D4RR3N
Hazard to Others
Posts: 271
Registered: 9-1-2007
Member Is Offline
Mood: No Mood
|
|
Potassium compounds
First post on this forum, a reader for a while.
I am interested in the following potassium compounds but had no luck in finding any info or suppliers. Firstly I would like to know if these compounds
are possible and secondly how could I produce them in a small quantity from relatively common chemicals.
KCuO2
KAgO2
KWO2
"edit"
I was looking at the archives and noticed that “brauer” is often thought as an authority on similar compounds, sorry to ask but who is Brauer and
what book?
[Edited on 9-1-2007 by D4RR3N]
|
|
|
Bromine
Harmless
Posts: 45
Registered: 7-9-2006
Location: Slovenija
Member Is Offline
Mood: good
|
|
potassium cuprate can be made by disolving CuO in KOH solution.
|
|
|
woelen
Super Administrator
Posts: 8027
Registered: 20-8-2005
Location: Netherlands
Member Is Offline
Mood: interested
|
|
I don't think the other compounds exist.
|
|
|
falconZ
Harmless
Posts: 5
Registered: 4-1-2007
Member Is Offline
Mood: No Mood
|
|
Handbook of Preparative Inorganic Chemistry,
by Georg Brauer
Publisher: Academic Press (1963)
ASIN: B000M0IVDQ
|
|
|
D4RR3N
Hazard to Others
Posts: 271
Registered: 9-1-2007
Member Is Offline
Mood: No Mood
|
|
| Quote: | Originally posted by Bromine
potassium cuprate can be made by disolving CuO in KOH solution. |
Thanks, will this produce KCuO2 or KCuO3 ??? Is it just a matter of heating the solution to get the KCuO2 solid?
|
|
|
D4RR3N
Hazard to Others
Posts: 271
Registered: 9-1-2007
Member Is Offline
Mood: No Mood
|
|
| Quote: | Originally posted by falconZ
Handbook of Preparative Inorganic Chemistry,
by Georg Brauer
Publisher: Academic Press (1963)
ASIN: B000M0IVDQ |
Just looked on Amazon $595
|
|
|
kaviaari
Hazard to Self
Posts: 80
Registered: 21-12-2005
Location: Finland
Member Is Offline
Mood: Going green
|
|
| Quote: | Originally posted by D4RR3N
Just looked on Amazon $595 |
Just look from http://www.sciencemadness.org/library/index.html  Those books are lifesavers
to any chemist!
|
|
|
h0lx
Hazard to Self
Posts: 69
Registered: 31-12-2005
Member Is Offline
|
|
Wolframates exist, but I believe they were WO3 or WO4
|
|
|
woelen
Super Administrator
Posts: 8027
Registered: 20-8-2005
Location: Netherlands
Member Is Offline
Mood: interested
|
|
Wolframates (tungstates) do exist, but they have tungsten in the +6 oxidation state, the formula KWO2 suggests a +3 oxidation state. Actually I have
some tungstate, the compound Na2WO4.
|
|
|
guy
National Hazard
Posts: 982
Registered: 14-4-2004
Location: California, USA
Member Is Offline
Mood: Catalytic!
|
|
When you acidify tungstates (and molybdenates), you get a cluster...but its not just a random cluster, its a set amount; ive always wondered why? If
anyone knows the chemistry behind that.
|
|
|
Ozone
International Hazard
Posts: 1269
Registered: 28-7-2005
Location: Good Olde USA
Member Is Offline
Mood: Integrated
|
|
I'm too tired now to explain all of that (clustering) in detail (in fact, clusters are a hot-topic these days). Check out coordination number and the
18 electron rule (which includes 14, 24, and others...). It is quite do-able. For example, to have metal-metal- quadruple bonds; see
tetrabutylammonium-octachlorodirhenate, for example (I had to make it as an undergrad; they blew it up at Sandia).
Coordination occurs frequently without a change in formal oxidation state (excepting, usually, oxidative addition and reductive eliminations); for
more on this look at olefin pi complexes.
Hope that helps, goodnight all,
O3
-Anyone who never made a mistake never tried anything new.
--Albert Einstein
|
|
|
![[*]](images/xpblue/default_icon.gif){kind=icon}
