Description

2-Hydroxy-3-(Phosphonooxy)Propyl Stearate is a multifunctional organophosphorus compound that combines the properties of a fatty acid ester with a phosphonic acid group. This unique structure makes it a valuable intermediate and functional additive, particularly as a surfactant and emulsifier with excellent metal-chelating and dispersing capabilities. It is primarily utilized in industrial formulations where lubrication, surface modification, and corrosion inhibition are required. Key sectors that rely on this chemical include polymer processing, metalworking fluids, and specialty cleaning agents.

Application

• Polymer Additive: Acts as an internal lubricant and processing aid in PVC and other thermoplastics to improve flow and reduce plate-out.
• Metalworking Fluids: Serves as a key component in synthetic and semi-synthetic coolants and lubricants, providing emulsification, corrosion inhibition, and extreme pressure properties.
• Textile Auxiliaries: Used as a softening agent, antistatic agent, and lubricant in fiber processing and finishing.
• Personal Care & Cosmetics: Functions as an emulsifier and opacifying agent in creams, lotions, and hair care products.
• Industrial Cleaners: Enhances the cleaning and degreasing power of alkaline and acidic formulations for metal surfaces.
• Paper & Pulp Industry: Employed as a dispersant and sizing agent to improve paper quality and process efficiency.
• Agricultural Adjuvants: Used in pesticide and herbicide formulations to improve spreading, adhesion, and penetration on plant surfaces.
• Coatings & Inks: Acts as a wetting and dispersing agent to improve pigment stability and application properties.

Basic Information

Product Name	2-Hydroxy-3-(Phosphonooxy)Propyl Stearate
CAS No.	22002-86-4
Molecular Formula	C₂₁H₄₃O₇P
Molecular Weight	438.53 g/mol
Synonyms	Stearic acid, monoester with 3-hydroxy-2-(phosphonooxy)propyl ester; Glyceryl Stearate Phosphate; Phosphated Glyceryl Stearate; 2,3-Dihydroxypropyl Stearate Hydrogen Phosphate; Glycerol Monostearate Phosphate; Monostearyl Glyceryl Phosphate; Octadecanoic acid, 2-hydroxy-3-(phosphonooxy)propyl ester; GMS-P
EINECS	244-706-7

Quality Control

Our 2-Hydroxy-3-(Phosphonooxy)Propyl Stearate is manufactured under a strict quality management system. Each batch is analyzed to ensure it meets precise specifications for identity, purity, and performance. We provide comprehensive Certificates of Analysis (COA) with key parameters including assay, acid value, and moisture content. Our quality commitment ensures batch-to-batch consistency for your critical industrial applications.

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) and should be kept away from strong acids and organic solvents. Keep the container tightly sealed when not in use to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white waxy solid
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Acid Value	50 - 70 mg KOH/g
Moisture (KF)	≤ 2.0%
Melting Point	55 - 65 °C
Heavy Metals (as Pb)	≤ 10 ppm

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