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Some arsenic chemistry
Another great article woelen! And those mineral samples are gorgeous!
23-12-2020 at 01:56
by: Heptylene
Need help finding a non flammable low temp boiling liquid
To make an ice/salt bath, the CaCl2 has to be hexahydrate, not the dihydrate usually sold for dehumi ...
20-12-2020 at 09:13
by: Heptylene
Violuric acid salts (fantastic colors and variety)
Incredible colors! I'm adding this compound to my todo list

Rubidium would be cool to see as well ...
17-12-2020 at 02:23
by: Heptylene
Feasibility of creating a nuclear reactor with the aim of transmutation?
[rquote=651053&tid=156677&author=itsallgoodjames]My goal is to end up with detectable amount ...
12-12-2020 at 03:17
by: Heptylene
The insanity that is OHS
Wtf I would just explode if someone told me dissolving magnesium in vinegar is a problem. Is there a ...
11-12-2020 at 10:37
by: Heptylene
How do you draw benzene rings?
I do it as below. I don't know if it's a common way or not, but it's the fastest way to produce a re ...
10-12-2020 at 11:28
by: Heptylene
How to build a cheap and durable electrolytic cell
It really depends on what you want to do. When I started in the hobby, I used plastic containers, co ...
3-12-2020 at 02:16
by: Heptylene
What can cause garlic-like smell ?
Could it be a phosphorus or arsenic impurity in chromium metal? Dissolving metals are a well establi ...
3-12-2020 at 01:56
by: Heptylene
What are most dangerous toxic chemicals you are comfortable handling in your home lab?
These are some things I don't want to handle in my lab:
- Anything explosive is out of the question ...
29-11-2020 at 01:49
by: Heptylene
Powder addition in reflux?
Perhaps addition of the powder as a slurry in the reaction solvent is possible?
28-11-2020 at 07:10
by: Heptylene
Best Way to Prevent Crystals from being Stuck to Glass?
Have you tried boiling down the water while using magnetic stirring? In my experience this makes slu ...
26-11-2020 at 14:24
by: Heptylene
Crystallisation - truly a dark art
That was a great read, thanks monolithic!
21-11-2020 at 04:28
by: Heptylene
Crystallisation - truly a dark art
I've had non-reproducible crystallisations with 4-nitrobromobenzene. First time, the crude product p ...
20-11-2020 at 09:13
by: Heptylene
Just arrived API 365 Triple Quadrupole Mass Spectrometer
+1 for pictures, vacuum equipment is always delightful to see!

You orignially bought it for its p ...
19-11-2020 at 05:41
by: Heptylene
Anschütz-Thiele receiver/fraction cutter
I just got an Anschütz-Thiele receiver, which is the german version of the Perkin triangle. I've be ...
18-11-2020 at 09:23
by: Heptylene
Removal of vapor duct Büchi R-114
If you can sacrifice the metal part, I would dissolve it in HCl to avoid breaking the glass.
16-11-2020 at 06:55
by: Heptylene
Everyday Chemistry (provisional)
Oh Arkoma I feel for you, pepper extract is a bitch to work up. I've done it 3 or 4 times and everyt ...
14-11-2020 at 09:59
by: Heptylene
Everyday Chemistry (provisional)
I distilled some fuming nitric acid this afternoon! I decided to go with a relatively small scale: 2 ...
14-11-2020 at 07:18
by: Heptylene
How to cut 1oz silver bar into pieces that will fit in a test tube
A chisel will work for a 1oz bar for sure. Be sure to choose the right kind of chisel (for metal). O ...
31-10-2020 at 09:20
by: Heptylene
Oil lock up of rotary vane vacuum pumps
Glad to know oil-filled machinery is not an issue :) For me it was a first.

I don't use the pump ...
20-10-2020 at 00:20
by: Heptylene
Oil lock up of rotary vane vacuum pumps
Hmm, I wish I had known about this issue a few months ago.

I recently acquired a Leybold D10E rot ...
19-10-2020 at 12:55
by: Heptylene
Cheap solvent pump that will not dissolve itself?
A syringe pump maybe? Though I must admit your exact requirements aren't clear to me. What exactly a ...
19-10-2020 at 12:29
by: Heptylene
Chemical containers?
I use a lot of 1000 ml GL45 bottles for liquids. They are great and don't leak much. I store all my ...
15-10-2020 at 00:46
by: Heptylene
PTFE / Teflon labware inclusions - normal or not?
Maybe you can sand the inside and dissolve whatever the inclusions are? Though you would need very t ...
6-10-2020 at 13:23
by: Heptylene
For those distilling at home, how do you feed water into your condenser?
At first I used water from the tap, but it's pretty wasteful. Then I moved to using a 10 liter bucke ...
5-10-2020 at 03:02
by: Heptylene
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