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Growing Synthetic Corundums (Ruby)
Have you considered hydrothermal growth?
https://www.gia.edu/gems-gemology/spring-2022-lab-notes- ... |
9-7-2023 at 04:38
by: Fleaker |
Do PGMs react with hot NaOH solution ?
they're not appreciably attacked by 50% hot NaOH.
Molten NaOH will impact every PM but gold and s ... |
25-4-2023 at 10:22
by: Fleaker |
The oldershaw column she told you not to worry about
How's the fish tank, Bill? |
27-1-2023 at 09:42
by: Fleaker |
Osmium chemistry
OsO4 is actually rather nasty, much worse in comparison to even RuO4.
The first thing one notice ... |
9-11-2022 at 08:26
by: Fleaker |
Value of gold
It will be H2 storage from renewables (Ir catalyst) put into the ammonia molecule.
It will be amm ... |
30-6-2022 at 10:47
by: Fleaker |
Pure metallic calcium for sale.
Too bad he's not state side because shipping to me would be prohibitively expensive. I would pick up ... |
20-1-2022 at 15:30
by: Fleaker |
Speculative investments in chemical elements
Now would be a good time to buy rhenium: one of the largest producers of secondary rhenium exited th ... |
5-4-2021 at 11:34
by: Fleaker |
Prices of Palladium and Rhodium have SKYROCKETED - here's what I see happening.
Chlororhodic acid we make is about 7-8 oz troy per liter as a product. Getting very expensive.
I ... |
9-3-2021 at 13:28
by: Fleaker |
Removing lead oxide from lead ingots.
Keep in mind that soluble lead salts are quite toxic.
I would imagine dilute nitric would work be ... |
14-7-2020 at 12:58
by: Fleaker |
What are your experiences with Chemsavers? Reliable supplier for amateurs?
We sell to and buy from them. Good people. |
18-6-2020 at 12:32
by: Fleaker |
Chinese rotavaps?
[rquote=638455&tid=155584&author=G-Coupled][rquote=638426&tid=155584&author=Fleaker] ... |
18-6-2020 at 12:27
by: Fleaker |
Chinese rotavaps?
I have a 50 L one that seems to work ok. |
15-6-2020 at 07:09
by: Fleaker |
Prices of Palladium and Rhodium have SKYROCKETED - here's what I see happening.
The crazy thing about these metals is not just the volatility, it's the rampant price manipulation c ... |
9-4-2020 at 17:18
by: Fleaker |
Magpie has died
Just now saw this.
RIP Don, you were an example to us all. I will miss our talk of autoclaves an ... |
2-1-2020 at 13:01
by: Fleaker |
Ruthenium too good to be true?
Looks like RuO2 to me.
Most commercial Ru metal (sponge) is a light grey powder like the rest of ... |
10-12-2019 at 12:21
by: Fleaker |
Any way in recycling silver nitrate from its oxides?
The Ag2S melts into a matte. Then it can be converted to silver with a piece of iron rod at the melt ... |
10-12-2019 at 12:20
by: Fleaker |
How do i synthesize sodium peroxide?
Really, this is of practical interest to me.
Sodium peroxide is an extremely clean and efficient ... |
11-9-2019 at 11:13
by: Fleaker |
Platinum price will depend on Tesla and spaceX (basically on elon musk)
Platinum prices have been in the can for a while.
Bigger deal is the ratio of Pd to Pt in autocat ... |
31-7-2019 at 09:45
by: Fleaker |
Anyone looking for glass ware, heating mantles, stirrers, pumps near Racine WI
Got any 50 L, 72 L and 100 L flasks? |
11-6-2019 at 05:15
by: Fleaker |
Ruthenium(III) chloride - RuCl3
It all depends how fresh the ruthenium hydroxide is. Freshly precipitated will dissolve even in weak ... |
11-6-2019 at 05:12
by: Fleaker |
For sale Re2O7 Rhenium(VII) oxide 99.99+% (ultradry) in glass ampoules
Will you trade for pure (4N+) rhenium pellets or APR (catalyst grade)?
I just want these because ... |
28-3-2019 at 10:55
by: Fleaker |
Anyone interested in purchasing rhodium or ruthenium sponge? Your budget is the limit!
How rich is it? |
28-3-2019 at 10:53
by: Fleaker |
can a diamond dissolve in acid ?
Usually standard for cleaning (gem) diamonds in bulk is nitrosulfuric acid followed by HF to frost o ... |
11-10-2018 at 06:34
by: Fleaker |
Silver Rhodium Separation
I don't know how soluble rhodium is in silver, or vice versa. Check a phase diagram! I seem to recal ... |
30-4-2018 at 07:13
by: Fleaker |
Making Pinchbeck Brass
Borax glass is usually used as a cover flux for cuprous, gold, silver alloys.
The borax stops a l ... |
13-4-2018 at 07:41
by: Fleaker |
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