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regarding thoughts on scihub ?
I’ve found it extremely helpful. I’ve gained access to many papers I wouldn’t have been able t ... |
8-9-2024 at 01:56
by: charley1957 |
Simple water aspirator setup
There are a few threads on this forum about water aspirator setups. A search using the term aspirat ... |
23-8-2024 at 04:16
by: charley1957 |
Questions regarding understanding stoichiometry
YouTube has dozens of stoichiometry videos, practice problems, etc. Lots of different teachers and d ... |
18-8-2024 at 09:43
by: charley1957 |
Short question / quick answer - Thread
I just ordered methanol from Amazon. I’m using it as a solvent for the extraction of a plant alkal ... |
5-8-2024 at 03:26
by: charley1957 |
Most Beloved Chemicals
Not too long ago I bought a keg (15.5 gallons) of 98% sulfuric acid for around $100. Cheapest way I ... |
30-7-2024 at 10:07
by: charley1957 |
Did eBay pull all iodine crystal/prill listings?
I finally gave up on trying to buy iodine. Instead I bought a kilo of potassium iodide from Amazon ... |
26-6-2024 at 05:20
by: charley1957 |
Did eBay pull all iodine crystal/prill listings?
This is a brand new development if they have. I had been watching iodine forever. Even ordered onc ... |
25-6-2024 at 03:33
by: charley1957 |
Changes to EUD requirements in Australia
When iodine became a lot harder to get, potassium iodide became a LOT more expensive than it used to ... |
22-6-2024 at 05:27
by: charley1957 |
Best spray paint for inside of fume hood blower
This looks like some pretty good stuff. I’d certainly give it a try. I just painted some chemica ... |
21-6-2024 at 05:42
by: charley1957 |
How I safely unplugged a drain using Vinegar and Baking Soda
I have a recurring problem with a shower drain. I have started using my wet/dry shop vac on it, and ... |
21-6-2024 at 05:08
by: charley1957 |
Precious Hotplate Stirrers
I know a guy, had to have the biggest, fanciest 4WD pickup with the biggest engine he could get in i ... |
19-6-2024 at 08:36
by: charley1957 |
Solution strength for dissolving mineral impurities
In my part of the US muriatic acid is found in most hardware stores in the paint section and at most ... |
16-6-2024 at 04:55
by: charley1957 |
Nitric acid from calcium nitrate
I have a container of steel BBs at the sink where i wash my glassware. Swirling/shaking them around ... |
9-6-2024 at 09:29
by: charley1957 |
Trifluoroacetic anhydride?
Old Halon fire extinguishers are still available. I recently called the local fire extinguisher ins ... |
4-6-2024 at 03:26
by: charley1957 |
A stirring exception
I have several pounds of mercury I got from a dentist who was retiring. To that I added some mercur ... |
23-5-2024 at 04:42
by: charley1957 |
A stirring exception
What an exceptional observation! |
22-5-2024 at 03:23
by: charley1957 |
Ethylene Production
https://dacemirror.sci-hub.se/journal-article/69d90edebd841ce4637b9e422ad4e6fe/zhang2010.pdf?downloa ... |
21-5-2024 at 15:13
by: charley1957 |
Fresh eggs, wash or dont?
True, the above. I never wash my eggs, and they can and do last up to 90 days on the counter, no re ... |
20-5-2024 at 07:50
by: charley1957 |
Yellow methanol
When the distillation was all done, I took the remains from the still pot and vacuum filtered it. N ... |
9-5-2024 at 15:05
by: charley1957 |
Yellow methanol
Several years ago I was given a gallon of methanol. It was used as a natural gas pipeline antifreeze ... |
9-5-2024 at 08:31
by: charley1957 |
Dichloromethane now banned from US paint strippers
As of this morning, May 1, you can still get it from Amazon, at least two sellers. Also Sciencecomp ... |
1-5-2024 at 07:44
by: charley1957 |
A new auction underway, April 2024
I’ve looked at all the items of the latest auction of lab equipment. Too many items are completely ... |
5-4-2024 at 18:25
by: charley1957 |
OTC dichloromethane!
https://a.co/d/eruUxEi Here’s another product on Amazon, first ingredient is methylene chloride, ... |
30-3-2024 at 05:27
by: charley1957 |
small companies disappearing
Lab Alley out of Austin, Texas is still around. They have most common chemicals. And I thought Lab ... |
20-3-2024 at 04:27
by: charley1957 |
Recrystallization and stirring
Well he did mention industrial a couple of times, but made it seem that it applied in the lab just a ... |
13-3-2024 at 11:25
by: charley1957 |
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