Phosphate Esters are molecules derived from alcohols and phosphorous anhydride or polyphosphoric acid. They are classified as organophosphates due to the phosphate group bonded directly to carbon. Phosphate esters are multifunctional, anionic surfactants that provide wetting, detergency, emulsification, hydrotroping, lubrication, and corrosion inhibition. Those with high phosphorous content are excellent extreme pressure (EP) additives.
Our phosphate esters are used extensively in metalworking and metal cleaning applications as well as in oil field products. They are commonly used in paints and coatings, inks, lubricants, transportation cleaning, agro chemicals, detergents, dispersants, and a wide variety of other industrial applications. We offer phosphate esters in acid form or as neutralized salts.
DePHOS 8028: Low-to-moderate foaming, multifunctional, 80% active, phosphate ester-potassium salt. Exhibits multi-metal corrosion inhibition, lubricity, detergency, wetting, hydrotroping, and scale inhibition. Stable in mild acid and alkaline systems. Suggested for use in industrial applications including cleaners, metalworking formulations, and for oilfield applications.
DePHOS 8028FA: Free-acid version of DePHOS 8028. Gives the formulator flexibility in choosing a neutralizing agent or using in acid form.
DePHOS H-66-872: A 50% active phosphate ester-potassium salt. Excellent low foam hydrotrope for nonionics and anionics in acid and alkaline systems. This economical, biodegradable phosphate ester has been a formulator’s “go-to” hydrotrope for years.
DePHOS HP-739: An oil soluble phosphate ester with high phosphorous content. Excellent EP additive, lubricant, corrosion inhibitor, wetting agent and emulsifier in metal working applications. Becomes water soluble and high foaming when neutralized with water-soluble amines.
DePHOS P-6LF-AS: A virtually non-foaming, water soluble lubricant and hydrotrope with excellent alkaline stability. Highly effective hydrotrope for nonionic surfactants in alkaline formulations such as floor, bathroom, oven, drain and all-purpose cleaners. Well suited for use in metalworking and metal cleaning applications with a VOC content of only 9.7 grams/liter (ASTM E1868-10 / SCAQMD RULE 1144). Approved for use as an inert in non-food pesticides.
DePHOS 4AL: A low to moderate foaming phosphate ester in free acid form. Suggested for use as a lubricant, corrosion inhibitor, and emulsifier in metalworking applications. Highly effective lubricant for aluminum machining applications.
DePHOS QSA-90: An economical, 75% active, aliphatic, high foaming phosphate ester with good detergency and wetting. Recommended as a lower cost alternative to 100% active, higher priced phosphate esters typically used in acid and alkaline cleaners.
DePHOS RA-60: A high foaming, water-soluble, aliphatic phosphate ester in free acid form. Good emulsifier, hydrotrope, and wetting agent. Suggested for use in industrial acid and alkaline cleaners and oilfield applications.
DePHOS 717: A high foaming, water-soluble, aromatic phosphate ester based on NPE-9 and P2O5. It is a mixture of mono and di esters having a typical ratio of mono:di ester slightly greater than 1:1. Recommended for use as an emulsifier, detergent, and corrosion inhibitor for industrial applications including oilfield.
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