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microwave modifications

[quote]
As to testing the setup - you need a calibrated meter, which is expensive: the crappy met ...
2-8-2020 at 16:03
by: CouchHatter
Is there any trick to get stir bars to stay centered and spin on flat bottom flasks?
A cross-shaped stirbar will fix this, at least it did for me. I thought my hotplate stirrer magnets ...
27-7-2020 at 09:07
by: CouchHatter
storing gas in water tank
The volume pales in comparison to a cylinder, and to flush head space, you need a good minute of gas ...
19-7-2020 at 19:08
by: CouchHatter
Avoiding Explosions with Fumehood's Inline Fan -Spark Hazard
Although not applicable for ductwork and a true in-line fan, I got around exposing mine to vapors by ...
18-7-2020 at 17:13
by: CouchHatter
plastic coated glass

It's funny you should say that Dr. Bob, it was very sticky! I thought it was residue from some sor ...
18-7-2020 at 17:01
by: CouchHatter
plastic coated glass
When I was going through some chemical bottles that I obtained secondhand, after I removed a label, ...
17-7-2020 at 13:58
by: CouchHatter
Steam distillation tubing size?
Consistent rate of steam generation matters more. I have used 5/16"ID to great success, but if the s ...
10-7-2020 at 03:58
by: CouchHatter
Polypropylene funnel considerations
I've used mine with 52% nitric acid and not noticed any staining. I also poured 40 mL sulfur chlorid ...
6-6-2020 at 09:20
by: CouchHatter
chlorine generator vs HCl generator
I have a supply of pool chlorinating tabs, and so I am more interested in the reaction between HCl a ...
1-6-2020 at 14:54
by: CouchHatter
Worries about Cl in small scale electrolysis
It can be neutralized with a NaOH trap, but I'm not familiar with electrolysis. Unless you're workin ...
28-5-2020 at 19:29
by: CouchHatter
Acetone storage?
Not sure what bottle sizes you think are small - do you need 1 or 4 liters for "small reactions"? My ...
23-5-2020 at 19:53
by: CouchHatter
Newe YouTube Video: Methyl Iodide Synthesis with Aluminum Foil
Cool that you're putting yourself out there! If everything went according to plan it wouldn't be as ...
20-5-2020 at 20:23
by: CouchHatter
Worried that police are intercepting my packages, worried about knock on door. Or just COVID-19 shipping delays?
I'm all for reusing containers, but IIRC, purposely mislabeled chemicals is a big red flag for any v ...
9-5-2020 at 17:33
by: CouchHatter
digging a hole with explosives
Excellent and informative suggestions. From the other post about tree toppling, Vomaturge says that ...
19-4-2020 at 09:06
by: CouchHatter
digging a hole with explosives
I wonder if anybody has used an explosive they made for excavation of rocks or trees. I'm reading th ...
17-4-2020 at 14:16
by: CouchHatter
Ammonium Nitrate Source
The new marijuana supply shops everywhere around here are good for something after all! I recently g ...
1-4-2020 at 08:38
by: CouchHatter
Factors that decide if a fume hood is good or bad?
[url=https://drive.google.com/folderview?id=1mBYa-yjI2-78dmmGBSrX1c2AFxtkFkWe]Hope this helps.[/url] ...
30-3-2020 at 20:10
by: CouchHatter
Factors that decide if a fume hood is good or bad?
Look up the different classes of fume hoods, if they are labeled. Some recirculate air, which is fin ...
27-3-2020 at 17:11
by: CouchHatter
heating media's for heat bath ?!
Could someone explain why the "useful up to __°C" metric is roughly half of the compounds' boiling ...
26-3-2020 at 15:10
by: CouchHatter
free respirator and non-matching cartridges
I have a [url=https://www.3m.com/3M/en_US/company-us/all-3m-products/~/3M-Full-Facepiece-Reusable-Re ...
14-3-2020 at 14:16
by: CouchHatter
New FTP server in testing mode
Glad to hear this! I have searched the forum for some books, and thought I missed out. Why start fro ...
12-3-2020 at 13:45
by: CouchHatter
Claviceps
Ergot and Ergotism by George Barger is on archive.org. It talks about this on page 89.
3-3-2020 at 16:04
by: CouchHatter
typo in Vogel?
I found an error on page 892, preparation of aniline, and on page 562 of the 3e the error is not pre ...
2-3-2020 at 17:54
by: CouchHatter
hydrochloric acid titration results
I bought some new Crown HCl acid and titrated that with the same 0.5M NaOH solution, and got 32.75%. ...
1-3-2020 at 14:31
by: CouchHatter
hydrochloric acid titration results
I had not considered that my degrees of inaccuracy might have compounded. Thank you for the suggesti ...
28-2-2020 at 18:25
by: CouchHatter
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