Off during the day and between 17 and 20 °C when sleeping depending on the season.

If it was an x-ray, isn’t it a little weird to use a radioactive probe (or contrast agent)? I thought that for GI things it was usually a just contrast agent that absorbs x-rays really well… barium or some shit.

Outside Minnesota? Yes, unfortunately, I live out there.

If I stood up straight, my eye level was above the window. Also, glove boxes. The shorter group members could use platforms to raise their height but had trouble reaching the corners, while I had to do a mix of taking an uncomfortably wide stance and slouching. I wish they had been more suitable for my height… I thought everything would be better with taller hoods in my current workplace, but all they did was extend the sash to the floor.

If those undergrads could figure out how to turn acetone into TNT…

Amateurs. https://en.m.wikipedia.org/wiki/Acetone_peroxide

EHS would raise hell if they caught us putting waste solvent in anything but a hazardous waste container…

What a coincidence, the end of my support for windows is also approaching.

jk I srubbed that shit from my personal devices years ago after graduating.

later?

Hey look, it’s a kürzlich aufgebauter vom Aufbauprinzip verbauter Bau

Edit: also, the configuration is referring to silver for those curious. Not my first choice, but whatever floats OP’s boat (Baute?) I suppose.

The intended joke is that hypervalent iodine compounds like Dess-Martin periodinane flip between different oxidation states like you often see for transition metals. As an example, the mechanism usually drawn for oxidations by DMP is similar to those drawn for, e.g., PCC/Jones reagent, where the electrons removed from the substrate is “banked” at the metal center. Obviously, redox chemistry is not at all limited to transition metals, but I am often surprised at iodine’s propensity to engage in it. A lot of research over the past decade or two has also developed redox catalysis with these reagents, reactivity which is commonly (though again not always) the purview of transition metals.

Iodine is a transition metal I will die on this hill.

δ 8.52 - 0.91 ppm (m, 56 H). e z

Nah fam, people like that are the reason we had to evacuate the dorms every month or so in the middle of the night during the winter months.

That and idiots making toast. Not sure how people routinely fucked that up so badly.

that yellow and that green are problematically close

Depends what is meant by green. Acetone is decent for health and safety (flammability notwithstanding) but is produced from petrochemicals and tied to the production of phenol (petroleum -> benzene and propane (or natural gas -> propane), propane -> propylene, benzene + propylene -> cumene, cumene + O2 -> phenol + acetone). Not much chlorophyll involved. Also has somewhere between a moderate to obscene CO2 burden depending on how you draw that box in and around the oil industry, but so do most commodity chemicals.

I for one haven’t used heavy metal catalysts in a year

Maybe not directly, but a lot of commodity chemicals rely on some truly vile metal mixtures for catalysis :)

Aqua regia ain’t no piranha, and also ain’t the most concerning thing in my post lol.

Ah bromime. Super dense, low MW, and low bp, all making dosing accurate amounts a heroic feat. If you store your bromine cold, you can precool the pipette by sucking up and spitting out a few times before transfering, which helps cut down the vapor.

That’s just bad management / just put it on high vacuum

Yes. The whole thing is satirizing the “Safety -> Against” bit. Each piece, though exaggerated for effect, has a basis in something I’ve seen over the years.

Regarding NMR tubes though, the answer in my old group was precious metal complexes, which have a tendency to mirror out once they’ve done their bit. Or just existed for too long; a lot of them were touchy. The mirror tends to resist solvents and scrubbing. Nitric acid alone sometimes was enough to remove it depending on the metal, but often not. At some point the cost, effort, and danger are all supposed to outweigh just binning the lot and buying new tubes, but my PI was allergic to buying new things.

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?

What if the power goes out for a long period of time and the tBuLi goes for a swim? Or we say you have to de-ice the freezer?

Haha sounds crazy. And, I wouldn’t have to do the shitty quench before disposal. Or work on that project anymore.

Because you’re injured or because PI fires you?

Haha, yeah :)

:|

:)

:|

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).

That’s some expensive cereal…

7 is closer to 10 than 6 so we consider that 7 is really just a 10 with a size-3 hole in it and we fill that hole with 3 from the 6 giving a 10 with 3 left over which make 13.

Also not an ADHD thing.