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Presence of traces iron oxide minerals in limestone
What pH are we talking? Fe(OH)3 drops out above 3 or so; it's quite acidic itself. It also dissolv ... |
16-9-2013 at 17:56
by: 12AX7 |
thinnest glass
Afraid I don't know what effect you're referring to, don't suppose you have an article offhand?
A ... |
16-9-2013 at 17:53
by: 12AX7 |
Aluminium-Mercury Amalgam
Chloride might be more corrosive to aluminum, which is the case with copper (copper sulfate hardly r ... |
14-9-2013 at 22:33
by: 12AX7 |
Made Bromine Tonight
Thought something looked out of place. Wasn't sure if you already had chlorine (cheating aside, flu ... |
14-9-2013 at 22:31
by: 12AX7 |
Made Bromine Tonight
Cool!
Wait a minute, where's fluorine...? |
14-9-2013 at 16:52
by: 12AX7 |
thinnest glass
Which is why I emphasized the quantum aspect -- if the particle of interest (an electron) is confine ... |
14-9-2013 at 16:51
by: 12AX7 |
Is this right?
Heating or concentrated sulfuric acid? Should be a reference in any synthesis related to those chem ... |
14-9-2013 at 14:07
by: 12AX7 |
Is this right?
Heating or concentrated sulfuric acid? Should be a reference in any synthesis related to those chem ... |
14-9-2013 at 13:49
by: 12AX7 |
Manganese Thermite with Lime
Mn(II) is extremely pale in solution. Manganese compounds are often very impure, iron being the mos ... |
13-9-2013 at 13:12
by: 12AX7 |
thinnest glass
Not so; electrons are much "larger", and are quantized in peculiar (i.e., non-bulk) ways even at the ... |
13-9-2013 at 13:09
by: 12AX7 |
Pictures of members.
[rquote=299381&tid=16192&author=Eddygp]Is it just me or there aren't many women here??[/rquo ... |
11-9-2013 at 10:18
by: 12AX7 |
Silicon Thermite
Looks like too small a run to reach the melting point. Maybe try again with 100g say? 
Tim |
8-9-2013 at 21:02
by: 12AX7 |
yet another reason to be chemophobic
I've heard the ol' rag starter trick described before.
The aerosol style is more common around di ... |
7-9-2013 at 23:32
by: 12AX7 |
Interests in Radioactivity & Nuclear History
Easy:
http://www.electricalfun.com/WorkbenchFun/Fusor_William_Jack.aspx
Though it didn't turn up ... |
7-9-2013 at 23:27
by: 12AX7 |
Separation of Cu(OAc)2 and Zn(OAc)2
Hmm...
Toss in enough zinc to displace all the copper.
Dehydrate and crystallize.
After col ... |
7-9-2013 at 23:20
by: 12AX7 |
Presence of traces iron oxide minerals in limestone
Can you take any bigger photos or zooms of the texture of the dark stuff? |
7-9-2013 at 14:24
by: 12AX7 |
Is Hg classified as crystalline at RTP?
[rquote=299092&tid=26061&author=turd]
Crystallinity has nothing to do with degrees of freed ... |
7-9-2013 at 14:23
by: 12AX7 |
Nylon Family
'Spose it's worth contemplating: what prevents Nylon-6,6 from being a cyclic di- or oligomer itself? ... |
7-9-2013 at 09:44
by: 12AX7 |
Is Hg classified as crystalline at RTP?
I would assert that liquid crystals *are* crystalline, in the sense of having restricted axes of fre ... |
7-9-2013 at 09:41
by: 12AX7 |
Custom made tungsten carbide apparatus
Important question:
Pure tungsten carbide, or cobalt-bonded?
Far as I know, the pure stuff was ... |
7-9-2013 at 09:12
by: 12AX7 |
Is Hg classified as crystalline at RTP?
Perhaps he meant short-ranged order, in the sense that Hg2 molecules might be present, for example, ... |
7-9-2013 at 09:02
by: 12AX7 |
Aluminum hydroxide to Aluminum Oxide
...Or if it's not a glassy ceramic, then the temperature where sufficient diffusion occurs to affect ... |
7-9-2013 at 09:00
by: 12AX7 |
DIY preparation of H2O2?
I can't tell what a CTP-2000K does, electronically (yay for Chinese test equipment..), but it's some ... |
6-9-2013 at 10:10
by: 12AX7 |
What to do with excess electricity? Any neat things to produce?
How much hydro/solar are we talking, and with how much storage capacity? 10kW of anything is enough ... |
6-9-2013 at 09:51
by: 12AX7 |
Silicon Thermite
FYI, Al4Si3 doesn't exist: rather, the two form a simple two phase eutectic system. Silicon and alu ... |
5-9-2013 at 11:11
by: 12AX7 |
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