Products tagged with 'ethylene glycol'
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Product Number:
51322-17593-SG
Author:
Behzad Bavarian, Koushik Kosanam, Lisa Reiner
Publication Date:
2022
$20.00
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Product Number:
51324-20382-SG
Author:
Behzad Bavarian; Lisa Reiner
Publication Date:
2024
$40.00
Different vapor phase corrosion inhibitors were evaluated to determine their corrosion inhibition for aluminum alloys in Ethylene glycol (C2H6O2) coolant mixture. When the temperature exceeds 80°C, ethylene glycol can decompose into organic acids. The resulting acidic environments cause severe localized corrosion of aluminum alloys. The corrosion behavior was studied at multiple temperatures in different corrosion inhibitors using different concentrations. Corrosion inhibitor VCI-A, VCI-B, VCI-C, and VCI-D at 2.5-3.0% dosage showed excellent corrosion protection. VCI-A, VCI-C and VCI-D maintained a steady, low corrosion rate during long term exposure by neutralizing pH and forming a hydrophobic film. They increase the polarization resistance by a significant factor, therefore, lowered corrosion rate. VCI-B inhibitor, also showed the ability to reduce the corrosion rate of aluminum in ethylene glycol solutions. However, due to its high pH chemistry, the effective dosage should be maintained at <2.5% to avoid any potential increase in pH that can promote localized corrosion or under-deposit corrosion attacks of aluminum alloys. The results of this investigation demonstrated that these inhibitors can lower the corrosion rate in water-ethylene glycol solutions by neutralizing pH and forming stable films.
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