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palladium extraction
Yes:
1. Remove HCl-soluble metals in a 5-6 h digestion with 25% HCl at 60*C; add just a pinch o ... |
3-8-2012 at 11:45
by: Fleaker |
palladium extraction
Palladium does in fact form a very insoluble complex (please see my precious metals reclamation thre ... |
3-8-2012 at 11:16
by: Fleaker |
Test for osmium tetroxide?
Don't check the melting point. It's a deadly poison that'll metallize your lungs (let alone eyes) an ... |
10-7-2012 at 19:43
by: Fleaker |
Precious Metal Mini Mystery?
Gold powder won't always be brown even when
For instance, if we dissolve 50 t oz up in aqua ... |
8-7-2012 at 04:05
by: Fleaker |
silver
It will not tarnish in air.
Ag2O will decompose to silver going from brown-black powder to gray p ... |
8-7-2012 at 04:00
by: Fleaker |
Precious Metal Mini Mystery?
Gold powder is black when parted from silver. It is only brown when precipitated from chloroauric ac ... |
6-7-2012 at 14:43
by: Fleaker |
brick sodium
We used to cut it warm with a butcher's knife. This was 4.5" round logs that were about 2 kg a piece ... |
6-7-2012 at 14:41
by: Fleaker |
silver
[quote]Blogfast25:
I’m having a bit of silver trouble right now with fairly freshly precipitate ... |
6-7-2012 at 14:39
by: Fleaker |
Rubidium from the chloride
Awfully expensive salt to just wash away with the garden hose. Please consider careful neutralizatio ... |
27-6-2012 at 05:51
by: Fleaker |
Mystery Metal: ~21.25g/cm3
Neat. It's platinum then, or an alloy thereof.
FYI, don't ever use a mixture of ammonium nitra ... |
25-6-2012 at 08:36
by: Fleaker |
Rubidium from the chloride
If you want, I can send a diffusion pump and make it that much easier.
The 2 mm diameter globules ... |
23-6-2012 at 17:51
by: Fleaker |
Rubidium from the chloride
Great. Glad the material is getting used.
Rubidium is the harder element to prepare and the mor ... |
23-6-2012 at 17:16
by: Fleaker |
Mystery Metal: ~21.25g/cm3
If you want, you can send it to me. I will use XRF analysis on it and tell you what it is. It's eith ... |
23-6-2012 at 17:01
by: Fleaker |
Fume Hood Wet Scrubber Design?
IIRC, fume hoods are exempt under EPA regs since the quantity worked up in them is so trivially smal ... |
16-6-2012 at 02:10
by: Fleaker |
Cleaning and making lithium look presentable
Can it be melted in a graphite mold in vacuo via resistive heating, then cooled, back flushed with a ... |
27-5-2012 at 17:16
by: Fleaker |
Woo hoo, I built a working ball mill!!!
Totally off topic, but what the hell happened to evil_lurker? |
27-5-2012 at 16:29
by: Fleaker |
Anyone here good at CAD?
It's a titanium tumbler for parts cleaning in aqua regia. Probably about 2 m across by 3 m in length ... |
8-5-2012 at 17:45
by: Fleaker |
Making Sodium Silicate
You can come take all you want away for free from our plant. When we make it, we make it by the ton ... |
1-5-2012 at 14:54
by: Fleaker |
Anyone here good at CAD?
Hey all,
I need a reactor/tumbler designed via Autocad/solidworks/whatever.
Shoot me a message ... |
30-4-2012 at 14:17
by: Fleaker |
Glues/adhesives for nitric acid solutions
Epoxy. |
7-4-2012 at 05:33
by: Fleaker |
Cesium from CsCl
Ehh, you just need to make a lot of it, perhaps 2-3 kg per batch, then re-distill it all at once. Le ... |
31-3-2012 at 07:50
by: Fleaker |
A Call to Action: Removing Hydrogen Peroxide from the Dept. of Homeland Security's List of Scheduled Chemicals.
You know, the form that Univar or Brenntag hands out for this chemical is the exact same as they han ... |
25-3-2012 at 18:45
by: Fleaker |
Any interest in osmium tetroxide?
My FedEx account rep told me that FedEx X-rays everything. How many people ship film in small quanti ... |
23-3-2012 at 13:23
by: Fleaker |
friendly suggestions
You can start with the search engine.
[file]18054[/file] |
22-3-2012 at 13:44
by: Fleaker |
Any interest in osmium tetroxide?
I think some of the danger of this compound is well overblown much like the hyperbole with osmium sp ... |
22-3-2012 at 13:41
by: Fleaker |
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