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copper (II) nitride

copper (II) nitride - Chemistry Forum

copper (II) nitride - Chemistry Forum. Discuss chemical reactions, chemistry.


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  #1  
Old 02-19-2004, 11:22 AM
dave e
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Default copper (II) nitride



Does copper (II) nitride exist? Can it be isolated? Or if not, does
anyone know what it decays to?

I found only a few references to copper (I) nitride. A green
substance which decomposes in water, and decomposes violently in
nitric acid.

Dave
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  #2  
Old 02-19-2004, 06:10 PM
hanson
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Default copper (II) nitride

"dave e" <[Only registered users see links. ]> wrote in message
news:10ffa4e4.0402190322.264baa8a@posting.google.c om...
If you wanna get fanatic about it then try VERY CAUTIOUSLY
a SLOW thermal decomposition of Copper (II) azide in vacuum.
The chemistry is straight forward:
CuCl2 + 2 NaN3 -----> Cu(N3)2 + 2 NaCl
3 Cu(N3)2 ----heat---> Cu3 N2 + 8 N2
Yield: dunno. Conditions: forgot. Properties: can't remember.
What I remember is that Cu(N3)2 is as, or worse then Pb(N3)2.
It is sensitive to the touch like sweet ***** and it blows violently.
I did some investigations, on Cu(N3)2 that is, to replace CuC2 in
electronic detonators in air-to-air missiles. There were dark green
impurities in the product which were conjectured to be Cu3 N2.
The rest is classified.
Remember, enviros do not touch stuff like that. They want to save
you and the earth.... for a permit charge and user fee of course.
Enjoy chemistry and **** enviros!
hahahahaha.......ahahahahanson


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  #3  
Old 02-19-2004, 10:20 PM
Mark Tarka
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Default copper (II) nitride

[Only registered users see links. ] (dave e) wrote in message news:<10ffa4e4.0402190322.264baa8a@posting.google. com>...
[snip...]

GOOGLE: "copper II nitride" ~21
GOOGLE: "copper (II) nitride" ~21
GOOGLE: cu2n2 ~6

The first two look like sets of typos.

The third apparently is a bridge in
an organo-metallic compound (I didn't
read much of what was on the hit-list.

GOOGLE: "copper I nitride" ~31
GOOGLE: "copper (I) nitride" ~33
GOOGLE: cu3n ~130


Mark (Which nuclear allotrope of copper was used?)
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  #4  
Old 02-20-2004, 12:28 AM
Muhammar
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Default copper (II) nitride

Please stay away from Copper(II) azide. This is and extremely
unpleasant unstable stuff - especialy in dry form (as Hanson suggested
in his experiments). Lead azide blasting caps must not be made from
copper or bronze, because they would become extremely sensitive over
time due to the copper contntamination.

"hanson" <[Only registered users see links. ]> wrote in message news:<q_6Zb.343$[Only registered users see links. ].pas.earthlink .net>...
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  #5  
Old 02-20-2004, 07:53 PM
dave e
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Default copper (II) nitride

[Only registered users see links. ] (Muhammar) wrote in message news:<a6cffac9.0402191628.3557f75b@posting.google. com>...

Thanks to both of you for your input.

I know the dangers of copper azide, and wasn't planning to synthesize
the copper nitride in any case. The information is for a highschool
chemistry assignment- My students are heating copper over a flame, and
identifying the two products which form from their physical
properties. Prior to the assignment, I had them visit the library and
look up info on copper(I)oxide, copper(II)oxide, copper(I)nitride and
copper(II)nitride as possible theoretical products of this reaction.
But after writing the assignment, I realized that I wasn't able to
find any information on copper (II) nitride myself (and very little on
copper I nitride, which decomposes easily.)

They'll use the cuprous oxide which adhers to the copper plate to
construct a low current solar cell.
Later in the quarter I'm having them reduce the cupric oxide they
collect back to copper, and do stoichiometric analysis.

There was some other dope from this newsgroup who posted a list of
google hits. Of course I'd already done the google search myself, and
searched the Merck index before posting on sci.chem, so his input
really wasn't much use. Who started that tradition of posting lists
of google hits in response to intelligent on-topic chemistry
questions? Was it Uncle Al? I find it an obnoxious custom.

Dave
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  #6  
Old 02-20-2004, 08:09 PM
dave e
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Default copper (II) nitride

[Only registered users see links. ] (Mark Tarka) wrote in message news:<6b70c71c.0402191420.1b28f188@posting.google. com>...

Yes, I already did a google search. What do you know about copper
(II) nitride that I can't find myself through google or the Merck
index?

"copper II nitride" ~21

cu2n2 isn't a correct formula for copper II nitride



No, I guess you didn't read much of that hit list. As far as I can
tell, every site you listed is a nomenclature problem set, or practice
exam, with no evidence that the compounds named on those worksheets
have ever been made or characterized in the real world.


Yes, I already searched those sites also, and found an MSDS on copper
(I) nitride. So I'm not interested in copper (I) nitride any more.
That's why the title of this thread is "copper (II) nitride"


What's a nuclear allotrope?

Google: "nuclear allotrope" 0 hits.

I think you made it up.

Dave
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  #7  
Old 02-20-2004, 10:33 PM
Mark Tarka
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Default copper (II) nitride

[Only registered users see links. ] (dave e) wrote in message news:<10ffa4e4.0402201153.3e522dba@posting.google. com>...
[snip...]
[snip...]

GOOGLE: few ~77,800,000

[snip...]

GOOGLE: moron ~728,000

[snip...]

GOOGLE: obnoxious custom ~39700
GOOGLE: "obnoxious custom" ~189


GOOGLE: Dave ~20,100,000


GOOGLE: Mark Exactly 1 :-)
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  #8  
Old 02-21-2004, 02:43 AM
hanson
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Default copper (II) nitride

"dave e" <[Only registered users see links. ]> wrote in message
news:10ffa4e4.0402201153.3e522dba@posting.google.c om...
news:<a6cffac9.0402191628.3557f75b@posting.google. com>...
news:<q_6Zb.343$[Only registered users see links. ].pas.earthlink .net>...
[hanson]

I think you made here a terrifically elegant pedagogic choice, because
not finding any info on the nitrides, should give your students right
away an indication that Cu+air will not give readily, easily and
commonly CuNx. The paucity of information on this should be used
to tell them (amongst other observations) that this indicates that N2
is extremely unreactive when compared to O2.........etc.......
I like teachers like you, who with dedication always put an unexpected,
interesting twist onto the show. Nature and chemistry helps you do that.
You are a good man, Dave.
Enjoy chemistry but **** enviros!
ahahahaha......ahahahahanson

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  #9  
Old 02-21-2004, 05:20 AM
donald j haarmann
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Default copper (II) nitride

"dave e" <[Only registered users see links. ]>



---------
Well --- good old Brauer says:

Treating anhydrous CuF2 at 280oC with a "fast" stream of HN3 for three hours
will yield Cu3N. As always - the devil is in the details .... producing anhydrous
CuF2! This procedure is also in Brauer.



--
donald j haarmann - colophon




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  #10  
Old 02-21-2004, 06:54 AM
hanson
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Default copper (II) nitride

"donald j haarmann" <[Only registered users see links. ].net> wrote in message
news:6UBZb.61544$[Only registered users see links. ].worldnet.att.net...

Wait, a minute, Don, --- ??? 3 hrs at 280C with HN3 ???
I don't think so, because Bang, Bang, Bang after 0.3 sec!
That must be NH3 (ammonia) and NOT HN3 (hydrogen azide), right?
Here's what I see:
(a) per 3 CuF2 + 2 NH3 --> Cu3N + 6 HF + 1/2 N2 or
(b) do we get 3 CuF2 + 2 NH3 --> Cu3N2 + 6 HF ??
Check again. Does Brauer say (a) or (b) happens? which one?
(a) yields Cu(1) type, Cu3N, undergoing a reduction from Cu(II).

Now, we can get back to Brauer on how to make anhydrous CuF2?
Let me guess a few possibilities for CuF2, provided that it does not
spontaneously disproportion into 2 CuF2 ---> Cu2F2 + F2 below
the reaction temps of these guesses here:
Cu + F2 --- ~ 200-500 C ----> CuF2
Cu + HgF2 --- ~ 400 C --------- > CuF2 + Hg (distill off, < T in vac)
CuS + 2 HF --- ~ 100 C ----------> CuF2 + H2S

any info on any of that, Don, or anybody else?

Now, we come to the fun part, the **colophon**. AHahAhahahhaha.....
(1) a "colophon" was the gadget marketed/sold to the racetrack/stable
racehorse owners by their new age vets as a loudspeaker in form of a
horsedick, that was shoved up the horses asshole and played "Bach"
in the equine's innards. It was supposed to calm down the nervous
racehorse before race began.

(2) colophon was also the beautiful Bernstein looking glob of raw rosin
(main ingredient: abietic acid aka sylvic acid, or amongst gentlemen,
like me, we call it: 13-isopropylpodocarpa-7,13-dien-15-oic acid) harvested
from some tree sap/resin. My 3rd grade music teacher used colophon to
roughen his fiddle's bow to play his horribly squealing tunes, and then
beat my ass with said colophoned bow when I loudly laughed at him,
insisting that a Mexican guitar does sound much better then his stupid
looking Stradivarius.........Ahahahahah......ahahahaha.... ....

Enjoy chemistry.....and ....well, no, tonight, I won't aggrieve Steve....
ahahahaha.....ahahahanson





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