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The characteristic of styrene monomer
 
Characteristic of styrene monomer
 
About the disappearance time by evaporation of HNS
(1) The steam pressure according to sea water temperature is computed.
 
(2) From the amount of liquid outflows, and the value of steam pressure, the attainment time to the maximum diffusion radius is computed by a table.
 
(3) Time (Ta) until a substance disappears by evaporation refers to carrying out abbreviation correlation by 10 times the attainment time (Tmax) to the maximum diffusion radius.
 
 
Anton's formula Calculation of the steam pressure to depend
 Three steam pressures at a certain temperature is inputted.
 The temperature of steam pressure 760mmHg inputs Boiling point
 
Temperature
[℃]
Steampressure
[mmHg]
log
20 4.5 0.65321251
145.2 760 2.88081359
80 90 1.95424251
 
 Temperature of the spot 12℃ Steam pressure 2.682116 mmHg
 
(1) Disappearance time when 50kl of styrene flows out in a situation with a sea water temperature of 12 degrees?
= Steam pressure is 2.6mmHg.
 
(2) Attainment time to the maximum diffusion radius.= 55 minutes
 
(3) 10 times this is 550 minutes (about 9 hours) which becomes a standard of disappearance time.


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