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Author Topic:   my nitric
sharky
Frequent Poster 		posted September 06, 1999 09:14 PM     Click Here to See the Profile for sharky   Click Here to Email sharky     
I did the method of distilling nitric acid from sulfuric and KNO3 with the two bottles taped to each other.

But... my nitric acid is greenish yellow....
is this normal?

sharky

Feticidal Fantasy
Frequent Poster 		posted September 07, 1999 12:20 PM     Click Here to See the Profile for Feticidal Fantasy   Click Here to Email Feticidal Fantasy     
The gas that goes inbetween the two bottles is suppost to be a brownish-redish color.

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sharky
Frequent Poster 		posted September 07, 1999 06:50 PM     Click Here to See the Profile for sharky   Click Here to Email sharky     
Yes, the fumes were redish, but when it condensed in the other bottle it was a greenish liquid.
I put it on a penny and it started bubbling and made alot of NO2 and a geen-blue liquid was left. I assume it is some sort of nitric acid but I don't know why its green. Any ideas?


sharky

megalomania
Administrator 		posted September 14, 1999 06:26 AM     Click Here to See the Profile for megalomania   Click Here to Email megalomania     
The acid can take on a yellowish tinge with impurities presant, probably from not having an all glass set up. You didnt add the copper to all the acid did ya?

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sharky
Frequent Poster 		posted September 14, 1999 09:28 PM     Click Here to See the Profile for sharky   Click Here to Email sharky     
No, I just used copper to test and see if it was nitric acid....
I put a couple drops on a penny and it bubbled and made NO2.

sharky

mosaz
Frequent Poster 		posted September 21, 1999 02:54 PM     Click Here to See the Profile for mosaz   Click Here to Email mosaz     
I don't know if this is right. But my chemistry book say that con. nitric acid is very light sensitive. And when the air is wet and came in contact with the acid, the acid turns yellow brown. Go and try the trick with the urea and the dry air, perhaps this help. I hope this is right and can help you a bit.

All times are ET (US)

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