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Safety: Crash Course

Added Aug 18, 2015 •

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set my best mom with the my life that happened in Labs also some of the worst like the time that I took a week to Paris sample for NMR analysis and then a classmate washed out vials while I was sleeping for the first time in three days because you couldn't find anything else to use for his experiment interesting Lee that resulted in my personal most Camp laboratory injury we all have one I cut my hand while punching a paper towel dispenser in frustration no one ever brought it up again today we're going to talk about to avoid injury in the lab and some good techniques for using laboratory equipment correctly first two lessons already learned never wash out of vile you aren't familiar with and don't paper towel dispensers go to start with some very basic safety stuff your hair if your hair is long it she'll always be up in the lab if it is not it will catch bonfire I've seen it happen if it also knock stuff over including your vision and droop into your flask same thing goes for anything that might hang off your body in the lab droopy clothing sleeves are total disaster shoes and socks clothing the covers your entire torso always I'm sure you look hunky and your muscle shirts and I have nothing against exposed midriffs in the principle do not analyze are your most vulnerable organ always wear eye protection and no just glasses do not count and if you feel like your eyes are starting to tingle or hurt even if you don't know how something might have gotten in their use the eye wash because it never hurts to be careful and we've all wondered what it feels like I've actually never done this so this will be a new experience for me hey does not feel particularly pleasant but it's better than having your eyes burned out to not eat or drink in the lab despite our best efforts stuff does sometimes get where we don't want it and if it gets in your food or you accidentally pick up the wrong cup that's just a really embarrassing story for your obituary alone and especially if working with any Machinery or hazardous substances but it will be up to you when your advisers to make that decision when the time comes sore Hazmat diamond and it's got some useful information in a neat little box is ready 20240 being no big deal and for being who is vorhoff the red is for flammability and yellow is for chemical reactivity in the health means certain kind of exposure will kill you before in fire both very flammable and gaseous so impossible to control outside of a closed container to foreign reactivity means that it is capable of exploding at room temperature underneath any extra information like if it's radioactive or reacts violently with water or something if you ever need to know more about a chemical and what it might do to you or to the world there's the Goodall MS ask the material safety data sheet Every chemical has one and it'll tell you all the terrible things that it might do to you if you ever need to find one really fast you don't need to go to the cabinet anymore you can Google MSDS HCL ER whatever chemical you think is in the process of killing your friend they're all the information on how best to treat the person who got Exposed Of course you should have always red MSDS before you even touch a chemical house you should probably assume that every liquid in a lab that is not water is flammable all the air in their out so you don't have to breathe whatever is going on in there it's also why it's impossible to keep chemistry Labs the proper temperature because the AC unit can Heating units are constantly pumping in control there and these are constantly sucking it out so if you do with some chemistry that might contain some noxious fumes that goes on in here and if you wanted to work properly first you got to turn it on that's the vent that's the blower now it is sucking air second thing you want to do is make sure the sash is at the right level this has a little thing what tells you where the supposed to go if you go above that on this model  little balls that you if the size is higher than that it's not going to properly vent all the stuff to the outside can some of it Market in your face and I will be bad  have any if you don't know whether it was serious or minor you're not sure just tell your instructor I once inhaled set up nitric oxide which though initially extremely unpleasant seems to subside after a while they can have longer-term effects headache nausea disorientation dizziness Pullman edema death so I'm glad I fessed up so that I could get taken care of if you want to know what something smells like do not stick your face in it water toward your face also never test something by tasting it obviously and never pipette by mouth I hear people say that in like who would but then I just found out Lego the chemistry consultant for crash course has twice gotten HCL in his mouth from pipetting by mouth which I will never forgive you for that is what these things are for you put that on the Nair and then you go on if draw all the liquid up with this thing that's what that's far these days most pipetting is done by these guys which are way cooler anyway will the substance from one container to another is pretty good one but if you want to pour you can pour but let me just give you a tip committal nervous when pouring stuff in the chemistry lab and go slow with it but that's terrible you won't overcome the surface tension and dribbled on the side of the containers and just met at the beginning and at the end destroy that surface 10 okay back to safety are cuts and punctures in the most common source of those is cleaning up broken glass which you should not do with your hands but with broom and a dustpan and then deposit the results into a been specifically for sharpstuff the worst thing and it has happened so many times and it's so terrible is forcing a masked rider a thermometer a piece of tubing through a stopper and then it breaks into and through your hand and it's in the and you've been paying for the rest of your life probably so when you doing this summer or go through when you hold it close and make sure your hand is not on the other side so very close and maybe go through like that not like this that's when you're done with an experiment do not just dump the results into the sink unless this has been explicitly approved by the person in charge of chemical safety for some Google's like common acids or bases dilution is the solution to pollution Rockside in addition to some protons are hydroxide ions that are neutralized by buffer Ryan's that are present in your sewage system anyway bottom line is they can be flushed with lots of water for other girls flashing is not a good idea I probably won't hurt you but it might hurt the environment do put the products into an appropriate waste container but not just any waste container different call Vinson reagents have to be disposed of different lengths and if you dump some stuff into the wrong container it could totally end up reacting with the other things that have been dumped in there not good rule of thumb always know the right way to dispose of something before you even start to use it they protect you when you're close just a bit extra in case you're working with something hazardous like Trade It acids are nice because they're easy to get off if you spill something on them well if you're wearing pants you might hesitate a bit too long before you ditch him which reminds me if you spill more than just a bit of anything super bad on your pants modesty goes out the window just take them off also while you take it off going to run over to this guy here his job is to dump a gigantic amount of water on you really fast now usually you don't get to see these things should thank you for sticking with us through this somewhat disjointed lecture on safety in the lab I'm going to take this off purple water  thank you for watching this episode of grass course chemistry if you were listening turn to what to wear in the lab how to dispose of chemicals how to avoid the most common accidents in the laboratory how to pour properly what the Hazmat diamond is what a name is the and how to use a fume Hood our editor is Blake Dino our chemistry consultant is Doctor Who sitting right there laughing at me said was filmed environmental biogeochemistry Lab at the University of Montana so thank you to them it was filmed edited and directed by Nicholas Jenkins or script supervisor was dr. haikal and there are sound designer is Michael louder intergraphics team is Cafe

Uploaded by Laura Houston.

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Safety: Crash Course

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