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Science Madness Secret Santa 2024 – allocations have been sent. Registration closed.
Back in the 70s when I was stationed in Portland, Maine, seemed like every soul with a pickup truck ... |
1-12-2024 at 12:03
by: charley1957 |
perchlorates in the eu?
I just checked Woelen’s eBay link and this same seller also advertises on eBay.com in the US. Thi ... |
29-11-2024 at 07:50
by: charley1957 |
Uses for a sodium vapour lamp
There’s a video on YouTube showing how to burn a ‘dark flame’ under a sodium lamp by burning a ... |
29-11-2024 at 07:39
by: charley1957 |
Recycling copper, working at scale. Suggestions.
I stripped the insulation from a LOT of copper wire by drilling a hole through a 2 X 4 piece of lumb ... |
26-11-2024 at 09:03
by: charley1957 |
New 120$ rotovap found online
Notice also it is 220V. |
20-9-2024 at 10:47
by: charley1957 |
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 |
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 |
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