Viscosity of 25% Caustic Soda at -8 degrees Celsius
Viscosity of 25% Caustic Soda at -8 degrees Celsius
(OP)
thread798-309187: viscosity of caustic soda solution at lower temperatures
Hi hi,
The previous discussion was about 20% Caustic at -10 to -20 degrees Celsius.
Where could I find concrete proof (graphs) for 25% Caustic at -8 to -10 degrees Celsius?
I have tried to find the Orica Chemicals handbook, but I could not find anything.
Hi hi,
The previous discussion was about 20% Caustic at -10 to -20 degrees Celsius.
Where could I find concrete proof (graphs) for 25% Caustic at -8 to -10 degrees Celsius?
I have tried to find the Orica Chemicals handbook, but I could not find anything.





RE: Viscosity of 25% Caustic Soda at -8 degrees Celsius
For 25% wt Caustic Solution, the temperature at which solution turns completely solid is -18 degC. According to the GBH Manual for Caustic pumps (see attached file), for 25% wt Caustic solution solidification already starts between -13 and -14 degC (see page 31 of the document), which is very close to -8 degC. I think that extrapolating Viscosity curve for lower temperatures than those shown on the charts will likely introduce potentially large error.
Can you hire a lab to do the actual viscosity measurement for you? That will eliminate any uncertainty.
http://www.oxy.com/OurBusinesses/Chemicals/Product...
http://msdssearch.dow.com/PublishedLiteratureDOWCO...
Dejan IVANOVIC
Process Engineer, MSChE
RE: Viscosity of 25% Caustic Soda at -8 degrees Celsius
http://www.iapws.jp/Proceedings/Symposium02/086Ale...
RE: Viscosity of 25% Caustic Soda at -8 degrees Celsius
Dejan IVANOVIC
Process Engineer, MSChE
RE: Viscosity of 25% Caustic Soda at -8 degrees Celsius
http://msdssearch.dow.com/PublishedLiteratureDOWCO...
RE: Viscosity of 25% Caustic Soda at -8 degrees Celsius
I think the lab is a good option.
Go well