Hello, my dear viewer, how do you do?
The stars who appear alphabetically in today's Smart Chemistry experiment are..
..Stergios, Evgenia, Giorgos..
- Stop, stop! This is not alphabetically!
- Why do you care about this? Did you think that they will be the stars as well?
And I continue! The stars will be..
..Giorgos, Evgenia, Zafeiria..
..Konstantinos, Stergios and Christina.
- A, this was alphabetically (in Greek).
- Yes! And they will also be the stars of this video! So, shall we go to the lab?
- Emm, I will go out with my friends today..
- Ok! When I get back, I want you to have cooked dinner and washed the clothes.
It is my honor to welcome these 6 determined students..
..who accepted my invitation with great enthusiasm.
At this point, I would like to invite you to participate at Smart Chemistry's next experiment.
Alright then, we will schedule it.
Trimethyl borate is the name of the chemical compound we will deal with today..
and it has a very interesting property when it burns.
No, I will not reveal what this property is, I will not make a spoiler.
You will have to wait and watch, when the time comes, the beautiful green flames of trimethyl borate.
Let's do this!
First of all, gloves, glasses amd protection masks are essential before starting the experiment.
The substances we will use are quite dangerous..
..and during the burning, there are some gases released, that you don't want to inhale..
..because they will transform you to the many-headed Hydra.
Trimethyl borate is composed by methanol and boric acid..
..with a reaction that is similar to esterification.
We will use a conical flask and a reflux tube..
..so that the evaporated methanol returns to the reaction mixture.
Chrstina measures H3BO3..
..while Giorgos is helping her to transfer it into the conical flask.
Konstantinos measures the quantity of methanol we will use..
..but the transportation of it into the reaction mixture cannot be done by unexperienced babies.
So, we trust Evgenia's experienced and strong hands..
..which tremble so much that can cause oscillation to Rio-Antirrio bridge.
Stergios is stirring, water starts flowing and the heating pistol starts working.
The reaction will be completed in about half an hour.
Some concantrated H2SO4 has been added to the mixture..
..so that it absorbs the produced water..
..and according to Le Chatelier Principle, the balance of the reaction is moved towards the products...
..and we will get more trimethyl borate
You may use the sentence above at your school exams.
Regarding the reactants, methanol is used as antifreezer and fuel..
..in lab, it is used as solvent..
and some very famous organic compounds are composed by methanol.
And now Zafeiria, who doesn't care about the theoritical part of the experiment..
..prepares the mixture for filtration and removal of the H3BO3, that didn't react.
But there will be a more extensive discussion about the reaction and its chemicals in the next video.
Almost pure trimethyl borate, after filtration, will be burnt in 3 different ways.
We tried a 4th way, but Stergios' joke burnt us and not trimethyl borate.
Some trimethyl borate is added in these three small flasks..
..for you to get an idea of the green flames.
Next, we will lighten the table up with some more trimethyl borate.
Now, we will pour all the remaining trimethyl borate on the floor..
..for an outstanding spectacle.
Christina pours trimethyl borate on the floor..
..while the others are fighting about who will touch off the combustion.
Winner is Evgenia, who ties all lighter's fiances up with aikido moves..
..and sparkles..
This was the green fire of trimethyl borate experiment.
Now you know how Cersei Lannister destroyed all of her competitors in Game of Thrones
Why did we make a green carcinogenic fire inside Smart Chemistry Lab..
..setting our precious lives into danger?
For my cool students of course..
..not.
It is obvious that we did this for the "views"..
..and I am thinking, next time to blow something in my parents' bedroom.
So, don't be shy, my dear viewer..
..LIKE, SUBSCRBE and SHARE..
..just in case we make some money to renovate the house.
I am Dimitris and these are my thrilling students!
See you at the next experiment!



For more infomation >> Video Smart épisode 3 - Comment écrire un bon brief - Duration: 2:20. 



Không có nhận xét nào:
Đăng nhận xét