به فارسی ترجمه کن: So this is my little setup to make some
table salt also known as sodium chloride. 
So just from the name sodium chloride
you can pretty easily see that has two 
major components: sodium and chlorine. 
On their own, both elements sodium and
chlorine are pretty reactive and dangerous. 
However interestingly enough when they
are combined to form a nice edible salt. 
This is an interesting demonstration
that shows how drastically different the 
properties of a compound can be compared to its components. 
So for the first step I'll cut off a
small piece of sodium that i'm going to 
be using for the reaction. 
Sodium metal is actually quite shiny, but will quickly react with air and moisture 
and forms a white coating. 
You can see a bit of the shininess after
it's cut on the bigger piece. 
The liquid that you see dripping off the
sodium is mineral oil, which is what the 
sodium is stored in. 
This is my chlorine generator. Inside the
flask is chlorine pool pellets. 
I then poured hydrochloric acid into
the flask and it reacts to produce 
chlorine gas. As you can see the chlorine
has a faint greenish yellow color. 
The top is blocked, so the chlorine is
forced down the hose. 
The hose leads into a larger flask with
sand at the bottom. 
The sand is at the bottom to prevent the
glass from cracking from high heat. 
Inside the flask is then dropped a small
pellet of sodium. 
This is half of the piece that I cut off
in the earlier shot. 
A little water was added to get the
reaction started but I think I added a 
bit too much. 
The white cloudiness that you see is a
suspension of really small particles of 
sodium chloride. 
The white stuff on the walls is also
sodium chloride. 
When a lot of the sodium chloride cloud
has dissipated 
it's a lot easier to see a lot of the
white sodium chloride all around the flask. 
I decided to try it again but this time
putting much less water to see what 
would happen. 
It took a bit longer to get started and
there was more flame but it wasn't too impressive. 
It was pretty short-lived and it wasn't
very spectacular, 
maybe it would be better if I used more
sodium. 
The interesting part is that with the
second run since the sodium state in one 
place is left with a solid block of
sodium chloride at the bottom. 
Unfortunately, because the sodium was
reacted and sand 
it's highly contaminated with it. 
So you can see here that when it's
broken up that a good portion of it is sand. 
I really did want to get the sodium
chloride as pure as possible so I opted 
to carry out the experiment again using
the second most common method. 
This involves heating the sodium up
until it melts and lowering it into an 
atmosphere of chlorine. 
This way I would need to use sand and I
could probably get a much purer product. 
Because no sand was required I opted to
do the lazy method which is putting the 
chlorine pellets at the bottom of the
flask and simply pouring hydrochloric acid in. 
To low the sodium in I made somewhat of a
ghetto little contraption, which involved 
a broken test tube and an alligator clip. 
The sodium is placed at the bottom and
then using a torch 
I melted it. 
I heated the sodium until it ignited but
when I lowered it into the chlorine 
it went out which was quite surprising
for me actually. 
Despite it going out all of the sodium
that was exposed to the chlorine became 
nice white sodium chloride, 
but unfortunately this is not the
spectacular reaction that I was expecting. 
I took the sodium back out and I heated
it a lot until it was molten red. 
This time when I place it back into the
chlorine it was a much more spectacular reaction. 
The sodium burned really bright and it
turned my erlenmeyer flask into a lantern. 
From demonstrations and other resources
that I've seen online 
I honestly expected this reaction to
last no more than a few seconds. 
I'm not sure if I just used more sodium
than the other demonstrations but the 
reaction seemed to go very vigorously
and bright for at least a minute. 
Now that the reaction to die down it's
possible to see the reaction going on 
inside the broken test tube. 
Compared to the other method where was
ignited using water 
this method produced a lot more sodium
chloride smoke. 
The test tube was coated in a thick
layer of nice white sodium chloride. 
I tried to scratch off as much as I
could but its honestly very hard and 
stuck very tightly to the glass. 
When it is poured out you can see that
this product is much cleaner than the last run. 
This sodium chloride was surprisingly
fluffy, maybe because it wasn't 
contaminated with so much sand. 
Although this product look nice white
and clean I still highly advise that you 
don't sprinkle this on to your food.