What are Filming Amines?
Film Forming Amines (FFA) or Film Forming Amine Product (FFAP) are commonly used in high pressure boilers and cooling systems to prevent corrosion of metal surfaces. Structurally FFAs are long carbon chains with an amine head. The amine attaches to the metal surface and forms a hydrophobic layer that protects the metal. FFAPs offer protection from corrosion, reduce corrosion product transport, provide smooth heat transfer surfaces, and protect equipment during shutdown or layups. FFAPs can be used with or replace conventional corrosion inhibitor treatment regimes. They are applied to different components of the steam cycle including the boiler feedwater, generator, and condensate return lines.
Why Test for Filming Amines?
Correctly measuring the amount of FFAP in your system is critical for optimum performance. Underdosing a system can leave it vulnerable to corrosion such as pitting. Overdosing the system can lead to the creation of micelles, or “gunk balls” as they are commonly known. These can lead to clogged pipes and reduced efficiency. Frequent testing that is consistently administered is best practice to ensure dosing at the correct levels.
About our Test Kits
These visual test kits use the standard methyl orange chemistry but features a unique extraction technique. This extraction eliminates several steps required by other procedures and increases the sensitivity of the test. This test takes 3-minutes total to complete.
Click on a catalog number in the tables below for more information or to purchase a test kit.
The Methyl Orange Method
Reference: ASTM D 2327-80, Mono- and Dioctadecylamines in Water.
The filming amine compound reacts with methyl orange to form a yellow-colored complex that is extracted into an immiscible organic solvent. Results are expressed in ppm (mg/L) octadecylamine.