Vanconol® FPI-S101MT Thiourea-Modified Imidazoline Corrosion Inhibitor

🎯 Abstract

This product is a novel high-efficiency corrosion inhibitor intermediate prepared by the precise reaction of fatty acid aminoethyl imidazoline with thiourea. It features environmental friendliness, non-toxicity, and is free of heavy metals, demonstrating excellent corrosion inhibition performance against acid corrosion in moderate pH environments. Leveraging advanced closed-loop reaction technology, it achieves a high cyclization rate of ≥83%. The imidazoline ring and imino groups in the molecular structure enable multi-point anchoring onto metal surfaces, providing strong adsorption and forming a dense, stable protective film that effectively blocks corrosion reactions at the source. This product serves as a high-quality raw material for formulating oilfield corrosion inhibitors and high-temperature corrosion inhibitors for petrochemical refining, while being compatible with both water-soluble and oil-soluble formulation requirements. It is widely applied across water treatment, petrochemical, and steel manufacturing industries for corrosion protection.

📊 Key Product Information

Parameter	Specification	Test Method
Product Model	FPI-S101MT	/
Chemical Name	Thiourea-modified oleic acid aminoethyl imidazoline	/
Appearance (25°C)	Yellow to reddish-brown transparent liquid	Visual inspection
pH (1% aqueous solution)	Not specified (recommend verification by testing)	pH meter method
Density (25°C)	0.89–0.98 g/cm³	Gravimetric method
Non-volatile Content	≥97%	Drying method
Cyclization Rate	≥83%	Liquid chromatography
Key Performance Indicators	1. High cyclization rate (≥83%) with excellent imidazoline conversion;2. Strong coordination stability, forming a durable film resistant to detachment;3. Excellent film density with outstanding adsorption and high corrosion inhibition efficiency;4. Significant effectiveness against acid corrosion in moderate pH environments;5. Flexible formulation for water-soluble / oil-soluble corrosion inhibitors;6. Environmentally friendly, non-toxic, and free of heavy metals	Corresponding performance test methods
Safety Statement	Environmentally friendly, non-toxic, free of heavy metals, compliant with applicable industrial safety and environmental standards	Safety testing standards

🛠️ Application Guide

Recommended Application Areas

Water Treatment: Covers feed water purification, circulating water treatment, cooling water systems, and boiler water treatment, effectively inhibiting equipment corrosion and hard scale formation (widely applied corrosion inhibitor domain);

Petrochemical: Corrosion control for equipment and pipelines in petroleum processing and chemical production, suitable for high-temperature operating conditions;

Crude Oil Production: Downhole equipment protection, acidizing corrosion prevention, gathering pipeline and storage tank protection, and water injection system corrosion inhibition;

Steel Manufacturing: Corrosion protection for equipment and pipelines in steel production processes, compatible with corrosive media in production environments;

Other Industries: Corrosion protection for power, textile, food, and pharmaceutical industries, compatible with multiple application scenarios.

Usage and Recommended Dosage

Formulation of Water-Soluble Imidazoline Corrosion Inhibitor

Take 10–30 parts of this product based on the total formulation (adjust according to specific application), add solvent (e.g., methanol), water, and synergists as needed;

Start stirring and slowly add acetic acid until the system becomes fully transparent, controlling pH within 6.5–9;

Add amine reagents (e.g., ethylenediamine, triethylamine) to fine-tune pH to the target value, stir thoroughly, and the product is ready for use.

Formulation of Oil-Soluble Imidazoline Corrosion Inhibitor

Take 10–30 parts of this product based on the total formulation volume (adjust according to specific application), and dilute with a suitable solvent;

Add synergists as needed and stir until the system becomes a transparent liquid; the formulation is then ready for use.

Handling and Dosage Recommendations

Wear complete personal protective equipment (e.g., protective gloves, safety goggles) before handling; avoid direct contact with skin and eyes;

Inspect the material state in the drum before use. If solidification has occurred, pre-melt the product (recommended via hot water bath or low-temperature baking at < 80°C) until fully melted before use to ensure uniform product performance;

The dosage should be adjusted based on the application scenario (10–30 parts). It is recommended to verify the optimal concentration through experiments to help achieve the desired corrosion inhibition performance.

⚠️ Safety and Storage

Safe Handling

Wear personal protective equipment throughout the entire process; avoid direct contact of the material with skin, eyes, and respiratory tract;

In case of skin or eye contact, rinse immediately with plenty of running water for at least 15 minutes; seek medical attention if symptoms persist;

Ensure adequate ventilation at the worksite and keep away from ignition sources and flammable/explosive materials.

Storage and Transportation

Packaging: Iron drum packaging with a standard net content of 220L; custom packaging available upon request;

Storage & Transport Requirements: Protect from sunlight, fire, moisture, and impact during storage and transportation; do not mix or transport with corrosive, flammable, or explosive materials;

Storage Environment: Store in a clean, cool, dry, well-ventilated warehouse, away from heat sources and open flames, and avoid direct sunlight;

Residual Product Handling: Seal the drum opening promptly after use to prevent evaporation or moisture absorption that may affect performance stability;

Shelf Life: Under sealed storage at ambient temperature (~25°C), the product shelf life is one year. After this period, it is recommended to re-test key performance indicators before use.

❓ Frequently Asked Questions (FAQ)

Q1: Does product solidification affect performance?

A1: No. Solidification is a physical state change and does not alter the chemical properties of the product. After complete melting via hot water immersion or low-temperature baking at < 80°C, the product performance remains stable and ready for normal formulation use.

Q2: Which corrosion scenario does this product target most effectively?

A2: This product provides targeted corrosion inhibition against acid corrosion in moderate pH environments, while also delivering effective protection in conventional anti-corrosion scenarios (e.g., equipment and pipeline corrosion).

Q3: What is the key difference between formulating water-soluble and oil-soluble corrosion inhibitors?

A3: Water-soluble products require the addition of water, acetic acid (to adjust pH to 6.5–9), and amine reagents to ensure system transparency; oil-soluble products only require dilution with a solvent and optional addition of synergists, without pH adjustment.

Q4: What does the non-volatile content of ≥97% indicate?

A4: A high non-volatile content indicates a high concentration of active ingredients, enabling more precise dosage during formulation and more stable corrosion inhibition performance, while reducing waste and environmental impact from solvent evaporation.

Q5: How can the shelf life be extended after opening?

A5: Seal the drum opening immediately after opening and store in a cool, dry, well-ventilated warehouse, avoiding moisture, evaporation, or contamination. Use within the shelf life. If beyond the shelf life, test key indicators such as cyclization rate and corrosion inhibition performance before use.

📞 Contact Us for More Information

For detailed technical data sheets, test reports, customized formulation solutions, or business inquiries, please contact us.