Description

4,4'-Isopropylidenediphenol C12-15 Alcohol Phosphite is a specialized organophosphite compound, functioning as a high-performance secondary antioxidant and processing stabilizer. Its primary value lies in its ability to effectively decompose hydroperoxides, thereby preventing polymer degradation and extending material service life during high-temperature processing and long-term use. This product is essential for formulators and manufacturers in the polymer and plastics industries seeking to enhance the thermal stability and color retention of their materials.

Application

• Primary and secondary antioxidant in polyolefins (PP, PE) and engineering plastics (PC, ABS, PA).
• Processing stabilizer for polymers during extrusion, injection molding, and other high-temperature manufacturing processes.
• Stabilizer component in adhesive and sealant formulations to prevent gelation and maintain viscosity.
• Additive in lubricant and grease formulations to inhibit oxidation and deposit formation.
• Stabilizing agent for synthetic fibers to prevent thermal and oxidative yellowing.
• Co-stabilizer in PVC formulations, often used in combination with primary heat stabilizers.
• Protective additive for elastomers and rubber compounds against heat aging.

Basic Information

Product Name	4,4'-Isopropylidenediphenol C12-15 Alcohol Phosphite
CAS No.	96152-48-6
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Bisphenol A (C12-15) Alkyl Phosphite; Phenol, 4,4'-(1-methylethylidene)bis-, mixed esters with C12-15 alcohols and phosphorous acid; Bisphenol A Phosphite (C12-15); Antioxidant 168 (C12-15 alcohol ester variant); Tris(bisphenol A C12-15 alkyl) phosphite; Phosphorous acid, mixed esters with bisphenol A and C12-15 alcohols; Polymer stabilizer 96152-48-6
EINECS	Contact for details

Quality Control

Our production of 4,4'-Isopropylidenediphenol C12-15 Alcohol Phosphite adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. Each lot is analyzed against key parameters including phosphite content, acid value, and color to meet precise customer specifications. A comprehensive Certificate of Analysis (COA) documenting purity, identity, and relevant physical properties is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent absorption of atmospheric moisture, which can compromise product efficacy.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Color (APHA)	≤ 50
Assay (Phosphite Content)	≥ 95.0%
Acid Value	≤ 1.0 mg KOH/g
Identification (IR)	Conforms
Refractive Index (n20D)	Contact for details
Density (20°C)	Contact for details

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