I found this data table and in density row, the information seems wrong to me. The problem is that some of these fluorocarbons are in gas form while others are in liquid form at the temperature that is connected to the density number.
There are six fluorocarbons, first two have density specified at 20 degree Celsius, while other four have it at 25 degree Celsius. If we compare the boiling points to the temperatures at which the density was specified, we would see that first two fluorocarbons would be in gas form, while later four in liquid form.
Going from gas to liquid creates large density changes yet these substances seems to have density numbers suggesting that the first two fluorocarbons are in liquid form which is weird and unexpected in my opinion as their boiling points and density temperature specs suggest that at the temperature at which density was measured, they should clearly be in gas state.
Is that error by author of that table or do I not know something that would help me understand it?