Sciencemadness Discussion Board

Pretty Pictures (2)

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Bedlasky - 7-5-2019 at 19:04

Hi.

There is few photos of my crystals. The blue crystals are CuSO4.5H2O - the bigger one grew one year, maybe longer. They grew up on copper wire - it wasn't the best option, but they were my first crystals. First was gift for friend and second will be for my girlfriend :).

The violet one in transparent crystal is K(Al,Cr)(SO4)2.12H2O. It is coated by potassium alum. I made it by mixing potassium alum and chrome alum in ratio 10:1. Another gift for my friend.

The pale violet crystals are NH4Fe(SO4)2.12H2O. This two crystals are growing really fast - they are one day old and still growing in solution.

The pale violet and rusty crystals in bowl are also ammonium-ferric sulfate. After I pulled out these crystals out of solution, they were rusty (because of colour of solution) but after a some time were pale violet. Later their colour disappeared and after few hours they were rusty. This compound really quickly loses water.

The green crystals are CuCl2.2H2O. They are currently turquoise.

CuSO4 3.jpg - 36kB CuSO4 4.jpg - 55kB CuSO4 1.jpg - 281kB CuSO4 2.jpg - 240kB K(Al,Cr)(SO4)2.jpg - 382kB NH4Fe(SO4)2.jpg - 213kB

CuCl2.jpg - 512kB NH4Fe(SO4)2 - rezavy.jpg - 386kB NH4Fe(SO4)2 - fialovy.jpg - 498kB

Ubya - 8-5-2019 at 08:38

the potassium-chromium crystal in a crystal is really cool:D

Bedlasky - 8-5-2019 at 23:29

Ubya: Thanks :).

Ammonium-ferric sulfate growing up very fast! I just love these crystals :D. Here is few photos from this morning.

IMG_20190509_070319.jpg - 2.1MB IMG_20190509_070332.jpg - 2.2MB

[Edited on 9-5-2019 by Bedlasky]

DraconicAcid - 10-5-2019 at 12:19

Crude cinnamic acid, basically solidified blobs of acid mixed with cinnamaldehyde, with crystals of pure acid growing from them.

CinnUrchin1.jpg - 57kB

j_sum1 - 26-5-2019 at 02:51

Running some tests on an otc product to figure out what might work for an extraction.

IMG20190526203944.jpg - 2.5MB

fusso - 26-5-2019 at 02:53

@jsum so what exactly are you extracting? And why are some yellow?

[Edited on 190526 by fusso]

j_sum1 - 26-5-2019 at 05:57

I am being deliberately vague because I think I have found something cool and I would love to solve it myself. It is an otc product based on an ionic liquid with a somewhat oily consistency and unknown other ingredients. My tests show that it forms emulsions easily.

Phthaloblue - 26-5-2019 at 12:07

Some nice FeSO4 crystals from a few years ago, made from steel wool and drain cleaner sulfuric acid as per this link. Alas, they're all brown and spoiled now. Picture has been edited to improve quality (brightness/contrast).

Eventually I should save them by redissolving in dilute sulfuric acid, filtering off the crud, reducing the Fe3+ with a little extra iron, and making some Mohr's salt ((NH4)2Fe(SO4)2·6H2O)

feso4_1.jpg - 117kB

[Edited on 5/26/2019 by Phthaloblue]

oberkarteufel - 10-6-2019 at 23:57

CoCl2 + isopropanol + water

CoCl2.jpg - 113kB

Mabus - 7-7-2019 at 08:00

Quote: Originally posted by Phthaloblue  
Some nice FeSO4 crystals from a few years ago, made from steel wool and drain cleaner sulfuric acid as per this link. Alas, they're all brown and spoiled now. Picture has been edited to improve quality (brightness/contrast).

Eventually I should save them by redissolving in dilute sulfuric acid, filtering off the crud, reducing the Fe3+ with a little extra iron, and making some Mohr's salt ((NH4)2Fe(SO4)2·6H2O)


When I recrystallized my FeSO4x7H2O, I washed the crystals with some isopropanol then left them to dry. Even after 6 months they still haven't turned brown.

Abromination - 8-7-2019 at 15:21

No mercury present, but the thought is beautiful.
This will make a nice addition to my element collection.


DE12CCDF-AFE0-4859-8784-2957FA3BAAEE.jpeg - 1.9MB

A failed attempt at Copper Peroxide yielded this

Σldritch - 7-8-2019 at 11:48

I am at a loss how to make the synthesis work in water. It hates being filtered and decomposes really quick. Make it with too concentrated peroxide and it goes whoosh. At least it looks pretty this way. Some of the desired product can be seen on the glass rod where it escaped the water.

IMG_20190807_212443.jpg - 262kB

[Edited on 7-8-2019 by Σldritch]

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