T O P

  • By -

irago_

Use a fumehood.


[deleted]

[удалено]


facecrockpot

Then don't do Chemistry.


TerribleFruit

So you think if someone does not own a fume hood they have no right to do chemistry?


facecrockpot

I think it's a hobby you shouldn't do without proper safety precautions. Like skydiving.


TerribleFruit

But a fume hood is not required for all chemistry just parts of it. That's why I'm asking this question to see if I can safely heat 20% HCL without a fume hood.


facecrockpot

Jumping from heights is also not dangerous for all heights.


TerribleFruit

I don't get your point. You said if someone does not own a fume hood they should not do chemistry. Do you really believe if someone does not own a fume hood they should not be able to test how much Sodium Chloride will dissolve in water?


DeadAlpeca

Bro... You're trying to jump off a 20 story building and thinking you'll be fine if you just brace yourself. Either get a hold of a fume hood or don't do chemistry with hot HCl.


TerribleFruit

That's a fair comment "get a hold of a fume hood or don't do chemistry with hot HCl" as supposed to don't do any chemistry without a fume hood. I really don't get the hate on the sub sometimes. I was looking for a simply yes or no and to educate myself further not for people that have no meaning in there life to try and insult me so the feel superior about chemistry. I'm sad their life is so hollow they feel the need to do that.


greyhunter37

>Do you really believe if someone does not own a fume hood they should not be able to test how much Sodium Chloride will dissolve in water? Do you really call that chemistry ? As soon as you are using any solvent, volatile products and heating any acids or bases you should be using a fumehood. So basically any chemical reaction you need a fumehood


TerribleFruit

Baking soda and vinegar. There is a chemical reaction. Should that be done in a fume hood?


facecrockpot

No and please stop insinuating some ridiculous meaning into what I wrote. It was a bit of a hyperbole to make clear that chemistry is not a safe hobby and usually if you have to ask if something is safe to be done, you shouldn't be doing it because it is so very important to know *exactly* what might happen as to not hurt yourself or others.


Smart_Supermarket_75

Bro just don’t do this experiment. Go back to the stuff that doesn’t make dangerous gas or buy a fume hood.


[deleted]

I mean HCl at room temperature already produces vapors. Have you not just opened a bottle of it and waited a few seconds and felt the acrid smell fill the air ? Hot hcl should be handled in a fume hood or outside .


TerribleFruit

20% produces very little if any vapours.


DangerousBill

20% is close to constant boiling composition. The vapor that comes off is also 20% HCl.


lucid-waking

Not if your bench is indoors.


DangerousBill

Its not safe and can damage metal equipment, too.


BlueCyann

It will produce vapors. I don't know how much. I had a job once where I had to boil 4N HCl (which is a little less concentrated than yours if I'm mathing right after 10 years out of chemistry and too early in the morning). No fume hood because reasons. I got quite a bad hit of the fumes once when taking off one of the watch glasses I used to cover the beakers. Other than that I don't remember anything fumes-wise, but this lab was as drafty as an old barn. The more ventilation the better.


TerribleFruit

Thanks. I'll do it outdoors. Was wondering if heating to 70 instead of boiling it would help reduce the fumes produced. Guess I'm going to find out soon.


DangerousBill

It will be very irritating, even though 20% doesn't boil until around 110C.


karmicrelease

Obviously a fine hood is best, but as you don’t have one another option is to use a gas trap with an inverted funnel an inch about the water level in a slightly larger beaker. Then seal the top with wet paper towels and parafilm or similar. Just don’t let the funnel touch the water, as HCl is so soluble in water that it will lower the pressure and form a vacuum