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Help to determine what this mineral is I guess I wasn't sure of what you were after. Finding out what the bulk of the sand is would be done ...	12-6-2025 at 18:10 by: Cathoderay
Help to determine what this mineral is I found a good starting point and overview of qualitative analysis. I bit easier to follow than the ...	11-6-2025 at 15:14 by: Cathoderay
Help to determine what this mineral is As far as videos on analytical lab methods you could take a look at the ones by Tyler Johns. https: ...	10-6-2025 at 15:00 by: Cathoderay
Silicone masking material- with alkaline lift? Have you considered a type of wax?	22-5-2025 at 09:13 by: Cathoderay
Leaking Unions The only time I've heard of sulfuric acid used on joints is when distilling concentrated sulfuric ac ...	19-4-2025 at 09:02 by: Cathoderay
Leaking Unions I figured out that those numbers are Amazon item identifiers. So you have a model HMSC500 mantle (5 ...	18-4-2025 at 20:07 by: Cathoderay
Leaking Unions There is some confusion, I think those are the serial numbers. The heating mantles have model number ...	17-4-2025 at 16:06 by: Cathoderay
Leaking Unions DanteDominic, wait a minute. You said something about checking it before and after work. At your st ...	16-4-2025 at 20:23 by: Cathoderay
Best thing/way to clean hotplate? Since the hot plate top is a ceramic and not a steel grill I would be very careful about dumping muc ...	28-3-2025 at 06:19 by: Cathoderay
I want to hear your favorite chemistry demonstrations I also found this. Maybe what you saw was a "Sugar Snake". https://en.wikipedia.org/wiki/Black_snak ...	18-3-2025 at 06:36 by: Cathoderay
I want to hear your favorite chemistry demonstrations That sounds like Pharaoh's Serpent (mercury thiocyanate). https://www.youtube.com/watch?v=PSDpgBOtS ...	17-3-2025 at 06:06 by: Cathoderay
Spectracide Stump Remover Discontinued However Tannerite may contain other things like ammonium perchlorate. https://en.wikipedia.org/wiki ...	15-3-2025 at 11:28 by: Cathoderay
Best thing/way to clean hotplate? Corning recommends non-abrasive cleaners You might try a "Glass cook top" cleaner. It may similar t ...	7-3-2025 at 07:40 by: Cathoderay
latest glassware purchase Some additional information. Light Dispersion. https://en.wikipedia.org/wiki/Dispersion_(optics) ...	6-1-2025 at 10:52 by: Cathoderay
latest glassware purchase Morgan, that could be a dispersion prism used in a spectroscope. Something that separates light int ...	6-1-2025 at 10:23 by: Cathoderay
Chemical Price Comparison Software in the making.. I have ordered many things over the years from McMaster-Carr as an individual. The shipping method i ...	17-12-2024 at 15:41 by: Cathoderay
Uses for a sodium vapour lamp Not a lot of chemistry uses. Some physics uses. One scientific use of a sodium lamp was the Michels ...	4-12-2024 at 17:58 by: Cathoderay
Mystery Glassware Identification Thread [rquote=695790&tid=31602&author=Organikum]Got this lamp, labeled "Phillips M13", 0,5 ohm and ...	24-11-2024 at 10:42 by: Cathoderay
Mystery Glassware Identification Thread My guess is that the small gray cylinder near the pump input is a vacuum switch. When the vacuum get ...	2-12-2023 at 08:02 by: Cathoderay
High Vacuum Systems akmetal Did you look at the datasheet for these things? I don't think you have any idea of how dif ...	24-11-2023 at 17:10 by: Cathoderay
Sulfuric acid purification problems I noticed in the comments of that NileRed video that someone said they tried the peroxide method wit ...	22-11-2023 at 11:23 by: Cathoderay
Sulfuric acid purification problems I thought I posted something last night but it isn't here now. I must have clicked the wrong thing. ...	21-11-2023 at 09:53 by: Cathoderay
Sulfuric acid purification problems OK. That type of precipitate is called "flocculent". That could be something organic if you didn't ...	20-11-2023 at 09:51 by: Cathoderay
Sulfuric acid purification problems Seems like "Out of the frying pan and into the fire." That seems like that is a lot or precipitate, ...	19-11-2023 at 19:56 by: Cathoderay
Sulfuric acid purification problems Manufacturers mix additives to sulfuric drain cleaners (inhibitors) so that it is less corrosive to ...	17-11-2023 at 18:49 by: Cathoderay
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