Description

Sodium Stearyl Phthalamate CAS NO 86432-23-7 is a specialized organic salt widely utilized as a high-performance processing aid and additive. Its primary value lies in its ability to function as an effective internal and external lubricant, improving flow properties and mold release in polymer processing. This compound is essential for manufacturers in the plastics, rubber, and specialty chemical industries seeking to enhance production efficiency and final product quality.

Application

• As a highly effective internal lubricant and mold release agent in PVC, polyolefins, and engineering plastics processing.
• Used as a flow promoter and anti-blocking agent in polymer compounding and extrusion operations.
• Functions as a surface modifier and dispersing aid in pigment and filler masterbatches.
• Acts as a processing stabilizer to reduce melt viscosity and prevent equipment fouling.
• Employed in the production of synthetic fibers and films to improve spin finish and surface characteristics.
• Utilized as an additive in rubber formulations to aid in mixing and calendering.
• Serves as a waterproofing agent and hydrophobic modifier in certain coatings and construction materials.
• Potential use as an intermediate in the synthesis of other specialty surfactants and functional chemicals.

Basic Information

Product Name	Sodium Stearyl Phthalamate
CAS No.	86432-23-7
Molecular Formula	C26H40NNaO4
Molecular Weight	453.59 g/mol
Synonyms	Stearyl Phthalamic Acid Sodium Salt; N-Stearylphthalamic Acid Sodium Salt; Sodium N-Octadecylphthalamate; Octadecylammonium Phthalate Sodium Salt; SSP; Sodium Salt of Stearyl Phthalamic Acid; Phthalamic Acid, N-Stearyl-, Sodium Salt; 1-Octadecanaminium, N-(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)-, inner salt
EINECS	Contact for details

Quality Control

Our Sodium Stearyl Phthalamate is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure consistent purity, performance, and compliance with agreed specifications. A comprehensive Certificate of Analysis (COA) detailing assay, identity, and impurity profiles is provided with every shipment. We are committed to meeting the quality standards required for industrial and specialty chemical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and must be kept in its original, sealed packaging until use to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	White to off-white powder or flakes
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Melting Point	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	Contact for details

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