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

Printable Version  
 Pages:  1  ..  54    56
Author: Subject: Pretty Pictures (2)
fluorescence
National Hazard
****




Posts: 267
Registered: 11-11-2013
Member Is Offline

Mood: So cold outside

[*] posted on 20-4-2017 at 07:24


Wow nice, are they transparent to some extend ? On the photo it looks like you might be able to see through them a bit ?



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




Posts: 238
Registered: 6-12-2013
Location: 'straya
Member Is Offline

Mood: :)

[*] posted on 21-4-2017 at 03:15


Quote: Originally posted by fluorescence  
Wow nice, are they transparent to some extend ? On the photo it looks like you might be able to see through them a bit ?
Thanks. Ill check and let you know, as i can't remember how they were in person.
View user's profile View All Posts By User
CrystalCage
Harmless
*




Posts: 7
Registered: 22-11-2015
Member Is Offline


[*] posted on 24-4-2017 at 08:34


Made some CuCa(CH3COO)4.6H2O
Really hard to make, 4:1 Ca:Cu ratio does not always work, several failed attempts has been made.
The solution is quite supersaturated.. Need to dilute again the mother liquor to obtain the seed crystals.

IMG_20170425_003316.jpg - 2MB
View user's profile View All Posts By User
The Volatile Chemist
International Hazard
*****




Posts: 1896
Registered: 22-3-2014
Location: 'Stil' in the lab...
Member Is Offline

Mood: Copious

[*] posted on 24-4-2017 at 12:33


HeYBrO and Crystalcage, cool copper crystals! Copper Calcium Acetate is definitely on my todo list. And HeYBrO's would be too if I had Bipy....:/



My write-ups are on here...
http://www.MeltThe.Ga or http://ptp.x10.mx
View user's profile Visit user's homepage View All Posts By User
fluorescence
National Hazard
****




Posts: 267
Registered: 11-11-2013
Member Is Offline

Mood: So cold outside

[*] posted on 3-5-2017 at 13:06


Well this is not really a photo but I still love the structure. Had to explain why hydrates PdO can be dehydrated for YouTube and compared it to the dehydration of CaCl2x6H2O when I found out that for some reason there is no good picture of the Hexahydrate anywhere on the web which I found really sad. So I took the crystal structure data from the literature and simulated the tricapped trigonal prismatic structure again.

You can see how each Ca has a coordination number of 9. Along the axis many of these stack on their triangular surfaces so you end up with 6/2 + 3 caps per Ca which equals 6 H2O and thus is called hexahydrate.

As you can see there is no Chloride to be seen. I didn't add them to make it easier to see but they are surrounding this structure with hydrogen bonds towards the water hydrogens. If you want to dehydrate that thermally there is no real contact between Ca and Cl which is why other compounds form as well.

I find this structure really nice because you don't expact something like that for a simple Calcium :D

CaCl2.jpg - 201kB




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




Posts: 1019
Registered: 18-10-2007
Location: Rockin the suburbs
Member Is Offline

Mood: Just like Quiet Riot did

[*] posted on 7-5-2017 at 21:58


CrO3, the largest crystal is ~10mm across.

IMG_1616.JPG - 1.3MBIMG_1614.JPG - 1.3MB




Fuck the rainbow bridge, I miss Sweetie.
View user's profile View All Posts By User
JJay
International Hazard
*****




Posts: 1879
Registered: 15-10-2015
Location: experimenting
Member Is Offline

Mood: experimental

[*] posted on 7-5-2017 at 22:17


Are you sure that is CrO3? I thought the crystals looked like needles....



Check out my new YouTube channel: Extreme Red Cabbage
View user's profile View All Posts By User
Amos
International Hazard
*****




Posts: 1110
Registered: 25-3-2014
Location: Yes
Member Is Offline

Mood: No

[*] posted on 8-5-2017 at 11:02


Tried my hand at synthesizing xanthopurpurin a little while ago and my first sample of purified material crystallized in a strange, but very pretty way.



IMG_20170508_143558762.jpg - 1.6MB
View user's profile View All Posts By User
MrHomeScientist
International Hazard
*****




Posts: 1298
Registered: 24-10-2010
Location: Flerovium
Member Is Offline


[*] posted on 8-5-2017 at 12:39


Wow that's beautiful! That would make a great desktop background.
View user's profile Visit user's homepage View All Posts By User
Geocachmaster
Hazard to Self
**




Posts: 76
Registered: 5-3-2016
Location: Maine, USA
Member Is Offline


[*] posted on 9-5-2017 at 12:33



I had a concentrated sodium sulfate solution sitting in a beaker on the bench for a few days. When I checked the lab today I noticed some very beautiful crystals, this was the best one.



IMG_0828.JPG - 1.2MB IMG_0830.JPG - 1.2MB IMG_0833.JPG - 1.5MB IMG_0838.JPG - 1.2MB
View user's profile View All Posts By User
The Volatile Chemist
International Hazard
*****




Posts: 1896
Registered: 22-3-2014
Location: 'Stil' in the lab...
Member Is Offline

Mood: Copious

[*] posted on 16-5-2017 at 17:13


Nice crystal! To be honest that's one thing ive never really tried to crystallize, I'll have to try it. Was attempting to grow epsom salt crystals but accidentally left it on the hot plate the other day...now I have some nice anhydrous epsom salt...



My write-ups are on here...
http://www.MeltThe.Ga or http://ptp.x10.mx
View user's profile Visit user's homepage View All Posts By User
Justin Blaise
Hazard to Self
**




Posts: 54
Registered: 5-10-2011
Location: Parts Unknown
Member Is Offline


[*] posted on 17-5-2017 at 20:00


Panache, how did you crystallize that CrO3?
View user's profile View All Posts By User
fluorescence
National Hazard
****




Posts: 267
Registered: 11-11-2013
Member Is Offline

Mood: So cold outside

[*] posted on 20-5-2017 at 06:14


Beautiful color :D

[Os(Thiourea)6]3-

TEST.jpg - 60kB




View user's profile View All Posts By User
NeonPulse
National Hazard
****




Posts: 330
Registered: 29-6-2013
Location: The other end of the internet.
Member Is Offline

Mood: thinking outside the box...

[*] posted on 24-5-2017 at 22:03


Some potassium chloride crystals slowly grown from water.

IMG_3349.JPG - 639kBIMG_3350.JPG - 557kB




Where there is a will
there is a way.
View user's profile View All Posts By User
 Pages:  1  ..  54    56

  Go To Top