Description

Irgastab Fs 042 is a specialized chemical additive designed to enhance the performance and longevity of various polymer systems. Its primary value lies in its ability to act as a highly effective stabilizer, protecting materials from degradation caused by heat, light, and other environmental factors. This product is essential for manufacturers in the plastics, coatings, and synthetic fiber industries who require reliable protection for their formulations to ensure product quality and durability.

Application

• As a light and heat stabilizer in polyolefins such as polypropylene (PP) and polyethylene (PE).
• To improve the long-term thermal stability of engineering plastics and thermoplastic elastomers.
• In the stabilization of adhesives and sealants to prevent premature aging and maintain performance.
• For protecting polymer coatings and films from UV-induced degradation, extending service life.
• As an additive in synthetic fibers to enhance resistance to weathering and processing conditions.
• In masterbatch formulations for convenient and uniform dispersion of stabilizer properties.

Basic Information

Product Name	Irgastab Fs 042
CAS No.	143925-92-2
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	FS 042; Irgastab FS042; Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1); Tris(2,4-di-tert-butylphenyl) phosphite; Antioxidant 168; Phosphite stabilizer 168; Hostanox PAR 24; Doverphos S-9228; Alkanox 240; Ultranox 626
EINECS	Contact for details

Quality Control

Our Irgastab Fs 042 is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. The product undergoes rigorous analytical testing, including chromatography and spectroscopy, to confirm its identity and performance specifications. A Certificate of Analysis (COA) detailing purity, assay, and key physical properties is provided with every shipment to guarantee it meets the stringent requirements of industrial and specialty chemical 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 material is hygroscopic (moisture-sensitive); keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	White to off-white powder or flakes
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0 %
Melting Point	180 - 185 °C
Volatile Matter	≤ 0.5 %
Acidity (as H3PO4)	≤ 0.1 %

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