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Glassware identification
Nice! First and third one are used to create aerosols. The piece of glassware is connected on top of ...
13-8-2020 at 11:43
by: Heptylene
Run Vacuum Pump with Relay Timer (On 2 Sec Off 60 Sec)?
I'm assuming if your pump is PTFE then it's good quality. PTFE is such an expensive material that I ...
9-8-2020 at 11:30
by: Heptylene
Analytical Equipment Demo
All of them? But if I have to pick one, it's TGA, because I have never used it.
3-8-2020 at 12:58
by: Heptylene
Suggestions for glass joint-grease that won't get stuck after vacuum distillations?
Put more grease? Sometimes if you don't put enough grease, there will be some parts of the joint (to ...
3-8-2020 at 12:55
by: Heptylene
Is there any trick to get stir bars to stay centered and spin on flat bottom flasks?
Get large and strong stirbars, you won't regret the investment. Also, some stirbars have a ridge in ...
26-7-2020 at 03:48
by: Heptylene
What mechanism typically stops a gas evolving reaction reaching "infinite" pressure?
Even the reaction of NaOH with aluminum is reversible:
2Al + 2NaOH + 2H2O <--> 2NaAlO2 + 3H2 ...
20-7-2020 at 04:45
by: Heptylene
Uranyl acetate to nitrate
[rquote=640126&tid=155743&author=oberkarteufel]Kindly thank you for your answer. Your advice ...
8-7-2020 at 23:20
by: Heptylene
18K Gold sould I drop it in aqua regia.
Bite it? If it's a gold alloy you will leave a sizeable dent. Or take wire snippers and try to cut t ...
8-7-2020 at 22:36
by: Heptylene
successful method for purifying anthranilic acid(quick report)
Nice, finally a use for my soxhlet apparatus! I remember an attempt at making anthranilic acid which ...
8-7-2020 at 13:33
by: Heptylene
Uranyl acetate to nitrate
I have done the purification of uranyl nitrate by the first method:
impure nitrate --> peroxide ...
7-7-2020 at 10:45
by: Heptylene
latest glassware purchase
Sulaiman: Overhead stirring sounds good. Definitely needed for reactions as I doubt my stirbars are ...
5-7-2020 at 04:43
by: Heptylene
DN 150 reactor
I just bought a 4 liter reactor + 5 neck lid on a local website for $80! Came without any damage or ...
5-7-2020 at 02:11
by: Heptylene
Cubane; Dimethyl Cubane-1,4-dicarboxylate synthesis
I also fail to see why one peak should be favored and would love an explanation.
30-6-2020 at 11:08
by: Heptylene
Cubane; Dimethyl Cubane-1,4-dicarboxylate synthesis
Tsjerk: The emission spectrum is guaranteed to be in the datasheet of the LED. Have a look on digike ...
28-6-2020 at 01:09
by: Heptylene
Looking for discontinued Buchi R-200/205 WD 34 vacuum seals or DIYing them
Perhaps make sure the seal stays clean to extend its life. Also the wear depends on usage I assume. ...
27-6-2020 at 13:59
by: Heptylene
Cubane; Dimethyl Cubane-1,4-dicarboxylate synthesis
Philips makes some UV-B fluorescent tubes. Not cheap though. But maybe there's an affordable source ...
27-6-2020 at 01:13
by: Heptylene
Cryo Refrigerated Well ... thingy
A recirculating chiller? Refrigerated bath?
27-6-2020 at 00:35
by: Heptylene
Cubane; Dimethyl Cubane-1,4-dicarboxylate synthesis
Sigma says the boiling point of the ketal is 55 °C at 35 mmHg. That vacuum level can be easily reac ...
24-6-2020 at 23:18
by: Heptylene
how to pump nitric acid?
[rquote=638982&tid=155617&author=flaminglasrswrd]

Nicely done! Have you looked at [url=ht ...
22-6-2020 at 11:24
by: Heptylene
Buchi Screw Wheel 00565 needed!
Maybe you could make a new tooth from thick plastic plate using a jewelers saw and some files? For $ ...
21-6-2020 at 23:49
by: Heptylene
how to pump nitric acid?
Shameless plug of my own [url=https://www.sciencemadness.org/whisper/viewthread.php?tid=84800&go ...
21-6-2020 at 23:22
by: Heptylene
Chinese rotavaps?
[rquote=638451&tid=155584&author=Refinery]This might be an awkward question, but is rotavap ...
17-6-2020 at 01:20
by: Heptylene
Hydrothermal reactor
You can go with regular plumbing supplies. The galavanized steel ones I've seen are rated for use to ...
8-6-2020 at 13:20
by: Heptylene
Which brand is best? [glassware]
Schott-Duran all the way! Also Ilmabor and Lenz are good brands from germany. Never had problems wit ...
3-6-2020 at 11:32
by: Heptylene
I broke a piece of metal - what was it?
Try to dissolve it in HCl. There solution can have a color indicative of it's composition.
3-6-2020 at 07:53
by: Heptylene
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