Vanconol® FPAM-S200 Water-Soluble Imidazoline Corrosion Inhibitor

Fatty Acid Polyamine Imidazoline Amide FPAM-S200 Series Corrosion Inhibitor

This product is a new high-efficiency corrosion inhibitor intermediate, prepared via dehydration condensation of carboxylic acid, polyethylenepolyamine, and acetic anhydride. It can be used as a raw material for formulating oil & gas field corrosion inhibitors and high-temperature petrochemical refinery corrosion inhibitors.

Chemical Composition

Mixture of fatty acid polyamine imidazolines.

Typical Grades

Grade	Designation	Ethyleneamine Number
FPAM-S201	Oleic acid-based polyamine imidazoline amide	1 to 4
FPAM-S202	Tall oil-based polyamine imidazoline amide	1 to 4

Advantages & Benefits

High cyclization rate: Advanced reaction technology promotes amide ring closure, achieving high conversion to imidazoline products.

Key component of water-soluble imidazoline corrosion inhibitors with excellent solubility.

Good coordination stability: The imidazoline ring and imino groups enable multi-point anchoring onto metal surfaces, enhancing film robustness.

Good film-forming properties: Due to its unique molecular and electronic structure, it strongly adsorbs onto solid metal surfaces to form a dense protective film, helping impede corrosion.

Typical Properties

Item	Range	Test Method
Appearance (25°C)	Yellow or reddish-brown transparent liquid	Visual
Density	0.89–0.98	Gravimetric
Non-volatile content	≥97%	Drying method
Cyclization rate %	≥83%	Liquid chromatography

Applications

Corrosion inhibitor synthesis: By reacting with carboxylic acids, organic ketones, aldehydes, amines and other raw materials, high-performance corrosion inhibitors such as imidazoline amides, imidazoline Schiff bases, and imidazoline Mannich bases can be obtained.

Water treatment: This is the most widely used application area for corrosion inhibitors, including feed water purification, circulating water treatment, cooling water systems, and boiler water treatment. Corrosion inhibitors effectively help prevent the formation of hard scale and corrosion in these systems.

Petrochemical industry: In petroleum processing and chemical production, corrosion inhibitors are used to control corrosion of equipment and pipelines.

Crude oil production: Protection of downhole equipment, corrosion protection during acidizing operations, gathering pipelines and storage tanks, and corrosion inhibition for water injection systems.

Steel manufacturing: Corrosion inhibitors are used to protect equipment and pipelines from corrosion during steel production.

Other industries: Also widely applied in power generation, textiles, food processing, pharmaceuticals, and other sectors.

Handling Recommendations

Wear appropriate personal protective equipment before use;

Check whether the material in the drum has solidified. If solidified, pre-melt it (using hot water or low-temperature baking at <80°C) before dispensing;

Without considering synergists, the recommended dosage of this product is 15 ppm or above based on the final working environment (e.g., high-temperature refinery corrosion inhibitor applications); however, laboratory testing is recommended to verify optimal performance.

After formulation, neutralize with an acid (acetic acid or other neutralizing agents) to pH 5–9. The prepared solution should be water-soluble (a 10% solution appears transparent) to confirm complete neutralization.

Storage & Transportation

a)    The product is packaged in iron drums with a net content of 220 L per drum. Alternative packaging can be arranged upon customer request.

b)    During storage and transportation, protect from sunlight, heat, moisture, and impact. Store in a clean, cool, dry warehouse.

c)    After use, seal any remaining product in the container to prevent evaporation.

d)    The shelf life of this product is one year at ambient temperature.