Sciencemadness Discussion Board

Digg new periodictable.com

Waffles - 12-11-2007 at 10:53

http://digg.com/general_sciences/periodictable_com_Beautiful...

Take a look at the new site, masterfully redone by Theodore Gray. And yes, 24,000 decay chains all shown graphically :). And please digg it!

DrP - 13-11-2007 at 01:40

That's really nice!

Phosphor-ing - 13-11-2007 at 06:08

I really like the spin option on the images of the elements.

DrP - 15-11-2007 at 03:05

I'd love the coffe table - but I don't have a spare £5G to spend on one. It's an element collection set in resin and made into a coffee table - beautiful!

http://www.element-collection.com/html/coffee_table.html

Engager - 17-12-2007 at 19:21

Here are some photos of my element collection (many samples are self made), it's not a full version but contains many interesting elements.

Na, K, Rb:



Cs, Be, Mg:



Ca, Sr, Ba:



Sc, Y, Ce:



Ti, Zr, Hf:



V, Nb, Ta:



Cr, Mo, W:



Mn, Re, Ni:



Co, Cu, Ag:



Au, Cd, Hg:



Ga, In, Tl:



Si, Sn, Pb:



P, Sb, Bi:



S, Se, Te:



Cl, Br, I:



B, Xe:



Nd, Sm, Gd:



Er, Tm, Lu:

12AX7 - 17-12-2007 at 19:31

Is that actually liquid Xe? What's the critical temperature and pressure on that stuff?!

Tim

MagicJigPipe - 17-12-2007 at 19:58

Xe phase diagram. Surprisingly hard to find more detailed ones.

xephase.jpg - 10kB

Engager - 18-12-2007 at 05:48

Quote:
Originally posted by 12AX7
Is that actually liquid Xe? What's the critical temperature and pressure on that stuff?!

Tim


Yes it is, pressure in ampoule is 72 atm, so then temperature is lower then 16C xenon liquifies, then sample is heated above this temperature xenon goes to critical state.

12AX7 - 18-12-2007 at 08:13

Awesome!

What's it look like slightly warmer? Does the liquid disappear when you hold it in your hand too long? Does it become an homogeneous supercritical fluid, sort of with the properties of both liquid and gas?

Tim

Engager - 18-12-2007 at 08:35

Quote:
Originally posted by 12AX7
Awesome!

What's it look like slightly warmer? Does the liquid disappear when you hold it in your hand too long? Does it become an homogeneous supercritical fluid, sort of with the properties of both liquid and gas?

Tim


Then heated, border between liquid and gas becomes blurry and suddenly dissapears completely.

Fleaker - 18-12-2007 at 11:40

Do you make those ampoules Engager, or was it a friend of yours? I'm really impressed with them and I'd like to buy one.

It would be a nuisance to have to make my own and I don't have any pressurized xenon, nor do I want to shell out 1000 bucks to get 20 some liters of it. I know we had a thread here about liquefying chlorine gas; easy enough with a lecture bottle, LN2, and some certain glass elements.

Engager - 18-12-2007 at 11:46

Quote:
Originally posted by Fleaker
Do you make those ampoules Engager, or was it a friend of yours? I'm really impressed with them and I'd like to buy one.

It would be a nuisance to have to make my own and I don't have any pressurized xenon, nor do I want to shell out 1000 bucks to get 20 some liters of it. I know we had a thread here about liquefying chlorine gas; easy enough with a lecture bottle, LN2, and some certain glass elements.


Actualy this ampoule is not self made, i got it as exchange with guy who runs site www.periodictable.ru (remember to click GB flag at the top right corner to switch to english language); he works in Swiss, and as far as i know he sells this ampoules on eBay or may be in some other place, you should contact him and discuss details.

[Edited on 18-12-2007 by Engager]

woelen - 18-12-2007 at 12:39

I also have quite a nice element collection already. I am still missing some of the most expensive metals, black phosphorus, uranium and rubidium.

http://woelen.scheikunde.net/science/chem/compounds/index2.h...

I especially like my halogen samples and the gas discharge tubes of most gaseous elements. I also have such a nice xenon sample, as mentioned by engager. Just click on the Xe-element in the periodic table chart and scroll down to see detailed images of this sample. It really is beautiful.

contrived - 18-12-2007 at 16:54

Really nice period table plus plus plus! My new background.

MagicJigPipe - 18-12-2007 at 17:35

Hey, that's a good idea. All allotropes of each element. Like C nanotubes and bucky balls.