Description

Phosphoric Acid, 2-Ethylhexyl Ester, Sodium Salt is a high-performance anionic surfactant and corrosion inhibitor derived from phosphoric acid. This compound is valued for its excellent emulsifying, wetting, and anti-corrosive properties in demanding industrial formulations. It is a critical component for manufacturers in the lubricant, metalworking, and specialty chemical industries seeking to enhance product stability and performance under challenging conditions.

Application

• Primary corrosion inhibitor and anti-rust additive in metalworking fluids, hydraulic oils, and industrial lubricants.
• Key emulsifying agent for formulating stable oil-in-water (O/W) emulsions in lubricants and coatings.
• Effective wetting and dispersing agent in pigment preparations, agrochemicals, and textile processing aids.
• Functional additive in detergent and cleaning formulations for enhanced surface activity and soil removal.
• Stabilizer and co-emulsifier in polymerization processes and synthetic latex production.
• Component in specialty surfactant blends for enhanced performance in extreme pH or high electrolyte environments.

Basic Information

Product Name	Phosphoric Acid, 2-Ethylhexyl Ester, Sodium Salt
CAS No.	68186-64-1
Molecular Formula	C8H17NaO4P (for mono-ester) *
Molecular Weight	~ 246.18 g/mol (for mono-ester) *
Synonyms	Sodium 2-Ethylhexyl Phosphate
Sodium Mono(2-Ethylhexyl) Phosphate
2-Ethylhexyl Phosphate, Sodium Salt
Sodium 2-Ethylhexyl Hydrogen Phosphate
Phosphoric Acid Mono(2-Ethylhexyl) Ester Sodium Salt
Octyl Phosphate, Sodium Salt (branched)
Surfactant PE513 (common trade name reference)
EINECS	Contact for details

* Note: Commercial product is often a mixture of mono- and di-esters. The formula and weight are representative. Contact us for specific composition data.

Quality Control

Our Phosphoric Acid, 2-Ethylhexyl Ester, Sodium Salt is produced under a stringent quality management system. Every batch undergoes rigorous analytical testing to ensure consistent purity, active content, and performance characteristics for your specific application. Certificates of Analysis (COA) detailing assay, pH, moisture content, and other critical parameters are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); ensure containers are kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Complies
Assay (Active Content)	≥ 95.0 %
pH (10% aqueous solution)	6.0 - 8.0
Moisture (Karl Fischer)	≤ 2.0 %
Heavy Metals (as Pb)	≤ 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.