hey guys I’m Nate welcome back to the dome where today we’re gonna be doing
dome where today we’re gonna be doing
dome where today we’re gonna be doing some experiments using salt and seeing
some experiments using salt and seeing
some experiments using salt and seeing what happens if we melt it down in our
what happens if we melt it down in our
what happens if we melt it down in our foundry some other channels have already
foundry some other channels have already
foundry some other channels have already done some experiments using molten salt
done some experiments using molten salt
done some experiments using molten salt and I figured it was our turn to give it
and I figured it was our turn to give it
and I figured it was our turn to give it a shot so today we’re going to take a
a shot so today we’re going to take a
a shot so today we’re going to take a look at melting salt and see what we can
look at melting salt and see what we can
look at melting salt and see what we can learn about it we’ll see how long it
learn about it we’ll see how long it
learn about it we’ll see how long it takes to melt in our foundry and we’ll
takes to melt in our foundry and we’ll
takes to melt in our foundry and we’ll see how long it stays a liquid we’ll
see how long it stays a liquid we’ll
see how long it stays a liquid we’ll take a look at what it looks like when
take a look at what it looks like when
take a look at what it looks like when it is a liquid how thick is it what
it is a liquid how thick is it what
it is a liquid how thick is it what color is it and just try and learn what
color is it and just try and learn what
color is it and just try and learn what molten salt is like of course we will
molten salt is like of course we will
molten salt is like of course we will need to be careful because table salt
need to be careful because table salt
need to be careful because table salt melts at almost 1500 degrees Fahrenheit
melts at almost 1500 degrees Fahrenheit
melts at almost 1500 degrees Fahrenheit so by the time its liquid is going to be
so by the time its liquid is going to be
so by the time its liquid is going to be dangerously hot depending on how our
dangerously hot depending on how our
dangerously hot depending on how our experiments go today in the future we
experiments go today in the future we
experiments go today in the future we may try pouring molten salt into things
may try pouring molten salt into things
may try pouring molten salt into things onto things or dipping things into the
onto things or dipping things into the
onto things or dipping things into the molten salt itself let’s fire up the
molten salt itself let’s fire up the
molten salt itself let’s fire up the foundry
all right our salt is now molten and it
all right our salt is now molten and it took 17 maybe 18 minutes to get to the
took 17 maybe 18 minutes to get to the
took 17 maybe 18 minutes to get to the point where it was really nice and
point where it was really nice and
point where it was really nice and liquid and then we let it sit in our
liquid and then we let it sit in our
liquid and then we let it sit in our foundry for just a couple minutes more
foundry for just a couple minutes more
foundry for just a couple minutes more to make sure that we really got it up to
to make sure that we really got it up to
to make sure that we really got it up to temperature now I’ll use the tongs I’ll
temperature now I’ll use the tongs I’ll
temperature now I’ll use the tongs I’ll take the whole crucible out of the
take the whole crucible out of the
take the whole crucible out of the foundry and I’ll set it on the bottom of
foundry and I’ll set it on the bottom of
foundry and I’ll set it on the bottom of a pot I had turned over that’ll give us
a pot I had turned over that’ll give us
a pot I had turned over that’ll give us a nice metal base so it will just burn
a nice metal base so it will just burn
a nice metal base so it will just burn the ground that it’s sitting on it might
the ground that it’s sitting on it might
the ground that it’s sitting on it might burn some of the coating on my metal pot
burn some of the coating on my metal pot
burn some of the coating on my metal pot but it’s hot it’s a quick demonstration
but it’s hot it’s a quick demonstration
but it’s hot it’s a quick demonstration of how hot this is is just piece of wood
of how hot this is is just piece of wood
of how hot this is is just piece of wood let’s dip that in and see what happens
let’s dip that in and see what happens
let’s dip that in and see what happens to it instantly lights on fire let’s try
to it instantly lights on fire let’s try
to it instantly lights on fire let’s try that again
that again
that again instantly lights on fire again take the
instantly lights on fire again take the
instantly lights on fire again take the metal tongs and I dip those in light on
metal tongs and I dip those in light on
metal tongs and I dip those in light on fire but they get coated with salt
fire but they get coated with salt
fire but they get coated with salt pretty nice it’s just a thin layer of
pretty nice it’s just a thin layer of
pretty nice it’s just a thin layer of salt built up on the tongs right there
salt built up on the tongs right there
salt built up on the tongs right there as it cools off it’s still putting off
as it cools off it’s still putting off
as it cools off it’s still putting off some orange glow but it’s getting less
some orange glow but it’s getting less
some orange glow but it’s getting less and less and I’m starting to be able to
and less and I’m starting to be able to
and less and I’m starting to be able to see down through it like I can see the
see down through it like I can see the
see down through it like I can see the bottom of the crucible so I think this
bottom of the crucible so I think this
bottom of the crucible so I think this stuff is pretty clear in terms of color
stuff is pretty clear in terms of color
stuff is pretty clear in terms of color that’s a very thin viscosity the way
that’s a very thin viscosity the way
that’s a very thin viscosity the way that moves around in the container it’s
that moves around in the container it’s
that moves around in the container it’s almost water lightly
almost water lightly
almost water lightly [Music]
[Music]
[Music] salt is not so liquid once we scoop it
salt is not so liquid once we scoop it
salt is not so liquid once we scoop it out I think it’s definitely cooling down
out I think it’s definitely cooling down
out I think it’s definitely cooling down now we have almost like a salt slush it
now we have almost like a salt slush it
now we have almost like a salt slush it doesn’t look quite as warm but you can
doesn’t look quite as warm but you can
doesn’t look quite as warm but you can see that it still burns the piece of
see that it still burns the piece of
see that it still burns the piece of wood almost immediately so it is cooler
wood almost immediately so it is cooler
wood almost immediately so it is cooler but it’s not cold let’s pour a little
but it’s not cold let’s pour a little
but it’s not cold let’s pour a little bit more salt on top of this and throw
bit more salt on top of this and throw
bit more salt on top of this and throw it back in the furnace get it back to
it back in the furnace get it back to
it back in the furnace get it back to nice and runny
nice and runny
nice and runny [Music]
this time we’ll put the lid on that
this time we’ll put the lid on that might speed up the process the fact that
might speed up the process the fact that
might speed up the process the fact that our crucible is already extremely hot
our crucible is already extremely hot
our crucible is already extremely hot should also make it go faster over where
should also make it go faster over where
should also make it go faster over where we have the foundry inside the dome it’s
we have the foundry inside the dome it’s
we have the foundry inside the dome it’s actually quite dark there’s not a ton of
actually quite dark there’s not a ton of
actually quite dark there’s not a ton of light getting and except through the
light getting and except through the
light getting and except through the main door so we’ve moved over here by
main door so we’ve moved over here by
main door so we’ve moved over here by the door to get a lot more light because
the door to get a lot more light because
the door to get a lot more light because the salt I don’t think will always be
the salt I don’t think will always be
the salt I don’t think will always be glowing orange that much you may have
glowing orange that much you may have
glowing orange that much you may have seen that as soon as I took some of the
seen that as soon as I took some of the
seen that as soon as I took some of the salt out of the crucible it didn’t look
salt out of the crucible it didn’t look
salt out of the crucible it didn’t look like it was glowing anymore and I think
like it was glowing anymore and I think
like it was glowing anymore and I think it’s just because it was so dark that we
it’s just because it was so dark that we
it’s just because it was so dark that we could see that light being put off so to
could see that light being put off so to
could see that light being put off so to get a better sense of what it looks like
get a better sense of what it looks like
get a better sense of what it looks like with normal lighting we’re gonna pour
with normal lighting we’re gonna pour
with normal lighting we’re gonna pour our salt into this pot over here and see
our salt into this pot over here and see
our salt into this pot over here and see what color it is see how viscous it is
what color it is see how viscous it is
what color it is see how viscous it is and just learn about what happens if you
and just learn about what happens if you
and just learn about what happens if you pour it out of the crucible into another
pour it out of the crucible into another
pour it out of the crucible into another container so just by bringing it over
container so just by bringing it over
container so just by bringing it over here into where we have a little bit
here into where we have a little bit
here into where we have a little bit more sunlight suddenly the crucible
more sunlight suddenly the crucible
more sunlight suddenly the crucible doesn’t look like it’s all glowing
doesn’t look like it’s all glowing
doesn’t look like it’s all glowing orange nearly as much it’s still very
orange nearly as much it’s still very
orange nearly as much it’s still very warm and it’s still putting off a little
warm and it’s still putting off a little
warm and it’s still putting off a little bit of orange color that’s considerably
bit of orange color that’s considerably
bit of orange color that’s considerably less all right so now we’ve got our salt
less all right so now we’ve got our salt
less all right so now we’ve got our salt which does still look orange in here but
which does still look orange in here but
which does still look orange in here but let’s pour it out into our pot and see
let’s pour it out into our pot and see
let’s pour it out into our pot and see what color it looks there look how thin
what color it looks there look how thin
what color it looks there look how thin and runny that is is the liquid I’m just
and runny that is is the liquid I’m just
and runny that is is the liquid I’m just gonna pour all of it here we go
there you go that’s not orange anymore
there you go that’s not orange anymore it’s just that really has the
it’s just that really has the
it’s just that really has the consistency of water or something that’s
consistency of water or something that’s
consistency of water or something that’s so thin wow it is rapidly cooling off
so thin wow it is rapidly cooling off
so thin wow it is rapidly cooling off though leave that you can see the salt
though leave that you can see the salt
though leave that you can see the salt forming on the sides it’s getting almost
forming on the sides it’s getting almost
forming on the sides it’s getting almost a slushy consistency already it’s only
a slushy consistency already it’s only
a slushy consistency already it’s only been a few seconds and there you go now
been a few seconds and there you go now
been a few seconds and there you go now it’s starting to form into just crystals
it’s starting to form into just crystals
it’s starting to form into just crystals again the stuff that I poured onto the
again the stuff that I poured onto the
again the stuff that I poured onto the bottom of the pot cooled down first of
bottom of the pot cooled down first of
bottom of the pot cooled down first of course because it was in contact with
course because it was in contact with
course because it was in contact with the metal surface and the metal surface
the metal surface and the metal surface
the metal surface and the metal surface was cool
was cool
was cool and it’s cooled down enough and started
and it’s cooled down enough and started
and it’s cooled down enough and started to shrink that I think it’s just
to shrink that I think it’s just
to shrink that I think it’s just completely free it’s not stuck to the
completely free it’s not stuck to the
completely free it’s not stuck to the bottom of the pot it’s just a piece of
bottom of the pot it’s just a piece of
bottom of the pot it’s just a piece of salt shaking around in there we also
salt shaking around in there we also
salt shaking around in there we also have this one High Point that’s right
have this one High Point that’s right
have this one High Point that’s right where I poured it on and I think because
where I poured it on and I think because
where I poured it on and I think because it was landing right there first sort of
it was landing right there first sort of
it was landing right there first sort of built up a little spot this is pretty
built up a little spot this is pretty
built up a little spot this is pretty loose let’s see if we can tip the whole
loose let’s see if we can tip the whole
loose let’s see if we can tip the whole thing out
somewhat smooth on the bottom pretty
somewhat smooth on the bottom pretty rough on the top we can see that it no
rough on the top we can see that it no
rough on the top we can see that it no longer has the white color that the salt
longer has the white color that the salt
longer has the white color that the salt did when we’re pouring it out of its
did when we’re pouring it out of its
did when we’re pouring it out of its container originally I’m pretty sure
container originally I’m pretty sure
container originally I’m pretty sure that what is happening is our salt is
that what is happening is our salt is
that what is happening is our salt is actually picking up a little bit of the
actually picking up a little bit of the
actually picking up a little bit of the trace chemicals and elements inside our
trace chemicals and elements inside our
trace chemicals and elements inside our crucible and our crucible is made of
crucible and our crucible is made of
crucible and our crucible is made of graphite so it could be pulling carbon
graphite so it could be pulling carbon
graphite so it could be pulling carbon right out of the graphite and that might
right out of the graphite and that might
right out of the graphite and that might be what’s giving us this grey color it
be what’s giving us this grey color it
be what’s giving us this grey color it also might have something to do with the
also might have something to do with the
also might have something to do with the cooling temperature and situation in
cooling temperature and situation in
cooling temperature and situation in which it forms back into a crystal well
which it forms back into a crystal well
which it forms back into a crystal well it’s making a lot of cool noises it’s
it’s making a lot of cool noises it’s
it’s making a lot of cool noises it’s making lots of clicking sounds and since
making lots of clicking sounds and since
making lots of clicking sounds and since it’s sitting on top of the metal pot
it’s sitting on top of the metal pot
it’s sitting on top of the metal pot upside down I think that’s sort of
upside down I think that’s sort of
upside down I think that’s sort of amplifying our sound a little bit there
amplifying our sound a little bit there
amplifying our sound a little bit there was a spot of salt here that splashed
was a spot of salt here that splashed
was a spot of salt here that splashed out I’m not touching it either right now
out I’m not touching it either right now
out I’m not touching it either right now because it’s still very hot I’ve got
because it’s still very hot I’ve got
because it’s still very hot I’ve got this little stick of ice I think is
this little stick of ice I think is
this little stick of ice I think is probably an icicle
probably an icicle
probably an icicle okay
okay
okay [Music]
[Music]
[Music] it’s interesting a little white trail I
it’s interesting a little white trail I
it’s interesting a little white trail I think that’s where from a tiny bit of
think that’s where from a tiny bit of
think that’s where from a tiny bit of the salt gets dissolved and then
the salt gets dissolved and then
the salt gets dissolved and then recrystallizes quickly from the water
salt and ice is fun to play with we
salt and ice is fun to play with we might have to do some more experiments
might have to do some more experiments
might have to do some more experiments with that in the future all right our
with that in the future all right our
with that in the future all right our salt has now cooled down it’s been
salt has now cooled down it’s been
salt has now cooled down it’s been sitting here for 20-30 minutes to get to
sitting here for 20-30 minutes to get to
sitting here for 20-30 minutes to get to the point where it was safe to touch I
the point where it was safe to touch I
the point where it was safe to touch I think so we now just have this biscuit
think so we now just have this biscuit
think so we now just have this biscuit of cooled salt that’s gone back to a
of cooled salt that’s gone back to a
of cooled salt that’s gone back to a crystal formation obviously no longer
crystal formation obviously no longer
crystal formation obviously no longer liquid but it doesn’t look like how it
liquid but it doesn’t look like how it
liquid but it doesn’t look like how it did before it melted that’s for sure see
did before it melted that’s for sure see
did before it melted that’s for sure see it’s about a quarter of an inch thick
it’s about a quarter of an inch thick
it’s about a quarter of an inch thick maybe a little less I’m gonna crack it
maybe a little less I’m gonna crack it
maybe a little less I’m gonna crack it in half and see what looks like on the
in half and see what looks like on the
in half and see what looks like on the inside we’ve got some interesting layers
inside we’ve got some interesting layers
inside we’ve got some interesting layers going on this first layer here where it
going on this first layer here where it
going on this first layer here where it cooled most rapidly as it landed on the
cooled most rapidly as it landed on the
cooled most rapidly as it landed on the pan that almost looks like it’s just a
pan that almost looks like it’s just a
pan that almost looks like it’s just a clear layer I think you could almost see
clear layer I think you could almost see
clear layer I think you could almost see through that nice and smooth that first
through that nice and smooth that first
through that nice and smooth that first layer maybe a sixteenth of an inch thick
layer maybe a sixteenth of an inch thick
layer maybe a sixteenth of an inch thick and then we have some salt crystal that
and then we have some salt crystal that
and then we have some salt crystal that is a little bit more opaque colored on
is a little bit more opaque colored on
is a little bit more opaque colored on the top half so it’s an interesting
the top half so it’s an interesting
the top half so it’s an interesting division but we’ve definitely got a
division but we’ve definitely got a
division but we’ve definitely got a crystalline structure that’s formed here
crystalline structure that’s formed here
crystalline structure that’s formed here it’s some part of it I’m not sure if
it’s some part of it I’m not sure if
it’s some part of it I’m not sure if salt is capable of cooling into a non
salt is capable of cooling into a non
salt is capable of cooling into a non crystalline structure or not not very
crystalline structure or not not very
crystalline structure or not not very durable I can pretty easily just break
durable I can pretty easily just break
durable I can pretty easily just break it in my hands and it doesn’t really
it in my hands and it doesn’t really
it in my hands and it doesn’t really seem like it takes the shape of what
seem like it takes the shape of what
seem like it takes the shape of what accorded into this for example is the
accorded into this for example is the
accorded into this for example is the bottom and our pot is pretty smooth on
bottom and our pot is pretty smooth on
bottom and our pot is pretty smooth on the bottom that we’ve got lots of bumps
the bottom that we’ve got lots of bumps
the bottom that we’ve got lots of bumps and wrinkles and spots where it looked
and wrinkles and spots where it looked
and wrinkles and spots where it looked like as it cooled it sort of contorted a
like as it cooled it sort of contorted a
like as it cooled it sort of contorted a little bit so unfortunately I don’t
little bit so unfortunately I don’t
little bit so unfortunately I don’t think salt would make a very good
think salt would make a very good
think salt would make a very good casting material I’ve got one more test
casting material I’ve got one more test
casting material I’ve got one more test that I feel like I need to try inspired
that I feel like I need to try inspired
that I feel like I need to try inspired by poking that piece of poured out salt
by poking that piece of poured out salt
by poking that piece of poured out salt with our icicle watching how much it
with our icicle watching how much it
with our icicle watching how much it piston sizzled I’m gonna try melting
piston sizzled I’m gonna try melting
piston sizzled I’m gonna try melting down some more salt and then dropping a
down some more salt and then dropping a
down some more salt and then dropping a piece of ice into the molten salt see
piece of ice into the molten salt see
piece of ice into the molten salt see what will happen I suspect that the ice
what will happen I suspect that the ice
what will happen I suspect that the ice will turn the water and then to steam so
will turn the water and then to steam so
will turn the water and then to steam so fast that it’s kind of gonna make the
fast that it’s kind of gonna make the
fast that it’s kind of gonna make the salt spray out of there so I’m gonna
salt spray out of there so I’m gonna
salt spray out of there so I’m gonna make sure that I can stand a good
make sure that I can stand a good
make sure that I can stand a good distance away as I drop that ice cube in
distance away as I drop that ice cube in
distance away as I drop that ice cube in there now this time we’re trying out the
there now this time we’re trying out the
there now this time we’re trying out the kosher salt which
kosher salt which
kosher salt which I think is pretty much exactly the same
I think is pretty much exactly the same
I think is pretty much exactly the same as the other salt is just slightly
as the other salt is just slightly
as the other salt is just slightly larger pieces
I’ve got a little chunk of ice on my
I’ve got a little chunk of ice on my shovel and I’m gonna use that to drop
shovel and I’m gonna use that to drop
shovel and I’m gonna use that to drop the ice down into the molten salt
the ice down into the molten salt
the ice down into the molten salt because I don’t want to be very close to
because I don’t want to be very close to
because I don’t want to be very close to it when it drops in in case it splashes
it when it drops in in case it splashes
it when it drops in in case it splashes up everywhere it popped right out I’m
up everywhere it popped right out I’m
up everywhere it popped right out I’m gonna drop it back in it rejects it
gonna drop it back in it rejects it
gonna drop it back in it rejects it every time you jump it out there’s
every time you jump it out there’s
every time you jump it out there’s barely any salt in there all right you
barely any salt in there all right you
barely any salt in there all right you were done I missed that’s funny you can
were done I missed that’s funny you can
were done I missed that’s funny you can see how much salt gets shot out these
see how much salt gets shot out these
see how much salt gets shot out these are little beads of salt that I think
are little beads of salt that I think
are little beads of salt that I think cooled down someone in the air because
cooled down someone in the air because
cooled down someone in the air because it’s a cool down they’re probably still
it’s a cool down they’re probably still
it’s a cool down they’re probably still very hot not much salt left in our
very hot not much salt left in our
very hot not much salt left in our container at this point molten salt
container at this point molten salt
container at this point molten salt pretty fun to play with it’s very fun
pretty fun to play with it’s very fun
pretty fun to play with it’s very fun consistency it glows orange as we take
consistency it glows orange as we take
consistency it glows orange as we take it out of the kiln at least while we’re
it out of the kiln at least while we’re
it out of the kiln at least while we’re in the darkness of the dome it kind of
in the darkness of the dome it kind of
in the darkness of the dome it kind of rejected the ice cube we drop that in
rejected the ice cube we drop that in
rejected the ice cube we drop that in and they were just pop right back out
and they were just pop right back out
and they were just pop right back out four times in a row that ice cube just
four times in a row that ice cube just
four times in a row that ice cube just got launched out of the crucible and it
got launched out of the crucible and it
got launched out of the crucible and it cools off very quickly after we pour it
cools off very quickly after we pour it
cools off very quickly after we pour it out it’s fun to see how it forms those
out it’s fun to see how it forms those
out it’s fun to see how it forms those crystalline structures on the inside
crystalline structures on the inside
crystalline structures on the inside even though it gets a little bit dirty
even though it gets a little bit dirty
even though it gets a little bit dirty and doesn’t have the same nice white
and doesn’t have the same nice white
and doesn’t have the same nice white color as it did when we poured it into
color as it did when we poured it into
color as it did when we poured it into the crucible and speaking of crucibles I
the crucible and speaking of crucibles I
the crucible and speaking of crucibles I think we’ve now added a bit of molten
think we’ve now added a bit of molten
think we’ve now added a bit of molten salt that has solidified down onto the
salt that has solidified down onto the
salt that has solidified down onto the bottom of it that should ship off pretty
bottom of it that should ship off pretty
bottom of it that should ship off pretty easily hey guys thanks for watching if
easily hey guys thanks for watching if
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