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Old   August 5, 2008, 14:42
Default Urea properties
  #1
Lokesh
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Hi,

I am looking for all urea properties. If you source tell me source, it would be fine.

Thanks in advance,

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Old   August 7, 2008, 03:51
Default Re: Urea properties
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Polly Eda
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if you are looking for properties of urea solution, have a look on the BASF website. keyword 'Adblue'.
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Old   August 7, 2008, 04:52
Default Re: Urea properties
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Lokesh
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hey thx,

i searched under products. Could not find enough information. And search also for Adblue, still no results. if you could tell me or send a link, i will appreciate.

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Old   August 8, 2008, 03:06
Default Re: Urea properties
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Polly Eda
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http://www.adblue-service.de/qualitaet.htm

it's in german, but should not be too difficult to understand
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Old   August 11, 2008, 10:58
Default Re: Urea properties
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Lokesh
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Hey Polly,

Still some of the properties are missing

Heat of vaporization Heat of formation temperature of formation thermal expansion coefficient

All above properties are need to plug in Star-CD.

Thanks again,

From Lokesh
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Old   August 14, 2008, 04:16
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Polly Eda
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use the values of water if you don't know them. that should not be too far away from adblue. Are you calculating the chemistry of urea hydrolysis as well?
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Old   August 14, 2008, 15:36
Default Re: Urea properties
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Lokesh
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yep i am calculating some thing like this

The heat needed to melt 1 kg of urea solution could be calculated in the following way:

1 kg solution = 325 g urea + 675 g H2O

325 g urea = 5.42 mole urea 625 g H2O = 37.5 mole H2O

5.42 mole x 15.074 kJ/mole = 81.70 kJ 37.5 mole x 6.012 kJ/mole = 225.45 kJ

--------------------

= 307.15 kJ / kg urea solution

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