Help identifying a chemical

[Mercedes Benzene]

I was looking at a chemical the other day, and I really want to identify it. Can anybody think of a pink crystalline chemical? And no, it was not the hydrate of Cobalt (II) Chloride. B)

Rep to the person who could suggest what it may be. B)

 

 

Edit: I should also open this up for other chemical quandaries! B)

[Jay-qu]

Rep to the person who could suggest what it may be. B)

 

From my understanding of metal ions Potassium ions can produce a lilac colour, I think a watered down crystal could make it appear pink.

[ronthepon]

Could be due to hydrated [math]Mn^{2+}[/math] ions.

[Turtle]

I was looking at a chemical the other day, and I really want to identify it. Can anybody think of a pink cystalline chemical?

 

Is 'cystalline' a chemical term or a typo of 'crystalline'? I searched earlier and found some pink salt, but I can't find it now. :shrug: Can you give a hint like where you saw it? :confused:

[Mercedes Benzene]

From my understanding of metal ions Potassium ions can produce a lilac colour, I think a watered down crystal could make it appear pink.

Could be due to Mn +2 hydrated ions.

 

Both are possiblities is suppose. I'm not sure though.

 

Is 'cystalline' a chemical term or a typo of 'crystalline'? I searched earlier and found some pink salt, but I can't find it now. Can you give a hint like where you saw it?

 

Hehe. Yes Turtle, I did mean "crystalline". The "r" will come in an edit. :confused: Anyway, I saw it in a school lab when I was delivering something for my chemistry teacher. I didn't get a chance to read the label on the vial because it was during the middle of class. The reason that I wish to identify it is because I once saw an experiment that made mention of a PINK chemical, and I would like to find that experiment again and try to perform it. I've been donig a lot of experiments lately with coordination complexes, and this "mystery experiment" was a coordination experiment.

This could imply that the pink chemical I'm in search of has a transition metal cation. It's still all speculation at this point.

If anyone can come up with a chemical name, I may be able to find the experiment again!

 

Thanks!

[mir]

I was looking at a chemical the other day, and I really want to identify it. Can anybody think of a pink crystalline chemical? And no, it was not the hydrate of Cobalt (II) Chloride. :eek_big:

Rep to the person who could suggest what it may be. :hihi:

Edit: I should also open this up for other chemical quandaries! :eek2:

 

The simple rule is: Green, blue and pink crystals is salts that contains water and is soluble in water.

 

Why does everyone assume that the crystals are inorganic? There is plenty of organic chemicals with a pink colour. Phenols as an example, have a variety of colours, due to small impurities.

[moo]

http://wvutoday.wvu.edu/news/page/2496/

 

Excerpt: "Manganese chloride is a pink crystalline solid that makes a pink solution when dissolved in water."

 

And googling for the following gives some possibilities:

 

+coordination +experiment +"manganese chloride"

 

moo

[mir]

We did an experiment into Cobolt chemistry, it failed totally. But we made pink crystals :eek_big:

[Mercedes Benzene]

Excerpt: "Manganese chloride is a pink crystalline solid that makes a pink solution when dissolved in water."

 

::Sigh:: That's the closest anyone has gotten, but these crystals I'm thinking of were very dark pink.

 

We did an experiment into Cobolt chemistry, it failed totally. But we made pink crystals

Again... close, but not as close as moo's.

[moo]

http://www.rsc.org/publishing/journals/DT/article.asp?doi=a908901b

"New supramolecular complexes of manganese(II) and cobalt(II) with nucleic bases.

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Compound 2 (pale pink crystals), when not filtered, over time disappears and gives rise to dark pink crystals of formula [Co(1-Mecyt)4][ClO4]2"

 

http://www.sigmaaldrich.com/catalog/search/SpecificationSheetPage/SIAL/403024

"Cobalt(II) acetate tetrahydrate

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DARK PINK CRYSTALLINE POWDER OR GRANULES"

 

 

These both use Cobalt(II), but am kinda shootin' in the dark here... :(

 

moo

[Mercedes Benzene]

These both use Cobalt(II), but am kinda shootin' in the dark here...

 

Well thank you very much for your support in my quest... but it looks as if I'll never be able to identify my mysterious compound. Hopefully I'll come accross the experiment again, and I'll be able to share with you guys. :(

[Jay-qu]

Dark is normally the permangenate ion.. but im sure you have already thought of that..

[Mercedes Benzene]

Dark is normally the permangenate ion.. but im sure you have already thought of that..

 

haha. Yes. I have already looked though multiple permanganate compounds.

Grrrr. This is really starting to bum me out.

[mir]

If it could help. Cobolt(II) acetate penta(?)hydrate is also pink.

 

If you heat it in a oven over night it becomes violet :)

[Jay-qu]

not a cobalt ion :)

 

Well I dont know where to go from now..

[ronthepon]

Now seriously, trying to find a chemical by it's colour is like finding a letter in a dictionary.

 

Can it be a complex ion? Can it be this or that in which oxidation state? Could it be an organic compound?

[Mercedes Benzene]

Can it be a complex ion?

 

I suppose it could be... but it was in a fairly large quantity when I saw it. I see no need for my school to have a large quantity of any complex laying around.