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Preparation of elemental phosphorus
CO would pass the condenser, at which point it could be flared off (along with any pesky P4 / PHx fu ... |
30-9-2013 at 17:22
by: 12AX7 |
Weak Hydroxide solutions Eating Glassware?
I've seen strong NaOH etch a noticeable step in a glass jar (soda lime type), if I had to guess, may ... |
30-9-2013 at 01:51
by: 12AX7 |
Bromine Spectrum Tube
Could also try a dimmer on the NST, but that would require one that can handle inductive loads. Or ... |
29-9-2013 at 06:45
by: 12AX7 |
Bromine Spectrum Tube
I would hazard a guess that the NST would work, but as IrC says, better safe than sorry!
Hmm, won ... |
29-9-2013 at 03:10
by: 12AX7 |
Isolation of Boron from Borax (Sodium Tetraborate)
Use HCl, not chlorine.
B(OH)3 will precipitate. It has to be fused to make boron oxide.
Tim |
29-9-2013 at 03:02
by: 12AX7 |
Nitrates from urea by fermentation
Tradition I believe used a compost heap with straw, dirt, ashes and so on, supplied by a variety of ... |
29-9-2013 at 03:01
by: 12AX7 |
copper zincate?
More likely you'll form an alloy oxide by fusing them at high temperature. I don't know what the ox ... |
29-9-2013 at 02:58
by: 12AX7 |
Ampouling Gallium?
How pure is it, and how soft is pure gallium? If the glass is strong enough, it might contain it -- ... |
29-9-2013 at 02:51
by: 12AX7 |
Methods for producing at least 900C temps in fume hood?
Ah, tons of ventilation then... go nuts!
I'll be surprised if you can get clay or alumina (or oth ... |
28-9-2013 at 05:21
by: 12AX7 |
Sulfuric acid from gypsum
Is Kanthal resistant to SOx?
Actually, a bigass block of gypsum plus etc. ought to be self-suppor ... |
27-9-2013 at 10:09
by: 12AX7 |
Methods for producing at least 900C temps in fume hood?
If you only need a short duration, improperly stored ether will do the trick. . .
A few kgs sound ... |
27-9-2013 at 10:02
by: 12AX7 |
Converting TiO2 to TiCl4 ?
Funny, 2CaCl2 + TiO2 --> TiCl4 + 2CaO will work, but, you'd be refluxing the CaCl2 -- molten chlo ... |
27-9-2013 at 00:19
by: 12AX7 |
Capacitor source?
Yes, recommend indeed. Photoflash caps have huge ESR on purpose. Snap-in style caps (note how the ... |
26-9-2013 at 04:24
by: 12AX7 |
names of compounds
Just to throw confusion to the wind, 
Note that potassium chromate is K2CrO4, while the [i]di[/ ... |
26-9-2013 at 04:07
by: 12AX7 |
Fluoride measurements, common water
I don't know of any silicones that contain fluorine; they may not be stable together. In solution, ... |
26-9-2013 at 03:53
by: 12AX7 |
Sulfuric acid from gypsum
Porcelain, per se, isn't a very good refractory: the difference between it, and any other common cer ... |
25-9-2013 at 19:27
by: 12AX7 |
tesla
Looks like ionic atmospheric currents? Just leakage (from the ionosphere, UV and cosmic rays). It ... |
25-9-2013 at 19:16
by: 12AX7 |
Capacitor source?
Photoflash..?
What kind? Polarity, ESR/ESL...
If you're looking for film, that sounds about r ... |
25-9-2013 at 19:10
by: 12AX7 |
Sulfuric acid from gypsum
Keep in mind, industry is also quite fond of using rotary kilns -- for example, gypsum makes its way ... |
22-9-2013 at 21:49
by: 12AX7 |
Presence of traces iron oxide minerals in limestone
[rquote=300447&tid=25943&author=bfesser]Cu<sub>2</sub>O is red, not orange.[/rqu ... |
22-9-2013 at 21:40
by: 12AX7 |
What is 'acid' and 'base' in metallurgy?
Yes. And it depends a bit, too, since some low-melting slags might not attack alumina (let alone an ... |
22-9-2013 at 21:22
by: 12AX7 |
Presence of traces iron oxide minerals in limestone
Cu2O and Fe(OH)3 would fit the bill; can't think of any others? (V2O5 maybe, but that obviously wou ... |
20-9-2013 at 14:59
by: 12AX7 |
Sulfuric acid from gypsum
Whatever kind of vessel you're cooking that mess in, it's going to end up as one massive glassy blob ... |
20-9-2013 at 14:52
by: 12AX7 |
What is 'acid' and 'base' in metallurgy?
Correct, it obviously isn't pH; but conveniently, the same rules still apply, broadly speaking.
A ... |
20-9-2013 at 14:36
by: 12AX7 |
Made Bromine Tonight
I can verify bromide attacks 6Al-4V titanium alloy as anode.
Tim |
20-9-2013 at 14:08
by: 12AX7 |
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