: anomalous (Euclid class)
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It's the start of the semester, and the university stockrooms are cycling their inventory and there are piles of stuff lying around with cardboard
signs reading FREE! This time around, it's volumetric flasks large and small 
al-khemie is not a terrorist organization
"Chemicals, chemicals... I need chemicals!" - George Hayduke
"Wubbalubba dub-dub!" - Rick Sanchez
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diggafromdover
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Ordered a kilo of Calcium Carbide "Vole Expeller" on EBay. I have visions of being Bill Murray plotting to kill gophers as an agent of the UN.
Enjoying second childhood with REAL chemistry set.
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NedsHead
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Found some N2O canisters today
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diggafromdover
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The carbide arrived from Deutschland. Good tech grade gravel like lumps. 13 days from payment to my hot little hands. mikonqs appears to be a fine seller.
Enjoying second childhood with REAL chemistry set.
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JJay
International Hazard
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Registered: 15-10-2015
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I ordered a 500 CFM fan for my hood
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mr.crow
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Aliexpress is the weirdest website. I found a store selling bikinis, gay men's underwear, dildos, penis pumps (not my bag, baby!) and laboratory
glassware. http://www.aliexpress.com/store/315936
I love China
Double, double toil and trouble; Fire burn, and caldron bubble
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Herr Haber
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| Quote: Originally posted by diggafromdover | | The carbide arrived from Deutschland. Good tech grade gravel like lumps. 13 days from payment to my hot little hands. mikonqs appears to be a fine seller. |
I dont know what price you pay but here among the community of cavers, urban explorers etc it sales around 3,50 to 5,50 /kg.
Most prices I've seen in eBay are way above that.
Of course, it's tech grade! So if you want to use it for chemistry and not lighting you'll have to purify the gas somehow depending on your intent.
I think last time several spelunling clubs, cataphiles and other association got together we ordered around 700 tons from China. Which seeems a lot,
but when in a troglodyte village everyone wants his own 100kg barrel, it doesnt last long.
Before that, the supplier was in Romania but seems to have stopped production. Good, I found some Arsenic in one of their batches (used for
metallurgical purposes but it's still a weird impurity tough a nice addition to my elements collections)
LED's are why its harder and harder go get CaC2
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JJay
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Potassium permanganate, potassium dichromate, barium carbonate.
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NedsHead
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Picked up my order today, 5ltr of sulphuric acid for Tdep and myself and a fresh bottle of ammonia
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Tdep
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Location: Laser broken since Feb 2020 lol
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Mood: PhD is done! It isn't good but it's over lol
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Woo that's me! I'm very excited for some clean and clear sulphuric acid. Although I think I might miss being able to blame all the problems in a
synthesis on the black mo-fo dye. Thanks for picking that up, will let you know when i'm coming soon NedsHead
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j_sum1
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Arrived the other day -- a sample of fluorine for the element collection.
Well, at least something to represent fluorine -- a nice collection of antozonite crystals: which are pretty much the only way that F2 occurs
naturally. The crystals are dark, almost black and cuboid. Not possible to actually see the fluorine of course but I am told that If I crush some of
the crystals up I should be able to smell them. The mineral is also known as stinkspat for that reason.
I'll put some photos in pretty pictures at some stage.
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Maker
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2 litres each of acetone, IPA, DCM and HCl and 1 litre each of toluene, ethyl acetate, petroleum ether and phosphoric acid.
Got it from Darrant chemicals in the UK, they have decent pricing and will sell to individuals.
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CharlieA
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KMnO4; K3(Fe[CN6]); Sn; KBrO3; and a small lab frame from rotocon.com.
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woelen
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| Quote: Originally posted by j_sum1 | Arrived the other day -- a sample of fluorine for the element collection.
Well, at least something to represent fluorine -- a nice collection of antozonite crystals: which are pretty much the only way that F2 occurs
naturally. The crystals are dark, almost black and cuboid. Not possible to actually see the fluorine of course but I am told that If I crush some of
the crystals up I should be able to smell them. The mineral is also known as stinkspat for that reason. |
True samples of fluorine probably are not possible. Some sellers (e.g. on eBay) sell mixes of 1 part of F2 and 2 parts of He in
glass ampoules, but I doubt that these ampoules contain any F2 after a few months of storage. So, indeed, for fluorine you need something which
represents fluorine. I have made a different choice than you. You chose for a comnpound, containing fluorine, I chose for something, which looks like
fluorine. I made an ampoule with perfectly dried Cl2 to which some perfectly dried NO2 is added, so that it has a yellow/brown appearance at room
temperature and then I diluted this with air, so that only a pale color remains. I labeled the ampoule as "fluorine lookalike".
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j_sum1
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As I understand it, decay of uranium within the crystal matrix leaves tiny amounts of free fluorine within voids in the crystal.
https://en.wikipedia.org/wiki/Antozonite
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