Sciencemadness Discussion Board
Not logged in [Login - Register]
Go To Bottom

Printable Version  
 Pages:  1    3  ..  56
Author: Subject: Pretty Pictures (2)
bfesser
Resident Wikipedian
*****




Posts: 2114
Registered: 29-1-2008
Member Is Offline


[*] posted on 26-9-2013 at 12:21
Pretty Pictures (2)


Pretty Pictures (1) has been one of the most popular and certainly one of the prettiest topics on the forum. After 40 pages, however, it's time to start a new thread. [Certain forum features start to become unwieldy.]



To start things off, here are a couple photos from Wikimedia that are just too pretty not to share:

crystalline gold crystalline silver
Gold Silver




View user's profile View All Posts By User
kristofvagyok
International Hazard
*****




Posts: 659
Registered: 6-4-2012
Location: Europe
Member Is Offline


[*] posted on 26-9-2013 at 15:27


I know that these pictures have been posted, but for silver, I should reply with silver!




Something else: floating sodium balls in dioxane:




I have a blog where I post my pictures from my work: http://labphoto.tumblr.com/
-Pictures from chemistry, check it out(:

"You can’t become a chemist and expect to live forever."
View user's profile Visit user's homepage View All Posts By User
Oscilllator
International Hazard
*****




Posts: 645
Registered: 8-10-2012
Location: The aqueous layer
Member Is Offline


[*] posted on 27-9-2013 at 22:00


Here are a couple of my own:
Copper acetate, a copper salycilic acid complex (posted somewhere else aswell), a copper tetraamine complex and a steel bar I left in my forge a little to long

I shall also take this opportunity to once again complain about the image size limits :mad:

IMG_20130915_150203.jpg - 188kBIMG_20130918_143512.jpg - 142kBIMG_20130926_123416.jpg - 235kBIMG_20130926_151245.jpg - 90kB




View user's profile View All Posts By User
Hegi
Hazard to Others
***




Posts: 114
Registered: 27-9-2013
Member Is Offline


[*] posted on 27-9-2013 at 22:22
Potassium ferrioxalate


I´m new a newcomer here, so hope that I will not screw up anything with adding this post. Few weeks ago I was trying to make my own iron complex. This is the final product - potassium ferrioxalate. The size of the crystals is about 3-4 mm. :cool:

sm.jpg - 142kB
View user's profile Visit user's homepage View All Posts By User
Oscilllator
International Hazard
*****




Posts: 645
Registered: 8-10-2012
Location: The aqueous layer
Member Is Offline


[*] posted on 27-9-2013 at 22:36


Very nice Hegi! How did you make your ferrioxalate?

Welcome to science madness!




View user's profile View All Posts By User
Hegi
Hazard to Others
***




Posts: 114
Registered: 27-9-2013
Member Is Offline


[*] posted on 27-9-2013 at 23:06


Quote: Originally posted by Oscilllator  
Very nice Hegi! How did you make your ferrioxalate?

Welcome to science madness!


Hi, I used iron(III) chloride hexahydrate and potassium hydroxide to make iron(III) hydroxide, then i dissolved it in oxalic acid - this was solution A of ferric oxalate. Then I separately prepared solution B of potassium oxalate. I mixed it together, heated it up, partly evaporated the solvent (water) and let it crystallize overnight ;)
View user's profile Visit user's homepage View All Posts By User
Oscilllator
International Hazard
*****




Posts: 645
Registered: 8-10-2012
Location: The aqueous layer
Member Is Offline


[*] posted on 27-9-2013 at 23:41


Nice, you didn't use any hydrogen peroxide? lots of methods on the net use this to ensure the iron remains iron(III) and not iron(II).




View user's profile View All Posts By User
Hegi
Hazard to Others
***




Posts: 114
Registered: 27-9-2013
Member Is Offline


[*] posted on 27-9-2013 at 23:48


Quote: Originally posted by Oscilllator  
Nice, you didn't use any hydrogen peroxide? lots of methods on the net use this to ensure the iron remains iron(III) and not iron(II).


I forgot to mention it, I added few drops of 33% H2O2 :)

Maybe you´ll like this one too. 5 months growing copper(II) sulfate.

cuso42.jpg - 105kB
View user's profile Visit user's homepage View All Posts By User
kristofvagyok
International Hazard
*****




Posts: 659
Registered: 6-4-2012
Location: Europe
Member Is Offline


[*] posted on 29-9-2013 at 13:57




A really easy, but awesome looking experiment: dissolving some fluorescein isothiocyanate in water under UV light.

[Edited on 29-9-2013 by kristofvagyok]




I have a blog where I post my pictures from my work: http://labphoto.tumblr.com/
-Pictures from chemistry, check it out(:

"You can’t become a chemist and expect to live forever."
View user's profile Visit user's homepage View All Posts By User
Hegi
Hazard to Others
***




Posts: 114
Registered: 27-9-2013
Member Is Offline


[*] posted on 30-9-2013 at 09:46


Quote: Originally posted by kristofvagyok  
A really easy, but awesome looking experiment: dissolving some fluorescein isothiocyanate in water under UV light.

[Edited on 29-9-2013 by kristofvagyok]


nice one man, what about exposure settings and used equipment?

Btw. This weekend I tried to make a crystal of ammonium iron(III) sulfate and it turned out to be beautifully and almost perfectly shaped.




[Edited on 30-9-2013 by Hegi]

ammonium-ironIII-sulfate-dodecahydrate-3.jpg - 316kB

[bfesser: removed quoted image]

[Edited on 30.9.13 by bfesser]
View user's profile Visit user's homepage View All Posts By User
Bezaleel
Hazard to Others
***




Posts: 213
Registered: 28-2-2009
Member Is Offline

Mood: equilibrium

[*] posted on 3-10-2013 at 01:38


Ammonium Iron(III) sulphate is one of the substances that formes large and well-shaped cystals very easily, as you have proved yourself. It is sensitive to dry air though. Be careful, or some yellow powder will form on the cystal.

Is the crystal really that brownish, or is that just due to lighting conditions? The one I once made was much like light coloured amethyst.
View user's profile View All Posts By User
Hegi
Hazard to Others
***




Posts: 114
Registered: 27-9-2013
Member Is Offline


[*] posted on 3-10-2013 at 10:37


Quote: Originally posted by Bezaleel  
Ammonium Iron(III) sulphate is one of the substances that formes large and well-shaped cystals very easily, as you have proved yourself. It is sensitive to dry air though. Be careful, or some yellow powder will form on the cystal.

Is the crystal really that brownish, or is that just due to lighting conditions? The one I once made was much like light coloured amethyst.


It´s just due to lighiting yes, it was captured few minutes after the sunrise.. I haven´t known about yellow powder forming on the crystal so now it´s completely yellow -,- what is that yellow powder and how should I get the rid of it or ensure the crystal against forming it on its surface? .. o.O
View user's profile Visit user's homepage View All Posts By User
bfesser
Resident Wikipedian
*****




Posts: 2114
Registered: 29-1-2008
Member Is Offline


[*] posted on 3-10-2013 at 10:38


Keep it in a sealed container to prevent loss of water (efflorescence ) or lacquer the surface, as some mineral collectors do. What you have is a crystal of ammonium iron(II) sulfate hexahydrate , the powder he mentions would be the anhydrous salt.

[Edited on 3.10.13 by bfesser]




View user's profile View All Posts By User
Mailinmypocket
International Hazard
*****




Posts: 1340
Registered: 12-5-2011
Member Is Offline


[*] posted on 3-10-2013 at 11:14


Vanillylidenacetone, from a micro synthesis, m.p. was ~123c, not bad! Pretty color :)



Edit: Crap... how do we re-size images? This is way too big.

[Edited on 3-10-2013 by Mailinmypocket]
View user's profile View All Posts By User
bismuthate
International Hazard
*****




Posts: 803
Registered: 28-9-2013
Location: the island of stability
Member Is Offline

Mood: self reacting

[*] posted on 3-10-2013 at 11:33


http://ts4.mm.bing.net/th?id=H.4696582266094371&w=216&h=188&...
awesome osmium picture (sorry i can't paste the picture on the forum with my kindle)




I'm not a liar, I'm just an enthusiastic celebrant of opposite day.
I post pictures of chemistry on instagram as bismuthate. http://iconosquare.com/bismuthate
or this viewer if you don't have an instagram (it sucks though) http://web.stagram.com/n/bismuthate
View user's profile Visit user's homepage View All Posts By User
Wizzard
National Hazard
****




Posts: 337
Registered: 22-3-2010
Member Is Offline


[*] posted on 3-10-2013 at 13:45


Bismuthate - That crystal was made by my friend Ivan Timohkin, from periodictable.ru . I have some high-res of that, if his site doesn't.
View user's profile View All Posts By User
bismuthate
International Hazard
*****




Posts: 803
Registered: 28-9-2013
Location: the island of stability
Member Is Offline

Mood: self reacting

[*] posted on 3-10-2013 at 14:03


thats awesome! does he have an SM account?



I'm not a liar, I'm just an enthusiastic celebrant of opposite day.
I post pictures of chemistry on instagram as bismuthate. http://iconosquare.com/bismuthate
or this viewer if you don't have an instagram (it sucks though) http://web.stagram.com/n/bismuthate
View user's profile Visit user's homepage View All Posts By User
bfesser
Resident Wikipedian
*****




Posts: 2114
Registered: 29-1-2008
Member Is Offline


[*] posted on 4-10-2013 at 04:22


Quote: Originally posted by Mailinmypocket  
Vanillylidenacetone, from a micro synthesis, m.p. was ~123c, not bad! Pretty color :)
. . .
Edit: Crap... how do we re-size images? This is way too big.
Mailinmypocket, that's a beautiful product! Very nice job sealing the ampoule (Pasteur pipette?); any chance you could post a tutorial—or a video—on how you do that? I use pre-made ampoules when necessary, but I'm terrible at sealing them. Every attempt I've ever made at glassblowing has been an utter failure. I'm a master at pulling TLC capillaries from melting point tubes, but anything beyond that is beyond me...

P.S. The image size is acceptable (doesn't stretch the page horizontally), but I can thumbnail it for you if necessary. It's best to upload images as attachments.

[edit] P.P.S. I'll try again to ship the mpt. tubes out later today or tomorrow.

[Edited on 4.10.13 by bfesser]




View user's profile View All Posts By User
Mailinmypocket
International Hazard
*****




Posts: 1340
Registered: 12-5-2011
Member Is Offline


[*] posted on 4-10-2013 at 07:00


Thanks! I tried to scale-up the reaction to have enough vanillylidenacetone to allow me to do a hydrogenation reaction to zingerone. Unfortunately something went awry with the condensation, it didn't work and I haven't tried again.

The ampoule is actually just made of a segment of slightly larger than usual glass tubing (7mm). I have nothing to really do today so I would be happy to post a step by step photo guide on making these. I find it easier to make nice solid ampoules with tubing rather than with Pasteur pipettes actually.

Mini Photo Guide


[Edited on 4-10-2013 by Mailinmypocket]
View user's profile View All Posts By User
Mailinmypocket
International Hazard
*****




Posts: 1340
Registered: 12-5-2011
Member Is Offline


[*] posted on 5-10-2013 at 11:56


Antimony, so shiny!
View user's profile View All Posts By User
PeeWee2000
Hazard to Self
**




Posts: 58
Registered: 2-7-2013
Location: Michigan
Member Is Offline


[*] posted on 5-10-2013 at 19:10


Some big old DMSO crystals :O!

DSCN0383.jpg - 57kB




“Everything is relative in this world, where change alone endures.”

― Leon Trotsky
View user's profile View All Posts By User
mr.crow
International Hazard
*****




Posts: 876
Registered: 9-9-2009
Location: Canada
Member Is Offline

Mood: 0xFF

[*] posted on 5-10-2013 at 20:05


Quote: Originally posted by Mailinmypocket  
Antimony, so shiny!


Ohhh beautiful! Wish I had that for my element collection :)




Double, double toil and trouble; Fire burn, and caldron bubble
View user's profile View All Posts By User
Hegi
Hazard to Others
***




Posts: 114
Registered: 27-9-2013
Member Is Offline


[*] posted on 6-10-2013 at 01:25



View user's profile Visit user's homepage View All Posts By User
froot
National Hazard
****




Posts: 336
Registered: 23-10-2003
Location: South Africa
Member Is Offline

Mood: refluxed

[*] posted on 7-10-2013 at 00:51


Quote:

Ohhh beautiful! Wish I had that for my element collection :)


I got this piece from a local solder manufacturer and it was cheap. These guys also do pewter alloys and use it for that, a good chance that solder companies in your area will have some for you. They might also have samples of Pb, Zn, Bi, Cd and Sn to offer you and their purity is good.

photo.JPG - 130kB




We salute the improvement of the human genome by honoring those who remove themselves from it.
Of necessity, this honor is generally bestowed posthumously. - www.darwinawards.com
View user's profile View All Posts By User
Gooferking Science
Hazard to Self
**




Posts: 94
Registered: 17-7-2013
Location: Somewhere in Kansas, USA...
Member Is Offline

Mood: Tired of the system

[*] posted on 11-10-2013 at 08:43




IMG_2412.jpg - 100kB
Half neutralized bromine water solution gives this beautiful color gradation effect.

[Edited on 11-10-2013 by Gooferking Science]




Please check out my YouTube channel! www.youtube.com/user/gooferking
View user's profile Visit user's homepage View All Posts By User
 Pages:  1    3  ..  56

  Go To Top