let’s take an example: if we have a glove-box filled with helium at 5 bars at room temperature which is far beyond its critical point, what actually it would be like ?
would it be like a normal gas ? would it be like a liquid ? or it will be like a condensed vapors ? can this supercritical fluid dissolve salts for example ? would it quench hot metals like water ?
if I put may hands inside this fluid would it feels like putting my hands inside a water ? or it feel like a normal air ?
is supercritical fluid a special types of a liquid ? if no, why then some SCFs used as a solvent ?
I searched a lot but really can’t find any clear answer explains what they ar exactly.
Note: this is not duplicate, I asking about the nature of SCFs while the "duplicated" question was asking about room temperature SCFs which is clearly different.