The Henry coefficients for ethyl acetate and water were not found in Aspen
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Hello, experts. I need to find the Henry’s law constant for ethyl acetate in water, but no data related to this constant appears after making the input. Is it because such information isn’t available in the database? How can I obtain the Henry’s law constant for ethyl acetate and water? Thank you!
Only gases and liquids have Henry constants; liquids do not.
But ethyl acetate dissolves in water; so how can it be absent in the gas phase? At normal temperature and pressure, its saturated vapor pressure is still 25 kPa
At 25°C, the Henry’s law coefficient H is 8.01, with the unit being atm
I’m sorry to ask, but how did you obtain those figures?
Checked in Perry’s Chemical Engineer’s Handbook
Both ethyl acetate and water are polar substances, so the activity coefficient method should be used for calculations; it is sufficient to choose methods such as NRTL or UNIQUAC, without needing to give too much consideration to their Henry coefficients.