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Melt-blown PP membrane from face mask
Face masks, which are suddenly available due to (thanks to?) the coronavirus pandemic contain a poly ... |
30-9-2020 at 02:38
by: Heptylene |
Preparation of propargyl alcohol (2-propyn-1-ol)
If you have the DOI for the article, there is a chance you can find the PDF on sci-hub. I would love ... |
30-9-2020 at 01:59
by: Heptylene |
Using industrial chemical processes at home
There have been attempts at the Ostwald by a few members. I know of at least chemetix's and WGTR's a ... |
23-9-2020 at 05:14
by: Heptylene |
Sealing the edges of a Perchlorate Cell Anode
I don't think sealing is needed. Titanium passivates when used as anode, so the parts not coated by ... |
23-9-2020 at 05:05
by: Heptylene |
Reaction Cooling Equipment. What's out there?
If you can find one for cheap, get a recirculating chiller. New they cost about $5k, but you can get ... |
20-9-2020 at 12:17
by: Heptylene |
Flat Flange lid not grounded o-ring
Maybe you can grind the glass yourself? With some abrasive compound and water on a flat surface I'm ... |
17-9-2020 at 07:06
by: Heptylene |
Separate EtOH and IPA
Perhaps with a packed column and distillation head you can manage some separation but it would take ... |
17-9-2020 at 07:04
by: Heptylene |
Amateur chemistry is putting billions at risk!
The r/chemistry subreddit is a dumpster fire in my opinion. People talking about things they don't k ... |
16-9-2020 at 13:00
by: Heptylene |
Vacuum aspirator using DMSO
[rquote=644666&tid=151383&author=Fyndium]When you say "sufficient for ... some vacuum distil ... |
16-9-2020 at 07:28
by: Heptylene |
Vacuum aspirator using DMSO
If you're going through the trouble of building an oil aspirator with liquid pump, tank, etc. then j ... |
16-9-2020 at 01:20
by: Heptylene |
latest glassware purchase
I finally have a heating mantle and it works like a charm!
[file]83225[/file] |
14-9-2020 at 11:35
by: Heptylene |
Suggestions for high temp oil bath?
Has anyone tried vacuum pump oil? The vapor pressure is low by design:
< 1e-8 atm at room temper ... |
12-9-2020 at 02:03
by: Heptylene |
Making Scientific Glassware
Glassblowing is on my todo list, it's so incredibly useful to be able to make your own custom glassw ... |
30-8-2020 at 11:58
by: Heptylene |
Radioactive Minerals
I can recommend [url=https://www.ebay.com/usr/impexeris]this ebay seller[/url] for geiger counters. ... |
29-8-2020 at 07:28
by: Heptylene |
Storing Sodium in Aluminum Bottle
Sodium reacts more slowly with ethanol than with water. You can put the sodium pieces in ethanol. An ... |
25-8-2020 at 13:24
by: Heptylene |
Storing Sodium in Aluminum Bottle
I store my sodium (100 g) in a glass jar with mineral oil. The type of jar with a rubber seal and le ... |
25-8-2020 at 10:48
by: Heptylene |
Leaking desiccator
Try spraying some coloured water on the dessicator while it's under vacuum. The water will get sucke ... |
21-8-2020 at 11:32
by: Heptylene |
Vacuum pump connections
Silicone tubing isn't great for vacuum, it tends to collapse in my experience. I can recommend PVC t ... |
19-8-2020 at 11:13
by: Heptylene |
Lab clear out sale
That's an impressive amount of nitromethane! Do you have a picture of it? |
19-8-2020 at 11:08
by: Heptylene |
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 |
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