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Discussion Forums - The Hendrix Group
HomeHomeDiscussionsDiscussionsMaterial Select...Material Select...Citric acid in carbon steelCitric acid in carbon steel
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8/1/2007 9:00 AM
 
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We have an evaporation column which is made of carbon steel. The column is running at 145C and pressure about 0.6barg and pH around 10-13. With this condition, can somebody gives advise whether citric acid can be added to the column? The citric acid will be used as an agent to optimize current process condition.
 
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8/1/2007 9:00 AM
 
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According to NACE COR-SUR Database Carbon steel is listed for citric acid service with the following specified range. Concentration(%) temp. (%C2°F) corrosion rate (mpy) Steels, Carbon/ Low Alloy citric acid 5 %E2%80“ 15 (%) 25 %E2%80“ 125(Deg.F), >50(MPY) Steels, Carbon/ Low Alloy citric acid 5 %E2%80“ 60 25 %E2%80“ 75 >50 regards,
 
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