Description

Sodium Diisononyl Phosphate is an organophosphate salt widely recognized for its excellent surfactant and anti-corrosion properties. This compound is valued for its ability to function effectively as an emulsifier, dispersant, and lubricant additive in demanding industrial formulations. It serves as a critical performance additive for manufacturers in the lubricants, metalworking fluids, and polymer stabilization sectors, where consistent quality and reliable supply are paramount.

Application

• Lubricant & Grease Additive: Acts as an anti-wear and extreme pressure (EP) agent, enhancing the performance and longevity of industrial and automotive lubricants.
• Metalworking Fluids: Serves as a key component in coolants and cutting fluids, providing lubrication, corrosion inhibition, and emulsion stability.
• Polymer Stabilizer: Used as a co-stabilizer in PVC and other polymer systems to improve heat stability and processability.
• Emulsifier & Dispersant: Functions in agricultural and industrial emulsion formulations to stabilize oil-in-water systems and disperse active ingredients.
• Detergent & Cleaning Formulations: Incorporated into industrial and institutional cleaning products for its surfactant and degreasing properties.
• Corrosion Inhibitor: Applied in water treatment and protective coating formulations to prevent rust and scale formation on metal surfaces.

Basic Information

Product Name	Sodium Diisononyl Phosphate
CAS No.	94247-21-9
Molecular Formula	C18H39O4PNa (typical)
Molecular Weight	~ 373.46 g/mol (typical)
Synonyms	Diisononyl Phosphoric Acid Sodium Salt; Sodium Diisononyl Phosphate Ester; Phosphoric Acid, Diisononyl Ester, Sodium Salt; Sodium Diisononyl Phosphate Ester; Isononanol Phosphate Sodium Salt; Sodium Di(isononyl) Phosphate; Phospholane ISN Na; Anti-wear Additive AW 01 (trade name examples)
EINECS	Contact for details

Quality Control

Our Sodium Diisononyl Phosphate is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance reliability. Production adheres to relevant ISO standards, and our quality control laboratory performs comprehensive testing including assay, pH, moisture content, and ionic composition analysis. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications.

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 product is hygroscopic (moisture-sensitive). Keep the container tightly sealed when not in use to minimize exposure to atmospheric moisture, which can affect product quality.

Specification

Item	Specification
Appearance	Clear to pale yellow viscous liquid
Assay (as active)	≥ 95.0%
pH (10% solution)	6.0 - 8.0
Moisture (Karl Fischer)	≤ 2.0%
Identification (IR)	Conforms
Heavy Metals (as Pb)	≤ 10 ppm
Viscosity (at 25°C)	Contact for details

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