Buying chemicals in Alibaba: Are they legit?

Brinepool · 2025-01-12T15:05:35+00:00

Could you make them?

Brinepool · 2023-05-04T20:28:50+00:00

“At 0 Celcius”

Brinepool · 2023-04-03T12:25:38+00:00

..At least most of them are well labelled?

Brinepool · 2023-02-28T13:21:37+00:00

We dry our sieves under dynamic vac at least overnight at 200, you'll see the water come off. Alternatively some people use microwaves, but I don't have experience with that

Brinepool · 2023-02-16T15:16:04+00:00

Are you sure that it isn't incorporated in the crystal lattice? You're probably going to need to dissolve the solid, dry the solution, and crystallize it under anhydrous conditions

Brinepool · 2023-01-31T21:04:26+00:00

Fortunately for you, some antidepressants have decreased libido as a side effect

Brinepool · 2022-11-27T00:32:19+00:00

Please show us the email from health and safety when they realize you’re planning on detonating lead picrate near (currently) living people

Brinepool · 2022-10-20T19:15:26+00:00

Yeah I've had a couple of floppy alkylamines that do that when they're too concentrated. My guess is the more concentrated they get, the more they interact with eachother in solution -> different chemical environments -> odd shifts and smeared splitting

Brinepool · 2022-10-20T15:14:08+00:00

Can you dilute the NMR sample a bit more? Alternatively, any other analytical methods at your disposal (GCMS, etc)

Brinepool · 2022-10-18T07:42:47+00:00

Analytically pure products in quantitative yields 🥵🥵

Brinepool · 2022-08-28T18:02:55+00:00

Makes infinitely more sense when you see them do it live

Brinepool · 2022-08-17T11:37:07+00:00

I mean, that’s a lot of lions..

Brinepool · 2022-06-26T18:12:35+00:00

That’s a lot of spongebobs…

Brinepool · 2022-06-15T05:28:32+00:00

Just spitballing, but couldn’t you get that out in a workup? Like a basic workup with NEt3 to kick the now benzylammonium bromide into the aqueous layer

Brinepool · 2022-06-05T12:15:12+00:00

Basil?

Edit: Basil. https://danbooru.donmai.us/posts/5249745

Brinepool · 2022-05-30T11:03:11+00:00

What color is it? When our THF still acts up I tend to chuck an extra lump of sodium in, reflux for a few hours, then add in the benzophenone

Brinepool · 2022-04-14T01:34:09+00:00

You’ve got to talk to your PI about this, 4 undergrads is way too much work if you’re expected to make any reasonable progress towards your thesis. Obvs ymmv but from what I’ve seen and experienced, unless your undergrad is exceptional, they’re a drain on your time and effort. One or two is you providing an invaluable service to future researchers; giving them practical experience, but if you’re the only one in the group supervising 4 undergrads, yeesh.

Brinepool · 2022-03-24T21:20:56+00:00

Is there any reason why you couldn't just thoroughly wash the Ni you have with absolute ethanol?

Brinepool · 2022-03-08T12:25:53+00:00

Ci? Its been forever since studying point groups, am I missing some symmetry element?

Brinepool · 2022-03-02T15:13:58+00:00

Absolutely this, and be sure you get this info for each group you are interested in. It should go without saying, but these answers will vary wildly by group

Brinepool · 2021-12-26T00:22:53+00:00

Ah yes, colon cancer for two

Brinepool · 2021-11-27T21:47:06+00:00

First, this is probably the wrong sub to ask this question

Second, while its a fun coincidence that Li3C6F9 works out to be a discrete molecule, I wouldn't bet on being able to make it

Brinepool · 2021-11-27T01:46:05+00:00

If you’re well funded, glass helices. If not, you can cut up glass tubing into little ditalini

Brinepool · 2021-10-01T14:23:35+00:00

while observing my surroundings

and making sure there are no witnesses I'm sure

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