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Topic: Chemical Formula of..  (Read 8982 times)

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Offline analyzer

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Chemical Formula of..
« on: April 05, 2009, 09:16:03 AM »


I am willing to know the Chemical Formula & Type of the following crystal, i.e. to which Family it belongs to; 

Structure : Cubic

Habit : Octahedral

Color : White

RI : More than 1.6

M.P. :  25-35 Degrees Celsius

Hardness : 1-2 on Mohs Scale

Solubility : Soluble in Water

Diaphaneity : Transparent

Thanks in Advance.


Offline sjb

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Re: Chemical Formula of..
« Reply #1 on: April 05, 2009, 09:20:21 AM »
Could be all sorts of things, there isn't really that much to go on - do you have any other data for this compound?

S

Offline analyzer

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Re: Chemical Formula of..
« Reply #2 on: April 05, 2009, 09:28:43 AM »

Actually it looks like Salt, the size of each piece is very small & it smells quite funny  :) & its also not toxic.

What are the other possible compounds with nearly the same properties?

Thank You


Offline Arkcon

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Re: Chemical Formula of..
« Reply #3 on: April 05, 2009, 09:51:22 AM »

Actually it looks like Salt,

It does not seem likely that you have native halite, sodium chloride, given this property:

Quote
M.P. :  25-35 Degrees Celsius

Also, this particular data:

Quote
the size of each piece is very small & it smells quite funny  :) & its also not toxic.

Isn't particularly useful.  Perhaps you have another native hydrated salt, like gypsum, that releases it's water of hydration on heating, and ends up dissolving in it?

Basically, there should be tables, that you can find online, or in a geology text, that will help you identify common rock samples  If you're stuck, it could be that some of your data is wrong.  Not toxic?  How do you know?  Please don't try to prove this rigorously, personally, because we don't need you to die, to identify a rock.  If it's small, maybe you're mistaken about the crystal structure?
Hey, I'm not judging.  I just like to shoot straight.  I'm a man of science.

Offline analyzer

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Re: Chemical Formula of..
« Reply #4 on: April 05, 2009, 10:11:47 AM »


I tried searching on google for such a chart but unfortunately I have not been successful,

I'll be thankful to know if you have a current online reference.

Offline macman104

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Re: Chemical Formula of..
« Reply #5 on: April 05, 2009, 10:34:40 AM »
I'm more curious how you know that it is non-toxic...

Offline analyzer

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Re: Chemical Formula of..
« Reply #6 on: April 05, 2009, 11:17:47 AM »


The seller told me that this material is Not Toxic but unfortunately we are not in contact at the moment to make sure what the chemical composition is  :)

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