Supercritical carbon dioxide (sCO2) | How does it look like?

Liquid CO2 is heated in a pressure vessel and brought into the supercritical state.

CO2 becomes supercitical at 7.4 MPa and ~31°C.
In this experiment, liquid CO2 is enclosed in a pressure vessel. Pressure and temperature are increased by using a heating cartridge, so that the CO2 changes to the supercritical state when the critical point (31°C, 7.4 MPa) is reached.
Afterwards cooling of the pressure vessel is followed by an abrupt re-condensation.

[RuslanShaov]

Amazing to see how tiny little droplets starts to drip from the top like a rain.

[JohnDoe-poku]

You ask how does it look like, but you never stopped to ask why does it look like.

[pabloale]

Hi, super interesting experiment. By chance, could you explain how you built the the pressure vessel. I am trying also to play around CO2 and I would like to make something similar. Thanks

[TheMrGoncharov]

what if you heat it up till 32 or 33 degrees? would it stay supercritical, and then will recondence once cool down to 30?

[purpleapple]

To think that Venus is completely surrounded by this stuff

[evanraymond]

Wowww very interesting, really cool.. thanks

[danielemazzi]

nice, just a question: during the initial state with the CO2 in liquid state, do you have any gas in cover gas to keep the pressure to 7, 4 MPa ? Is there any other gas inside over than CO2 ?

[_intergalacticaliyah]

That is so cool. It looks like flubber if it was a gas

[winproduction]

Hello so recondensation mean from supercritical fluid to liquid?

[pkrohilla]

How it will behave if co2 would have some water composition?

[poyntor]

What is a stuff installed inside? sensors?