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From: periodicvideos
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  • wonder what tunes he blasts out the booooom box

  • isn't chlorine put in swimming pools and tap water to kill bacteria, the very same tap water that I drink every day and ask myself whether it is poisonous or not?

  • were do you buy the bottles of gasses?

  • its funny that sodium chloride and potassium chloride (salt) are safe when chlorine is so toxic...

  • @silverleaf81 it's because sodium has one outer electron and chlorine has seven so it comes together very tightly making it not very toxic. Plus chlorine is a gas and it turns into acid in your lungs where in salt, it's already reacted and is a solid.

  • chlorine is poisonous because its reactive. once it has reacted in a way that it is stable then it is not dangerous. Hydrochloric acid is dangerous because it is still unstable

  • not a really good explanation.

    HCl is very, very stable in its gaseous form.

  • @flagman57 hydrochloric acid is stable but it easily releases it's hydrogen atoms as any other acid would(actually now when i think about it i don't really know can youconsider it unstable)

  • @gaswerti i meant reactive, not unstable. only radioactive isotopes can be considered unstable. when HCl acid gives up its hydrogen ions, that leaves the chlorine to react with the result. therefore making hydrochloric acid extremely reactive.

  • I've been a subscriber for some time although I'm not exactly a science person :) Your videos are very interesting.

    Recently I started keeping fish and albino frogs and so became interested in water preparation for aquariums (sorry I hope it's not too random a question). There seems to be an ongoing debate about chloramine (chlorine + ammonia) among the fishkeeping circles. The question is: does chloramine dissipate if just let sit for a week? If so, what conditions should be met? Thanks.

  • My name is Anita.I m 13 and I m a student of the bilingual gimnazium in Poland.And I find your vidoes very interesting and usfull in my learnig of chemistry in Englisch.Thank you :)

  • I have inhaled FAR too much chlorine in my lifetime. Its probably the nastiest gas Ive ever used or seen.

  • Hey, I just had inorganic chemistry. and my teacher man a great experiment.

    Put diChlor into a glass and close it, then give it ultra violet light, it will make a crazy Blast cause two monochlor are being created

  • A reaction between ammonium perchorat and aluminumpowder is also used in rocket ship.

  • 2:30 is that the powder that reacts with brake fluid and alcohol and also cola? plz tell me how i can make it if you know i really wanna try the thing with chlorine and brake fluid :D

  • Chlorine is really bad stuff but bromine is MUCH worse. Since you are more likely to encounter bromine in the liquid form, the vapor cncentration is MUCH higher than a few puffs of chlorine. Bromine attacks the lungs but is VERY aggresive towards the nasel passages. And if bromine is spilled on HDPE plastic pails it will tear it to shreds!!

  • pete, why don't you like the smell of chlorine!? i love it!

  • it will kill

  • Only in higher concentratiions. In low concentrations (not much more than you get at the swimming pool), I think it smells quite nice

  • don't get used to that smell, it will kill you

  • When a train wrecked and spilled tons of Co2. A nearby town died in huge numbers. The keys in their pockets turned green. This is how a few smart people figured out what was happening before more died.

  • lol the guy handling it in the cylinder remembers what its like smelling that stuff!

  • Yeah, half his brain is green now. lol

  • liquid one is used in swimming pools, WERE GETTING KILLED!

  • pool "chlorine" is actually calcium perchlorate. Same reaction as napisan!

  • I made chlorine too,please watch my vid and see how to make chlorine yourself too :)

  • lol chlorine gas is used in mustard gas

    wat hitler used to kill all those inoccent jews

  • actually, that was zyklon B.

    Chlorine gas is said here to have been used in world war one, not two.

    ~Safibn

  • i believe the nazis used cyanide gas in the death showers

  • yeah, its hydrogen cynade. zyclon B.

    chlorine isnt used as it just liquifies your lungs.

  • Your hair is awesomely scientific.

  • i made chlorine once. I planned on making acid but made chlorine gas instead. i caught a few long whiffs of it and threw the bottle out of the window (lol) but i didnt get sick exept some burning. i wanted to drink some water but at least a had the sense not to.

  • why not?

  • That would make hydrocloric acid.

  • isnt stomach acid hydrochloric acid, so if he drank water, everything ywould be fine. The chlorine goes to stomach and lungs, and the water goes to stomach...

  • Yes, the stomach is hydrocloric acid. But the stomach is built to resist it. You're lungs is manly made of water; therfore when Clorine is inhaled it will form hydrocloric acid. Disloving you're lungs in the progress. By the way, you would inhale the Clorine not swallow it, so it wouldn't go into your stomach.

  • "nappiieezzz" the way he mentioned this combined with his funny hear made me laugh for 15 min ! hahah

  • i don't know if this is true, but my mom said that i got some kind of allergic reaction or something to chlorine when i was little and i ended up puking all night...i remember the horrible puking but don't really remember anything about the chlorine

  • chloring gas is very toxic. excess exposure to it WILL make you sick like that

  • do you know what other items contain chlorine besides plastic and detergents?

  • Salt

  • Except that's not elemental chlorine. It's chloride. Amazing how *very* different a chlorine atom can be when it loses one of its electrons!

  • I want that mug

  • I was raised with clothe nappies as I was alergic to the throw away ones and they were fine (that was in 1980 btw). People should use them now as we're all meant to recycle as they're a lot less wasteful when you think that a baby uses like 4 desposable ones a day!

  • Make bleach agent and hydrochloric acids

  • I love these videos. They are so awesome, because they give a good description of each of the elements.

  • what will happen after all the table is done? i hope they make videos about other things. loving these at 2am!

  • Wow, you guys call diapers napies? Never knew that. I guess these Periodic Videos give even more info then they intend to!

  • Same why they calling an elevator - lift, tire - tyre, color - colour etc. It's called British English. p.s.: I'm Rus.

  • No, it's called English. Every other English-speaking country uses an adaptation of English. Saying "British English" is both tautological and absurd because that's where English came from in the first place.

  • Isn't it amazing how insular Americans are that they only know of the terms and expressions that their country uses. Whereas most other English-speaking countries know all about the American terms that get used! (It's well known, for instance, that Americans call nappies "diapers".)

  • What's Your point? Search wiki for "British English". There is a lot english dialects I know...

  • It doesn't matter that "British English" can be found on wiki. My point is that it's a stupid term. English *originated* from Britain, so it's a tautology to say "British English".

  • Regardless, all western language is latin based. SO it all comes from the same place.

  • You don't properly understand the meaning of toxic - substances are only toxic if there is a high enough concentration; even water is toxic to humans if you ingest too much of it. There can be tonnes of chlorine in the sea, but it's so dilute that it's harmless. Listen to what he says about the concentration of chlorine gas in the canister - it's 99.5%, so he's right to leave it in the container! Hope this explains it.

  • I used to work at Water Park as a mechanic for the bug pumps. When had to put the chlorine in the master filter we put on the old army gasmask. Because when we opened the drum a mushroom cloud of green Chlorine gas would great us. When i look back now it is amazing noone got hurt.

  • It most definitely isn't a flaw. Chlorine is put in swimming pools to disinfect the water. Disinfect means "kill bacteria (germs)".

    The chlorine in the sea is mostly a part of sodium chloride = salt.

    Even though chlorine is quite toxic, it is also a necessity of life. Without chlorine, we would be dead.

    As toxicologists put it: the poison is in the dose. In the right dose it is beneficial. In the wrong dose is is lethal.

  • also the chlorine put into pools is a compound cuz pure chlorine is usually gas

  • thts the liquid 1 the gas 1 is alot more toxic (i tink)

  • don't think temperature can change toxicity.

  • No, but it would change the speed of the reaction.

  • that is true

  • such a great series

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