but uranium has 20 billion calories per gram

Ever since Desert Storm small concentration of Saddam particles is found in steel worldwide

you can also bake things at 420C if you’re not a coward about this (like proper thin pizza) (maybe it’s a bit too high but you get the idea)

speaking of, at least it’s using latin alphabet. Good luck making sense of Thai handwriting smudged by acetone especially if you’re not a speaker

damn i wish. some samples will have to be archived for years after i’m gone

one small integer is not enough, two small integers are better (lab journal initials/number and sample number, like AC7-295. something like AC7-295A, then AC7-295B and so on if needed. that’s how i do it anyway) this way there’s no possibility of mixup with other people’s samples and samples described in old lab journals

yet another unrealistic body standard smh

that reminds me of punks using dental floss as a sewing thread

there are a couple journals where peer review means the former. one that i can think of is Organic Sytheses orgsyn.org

the road not taken: glass microliter syringes

Almost all of solvents are made from petrochemicals, so it’s a distinction without difference. Few exceptions (bioethanol, MeTHF, DMSO maybe) also require obscene amounts of energy to prepare

What makes acetone tick as a solvent is the fact that most of phenol is used up immediately for bisphenol A, and this leaves 1eq of acetone from cumene process unused (or cyclohexanone, and this leaves all acetone unused). In some way, acetone is a waste product and that’s why PMMA or isophorone diamine is a thing

Just it’s low toxicity, the fact it’s non-chlorinated and sane boiling point makes acetone a pretty green solvent by comparison

Some of which are probably only a bit stable and so only exist in a mixture

There’s a metastable phase somewhere out there and change of the most stable solid phase between 4-hydrate and 6.5-hydrate

What you’re describing are different crystalline phases of pure compounds, but this does not give you new minima, you need some new compound to form for that

Here is a more complete chart https://chemistry.stackexchange.com/questions/165279/details-of-what-actually-happens-in-cold-sulfuric-acid-between-80-and-90-what

In normal cases you’d see two curves going away from pure compounds downwards to a common minimum, which is eutectic point. It’s generally only vaguely predictable, but always monotonic

This is what happens when some kind of new compound is formed between these two, here it’ll be series of sulfuric acid-water complexes. Same thing happens with metals when intermetallic compounds form, see titanium-nickel phase diagram. Normal case would be eutectic, see aluminum-silicon phase diagram

Acetone is rather green (7 in GSK solvent guide), but I for one haven’t used heavy metal catalysts in a year, and more if you don’t count palladium

Like, so what if we store our tBuLi with other low-flash point flammables? And pyrophoric oxidizers? In the same bin? That’s stuck in a block of ice because in the 30-year-old freezer because it hasn’t ever been de-iced?

That’s just bad management and you shouldn’t store tBuLi that long anyway because it’ll decompose. You shouldn’t put it in freezer either

Oh, while you’re here, does this still smell like DCM? I can’t tell if I rotavapped it all off and the NMR tubes all need aqua regia (sorry my b).

just put it on high vacuum

What are you working with that requires aqua regia to clean NMR tubes? I’ve only had to use piranha once in a decade, while cleaning things that acetone, DCM, and basic ethanol won’t touch, and this was just after moving to another lab

accurate, and for the record, EPA, you can take my DCM wash bottle out of my DEAD DEGREASED HANDS