| Search |
| [Next Page] |
Work hardening of annealed stainless tubing
What stainless? I wouldn't expect that from 304 or 316. Maybe 17-4 PH. Even so, I think the inten ... |
25-10-2009 at 14:50
by: 12AX7 |
potassium permanganate in Canada
John, it looks like you took your dollarsign meds today, but neglected the Gestapo meds. |
23-10-2009 at 08:41
by: 12AX7 |
attacking granite marble with acid
I bet a plasma cutter would do it. Got a metalworking friend? 'Course, it'll explode off chunks an ... |
22-10-2009 at 17:35
by: 12AX7 |
The short questions thread (2)
[rquote=164711&tid=12054&author=chemrox]
what is "cr3032" ??[/rquote]
An odd case, the n ... |
22-10-2009 at 14:51
by: 12AX7 |
Nice demo of induction current
Indeed, that's what they do. Keeps metal-bits from poking holes in their stomachs. An NdFeB magnet ... |
22-10-2009 at 14:50
by: 12AX7 |
pyrometallurgy
Neet. Now distill commercial material for enhanced purity; fractionate cadmium if possible. 
M ... |
20-10-2009 at 07:15
by: 12AX7 |
BLU-107 Durandal
It's not often appreciated that lots of iron bombs were dropped as recently as Desert Storm. Maybe ... |
18-10-2009 at 07:48
by: 12AX7 |
Reagent Production by Electrolysis - a few ideas.
Last time I tried anodic corrosion of copper in Na2CO3, I got a strikingly blue solution: copper for ... |
15-10-2009 at 16:08
by: 12AX7 |
The Bucket Cell Adapter
I presume your peripheral bolts are gasketed on the inside? |
15-10-2009 at 16:01
by: 12AX7 |
Primordial chemicals
Crazy. But I suppose it makes sense: MgO has such an insanely high HoF, it's highly likely to form ... |
15-10-2009 at 15:57
by: 12AX7 |
Recent forum unreliability
Hmm, in a recent thread I typed
==>
and it absent-mindedly went through.
Looks like any ... |
14-10-2009 at 18:48
by: 12AX7 |
Hanovia Bright Platinum coated anodes!
My experience with electroplated platinum goes similarly: it wipes off unless fired. I went into th ... |
13-10-2009 at 20:21
by: 12AX7 |
Preparation of elemental phosphorus
Plenty hot indeed; should be plenty of room there to add silica or fluorite for whatever purpose.
... |
13-10-2009 at 19:59
by: 12AX7 |
Preparation of elemental phosphorus
FYI, FeP is the last phosphide compound / "intermetallic" formed in the Fe-P system. It has a high ... |
13-10-2009 at 11:03
by: 12AX7 |
Fluorine and organic alkanes
The "hydrogen fluorine" fireball is certainly the hydrogen balloon popping and burning in air. The ... |
13-10-2009 at 08:48
by: 12AX7 |
Electrolytic DEplating of silver from copper?
[rquote=164104&tid=12930&author=merrlin]Ag is considerably more soluble in liquid Pb (2.5% e ... |
12-10-2009 at 20:30
by: 12AX7 |
Fluorine and organic alkanes
As I recall, fluorination is done with milder agents. Like... ohh I don't even remember, transition ... |
12-10-2009 at 20:25
by: 12AX7 |
MOT supply for electrolysis
It can be used for smoothing only as long as the voltage is high enough. You can't make voltage wit ... |
12-10-2009 at 20:20
by: 12AX7 |
Why are atoms in constant motion?
[rquote=164092&tid=12915&author=jgourlay]The real question isn't "why" but, "if those little ... |
12-10-2009 at 09:11
by: 12AX7 |
MOT supply for electrolysis
Yes, a 741 will be happy with +/-12V.
Tim |
12-10-2009 at 09:06
by: 12AX7 |
Electrolytic DEplating of silver from copper?
Well, you can certainly drop it in a bucket of nitric acid and take it out when it looks coppery.
... |
12-10-2009 at 08:59
by: 12AX7 |
Why are atoms in constant motion?
The reason is generally because of degrees of freedom on a massive (statistical) scale.
Gasses ar ... |
9-10-2009 at 09:15
by: 12AX7 |
MOT supply for electrolysis
[rquote=163788&tid=12312&author=dann2]Hello,
What do you mean by 'The LM358 includes the ... |
7-10-2009 at 17:49
by: 12AX7 |
MOT supply for electrolysis
The LM358 includes the ground rail, and even this lowly op-amp has better performance than a damn 74 ... |
7-10-2009 at 07:44
by: 12AX7 |
DIY 3000'C homemade electric Arc-for P,... production
Yup, that'll work fine. If you're good enough at it, you don't even need the smoked glass, just clo ... |
6-10-2009 at 15:58
by: 12AX7 |
| [Next Page] |
