Sciencemadness Discussion Board

some greenish NaNT

QHarryQ - 29-11-2011 at 20:51

I synthesize some NaNT several days ago,as the following pictures shows——


DSCF2977.JPG - 66kB

It's strange that it should be light green,while pure NaNT is colorless.

Everything is alright before concerntrating the NaNT filtrate，but after adding in some HNO3 solution，the NaNT filtrate turned light green.

before add in HNO3 solution——


DSCF2915.JPG - 62kB

after add in HNO3 solution and modulate pH to 4——

DSCF2920.JPG - 66kB

after concerntrate the NaNT filtrate to 40ml in volume,it turned to dark green,I got a start.——

DSCF2948.JPG - 62kB

then I got some crude greenish NaNT in pieces with some inorganic impurities ,most of which is NaNO3

recrystalize twice with 150ml acetone and dry in air——

DSCF2977.JPG - 66kB


[Edited on 30-11-2011 by QHarryQ]

zoombafu - 29-11-2011 at 21:29

Ummm... can't see the pictures

The_Davster - 30-11-2011 at 02:50

it comes from non-exact pH control during destruction of the CuNT2HNT. it is harmless in all uses of NaNT.

QHarryQ - 30-11-2011 at 03:10

Quote: Originally posted by The_Davster  
it comes from non-exact pH control during destruction of the CuNT2HNT. it is harmless in all uses of NaNT.


Thanks a lot.I added a little more NaOH solution into the CuNT2HNT ,and the pH turned to 10,I had thought it wouldn't make any difference.
By the way,is there any good ways to seperate the greenish substance?Though I know it's harmless,yet I desire some pure NaNT for collection.

[Edited on 30-11-2011 by QHarryQ]

The_Davster - 30-11-2011 at 03:37

Let an acetone solution of NaNt evaporate very slowly. the green stuff is a bit more soluble and crystals of NaNT will form that are pretty much colorless, or maybe have a trace of yellow.

QHarryQ - 30-11-2011 at 06:34

But in this way will get a great amount of NaNT lost,for it's high solubility in acetone.Is there any better ways,such as extraction or something else?Is the yellow stuff Na5-ATZ?Thanks in advance.

VladimirLem - 30-11-2011 at 08:52

eh...wtf is NaNT?

Never4 heared about it :/

Bot0nist - 30-11-2011 at 09:07

Sodium nitrotetrezole maybe. I'm unclear as well.

[Edited on 30-11-2011 by Bot0nist]

hissingnoise - 30-11-2011 at 09:10

It's N-acetyl-N-nitrosotryptophan - 'snot often the word cunt comes up without a flame war in progress . . .


Bot0nist - 30-11-2011 at 09:14

Ha, just caught that. CuNT.

hissingnoise - 30-11-2011 at 09:24

Sticks and stones wi . . .