Asklemmy

43989 readers

1483 users here now

A loosely moderated place to ask open-ended questions

Search asklemmy 🔍

If your post meets the following criteria, it's welcome here!

Open-ended question
Not offensive: at this point, we do not have the bandwidth to moderate overtly political discussions. Assume best intent and be excellent to each other.
Not regarding using or support for Lemmy: context, see the list of support communities and tools for finding communities below
Not ad nauseam inducing: please make sure it is a question that would be new to most members
An actual topic of discussion

Looking for support?

Looking for a community?

Lemmyverse: community search
sub.rehab: maps old subreddits to fediverse options, marks official as such
[email protected]: a community for finding communities

~Icon~ ~by~ ~@Double_[email protected]~

founded 5 years ago

MODERATORS

[email protected]

196

What small piece of advice would you like to give that isn't heard enough ? (self.asklemmy)

submitted 10 months ago* (last edited 10 months ago) by Vcio to c/[email protected]

214 comments fedilink hide all child comments

Computer related:

Don't be your family computer savy guy, you just found yourself a bunch payless jobs...
Long desks are cool and all, but the amount the space they occupy is not worth it.
Block work related phone calls at weekends, being disturbed at your leisure for things that could be resolved on Mondays will sour your day.

Buying stuff:

There is expensive because of brand and expensive because of material quality, do your research.
Bulk buying is underrated, save yourself a few bucks, pile that toilet paper until the ceiling is you must.
Second hand/broken often means never cleaned, lubricated or with easy fixable problem.

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

[–] [email protected] 2 points 10 months ago (1 children)

Why is it called "glacial" like it's got something to do with ice? Why not simply "concentrated", which it is? Thanks

[–] [email protected] 2 points 10 months ago* (last edited 10 months ago)

Glacial = anhydrous. People call it this way because pure acetic acid has a rather high freezing point (16°C), and it looks a lot like plain ice when frozen. (It still stinks vinegar once you open the bottle though.) But once you add even a bit of water, the freezing point drops considerably, so acetic acid solutions don't show the same "ice".

So in colder days, you need to rewarm it back into a liquid. Then people get really sloppy (I know it not just from that professor's anecdote, but from watching it). They say "I'm just rewarming it, and it's just acetic acid, what could go wrong?". Well, it's still a big flask of a corrosive, volatile, and flammable substance.

In the meantime, the same people doing dangerous reactions like nitration (it literally explodes if you let it get too hot - spreading nitric acid, sulphuric acid, and some carcinogenic solvent) "miraculously" pay full attention, obsessively taking care of the temperature of the ice bath.

Part of the advice that I mentioned in that comment chain is that - smaller dangers are still dangers, do not underestimate them.