Use only data present in the text. lf data is not present in the text, type "None". Summarize the value
of the density in the following text in a form of a json of: Material, Value, Unit
{These separation conditions were quite different; tests 1 and 2 applied a CO2 density of 192 g/dm3 at the top of the column (8 MPa of pressure and a temperature gradient of 52-56-60 °C) and a ratio between oil charged and fluid passed through the column of 5.7 ml/kg, while tests 13 and 14 adopted a fluid density of 236 g/dm3 (9 MPa of pressure and temperatures of 52-56-60 °C) and a feed: solvent ratio of 10} Repeat the request word for word before giving your answer.
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