Boiling point atmospheric pressure and

Increased pressure will allow the solvent to remain as a liquid (although it may be above the atmospheric pressure boiling point) and facilitate its transit through the extraction system. Changes in pressure will have little effect on analyte recovery when the applied pressure is well above the minimum required to maintain the solvent in liquid state. Typical ASE extractions work well between 1000 and 2000 psi. 

For the worst case evaluation, the weight of flammable material in a vapor cloud is assumed to be the total quantity of the substance that could be released from a vessel or pipeline. For liquids, this assumption infers that the liquid is above its atmospheric-pressure boiling point and that 100% flashing to vapor occurs. Also, the entire quantity of vapor is assumed to have concentrations between the lower and upper flammability limits and that the entire quantity explodes, with an energy-conversion efficiency e of 0.10. For mixtures, the weight-average heat of combustion would be used in the above equation. 

Cyclohexanone is slightly unstable at its atmospheric pressure boiling point and should be distilled under vacuum or steam distilled to avoid any decomposition. 

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