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Anhydrous MnCl2 (Mn (II) chloride)?
@Woelen
How can your be sure that what you have in your picture is Mn+++? The Mn+++ ion is a powe ... |
12-8-2008 at 21:43
by: DerAlte |
New still pot and condenser
You may not take measurements, 12AX7, but you are a craftsman! What leadless solder did you use on t ... |
12-8-2008 at 21:24
by: DerAlte |
If water absorbs infrared, how come pools don't get hotter?
I’m not sure what part of Brasil you hie from, Tacho, since it’s a huge country from the equator ... |
1-8-2008 at 10:27
by: DerAlte |
a thought....
According to my trusty handbook, the dielectric strength of pure silica is 410 v/mil.
That works o ... |
30-7-2008 at 23:12
by: DerAlte |
Anhydrous MnCl2 (Mn (II) chloride)?
The green color is a bit OT but I found this lurking in my files:
[img]http://www.sciencemadness.or ... |
30-7-2008 at 22:48
by: DerAlte |
Anhydrous MnCl2 (Mn (II) chloride)?
@Blogfast25
WRT my statement that no Mn(II) compounds are green, I forgot that both oxide and sul ... |
27-7-2008 at 14:42
by: DerAlte |
Anhydrous MnCl2 (Mn (II) chloride)?
@blogfast25
One certainly cannot produce pure anhydrous MnCl2 by heating the hydrate with 4H20. A ... |
26-7-2008 at 09:36
by: DerAlte |
Permanganates
@not_important : duly noted, mea culpa.
@blogfast25
I am replying in this thread even if somewh ... |
24-7-2008 at 18:05
by: DerAlte |
Permanganates
Interesting, not_important. Perhaps I should have said that for all practical purposes (FAPP) mangan ... |
23-7-2008 at 17:42
by: DerAlte |
Permanganates
As you’ve probably gathered, I am a manganese chemistry nut. (All transition metals, too). Mangane ... |
22-7-2008 at 19:42
by: DerAlte |
Permanganates
@chief
First, congratulations on having such a wonderfully sensitive and accurate balance, capabl ... |
21-7-2008 at 14:15
by: DerAlte |
Video Periodic Table
Sorry, you are right, Woelen. It used to be open and there was an English version.
Much like the Le ... |
19-7-2008 at 14:15
by: DerAlte |
Which Operating System do you use?
Have you noticed that as soon as any MS product actually seems to work reasonably well, as XP Pro SP ... |
19-7-2008 at 14:07
by: DerAlte |
Video Periodic Table
@ Xenoid -- was it http://www.cci.ethz.ch/ ? Swiss, worth a look.
Regards,
Der Al ... |
19-7-2008 at 12:56
by: DerAlte |
Permanganates
[b]Fusion[/b]
I have re-tried the age-old fusion reaction with an oxidizer (nitrate) and hydroxid ... |
17-7-2008 at 21:14
by: DerAlte |
Permanganates
[b] Attempt at Theoretical Reconciliation[/b]
*** Ignore the following if you are allergic to the ... |
17-7-2008 at 20:50
by: DerAlte |
Permanganates
[b]Manganates Again[/b]
Since it seems that this old thread has been revived, this is a good time ... |
17-7-2008 at 20:40
by: DerAlte |
Best and worst smelling chemicals?
I have had the same unfortunate experience as Jdurg. I sympathize and agree with him – there is su ... |
4-7-2008 at 14:03
by: DerAlte |
The color of KMnO4
IMHO Woelen has it right.
As a general rule, substances which absorb light on transmission refle ... |
2-7-2008 at 08:11
by: DerAlte |
Best and worst smelling chemicals?
Right, 12AX7 - [i]Tetramethyl[i] diarsine - the formula is correct
Der Alte |
1-7-2008 at 07:52
by: DerAlte |
Best and worst smelling chemicals?
Anyone tried tetramethyl diarsine,(CH3)2-As-As-(CH3)2, cacodyl ?
Years ago I made some after bei ... |
30-6-2008 at 21:37
by: DerAlte |
Rare earth metals, mischmetal, etc
[b]Correction[b]
@JohnWW and readers:
My IIRC re Curie temp of NdFeB magnets was faulty. Resea ... |
30-6-2008 at 21:11
by: DerAlte |
Chlorate from pool chem?
Use the sodium hypochlorite in bleach or HTH pool. These contain about the same weight of NaCl as Na ... |
30-6-2008 at 18:48
by: DerAlte |
Rare earth metals, mischmetal, etc
Nice, kmno4! The color of the oxalate (lavender) is far more pleasing and characteristic of Nd+++ io ... |
30-6-2008 at 16:02
by: DerAlte |
Potassium Chlorate From Bleach
Use glass, Hector! And I agree with Chemleo: AFAIK NaClO will produce a higher yield of chlorate tha ... |
16-6-2008 at 21:25
by: DerAlte |
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