Science Memes

10271 readers

2967 users here now

Welcome to c/science_memes @ Mander.xyz!

A place for majestic STEMLORD peacocking, as well as memes about the realities of working in a lab.

Rules

Don't throw mud. Behave like an intellectual and remember the human.
Keep it rooted (on topic).
No spam.
Infographics welcome, get schooled.

Research Committee

[email protected]

Other Mander Communities

Science and Research

Biology and Life Sciences

Physical Sciences

Humanities and Social Sciences

Practical and Applied Sciences

Memes

Miscellaneous

founded 2 years ago

MODERATORS

[email protected]

587

Flowchart for STEM (mander.xyz)

submitted 1 month ago by [email protected] to c/[email protected]

96 comments fedilink hide all child comments

you are viewing a single comment's thread
view the rest of the comments

[–] [email protected] 25 points 1 month ago (10 children)

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

[–] [email protected] 9 points 1 month ago* (last edited 1 month ago) (4 children)

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 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).

[–] [email protected] 1 points 1 month ago* (last edited 1 month ago) (1 children)

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

[–] [email protected] 3 points 1 month ago* (last edited 1 month ago)

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.

load more comments (2 replies)

load more comments (7 replies)