Description

Stearyl Ketene Dimer CAS NO 24430-01-1 is a high-purity, long-chain alkyl ketene dimer (AKD) primarily used as a reactive sizing agent. This compound is critical for imparting permanent hydrophobicity and enhancing the quality of paper and paperboard products. It is an essential raw material for manufacturers in the paper and packaging industries seeking to improve water resistance, printability, and dimensional stability.

Application

• Paper Sizing Agent: The primary application is as an internal and surface sizing agent to provide permanent hydrophobicity to paper and paperboard, improving resistance to water, ink, and other liquids.
• Packaging Material Production: Used in the manufacture of liquid packaging boards, corrugated containers, and food-grade packaging to enhance strength and barrier properties.
• Specialty Paper Manufacturing: Essential for producing release papers, label stocks, and photographic papers where controlled surface properties are required.
• Chemical Intermediate: Serves as a key intermediate in organic synthesis for producing esters, amides, and other derivatives used in lubricants and surface modifiers.
• Textile and Fiber Treatment: Applied to modify the surface energy of synthetic fibers and non-wovens to achieve water-repellent characteristics.
• Construction Chemicals: Incorporated into formulations for waterproofing agents and concrete admixtures.

Basic Information

Product Name	Stearyl Ketene Dimer
CAS No.	24430-01-1
Molecular Formula	C38H74O
Molecular Weight	546.99 g/mol
Synonyms	Octadecyl Ketene Dimer; n-Octadecyl Ketene Dimer; Stearic Acid Ketene Dimer; AKD (Stearyl); 2-(Heptadecyl)-4-methylen-1,3-dioxolane; 2-Octadecyl-1,3-dioxol-4-ene; Ketene Dimer, Stearyl; EINECS 246-222-6
EINECS	246-222-6

Quality Control

Our Stearyl Ketene Dimer is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including chromatography and spectroscopy, to ensure high purity and consistent performance. A comprehensive Certificate of Analysis (COA) detailing assay, identity, and impurity profiles is provided with every shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent contact with atmospheric moisture. Keep away from heat sources and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white waxy solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Melting Point	55 - 65 °C
Acid Value	≤ 5.0 mg KOH/g
Iodine Value	≤ 2.0 g I2/100g
Moisture (KF)	≤ 0.5%

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