Description

Aluminium Hydroxybis[2,2'-Methylen-Bis(4,6-Di-tert-Butylphenyl)Phosphate] is a high-performance organophosphorus-based additive widely recognized for its exceptional stabilizing and antioxidant properties. This compound is engineered to provide superior thermal and oxidative stability to polymers, significantly extending their service life under demanding conditions. It is an essential component for manufacturers in the plastics, synthetic fiber, and specialty lubricant industries seeking to enhance the durability and performance of their high-value products.

Application

• Polymer Stabilizer: Primary application as a highly effective antioxidant and thermal stabilizer for polyolefins (PP, PE), engineering plastics, and synthetic fibers to prevent degradation during processing and long-term use.
• Lubricant & Grease Additive: Used in formulating high-performance synthetic lubricants and greases to improve oxidation resistance and extend drain intervals in automotive and industrial applications.
• Adhesive & Sealant Formulations: Enhances the thermal stability and prevents the embrittlement of hot-melt adhesives, sealants, and other polymer-based bonding agents.
• Elastomer Protection: Imparts antioxidant properties to synthetic rubbers and thermoplastic elastomers (TPEs), protecting against heat and oxygen-induced cracking and loss of elasticity.
• Coating Additive: Incorporated into protective coatings and wire enamels to improve their resistance to thermal aging and environmental weathering.
• Masterbatch Production: A key active ingredient in antioxidant and stabilizer concentrate masterbatches for simplified and uniform dispersion in polymer compounding.

Basic Information

Product Name	Aluminium Hydroxybis[2,2'-Methylen-Bis(4,6-Di-tert-Butylphenyl)Phosphate]
CAS No.	151841-65-5
Molecular Formula	C58H84AlO8P2
Molecular Weight	1015.2 g/mol
Synonyms	Aluminum Hydroxybis[2,2'-Methylenebis(4,6-di-tert-butylphenyl) Phosphate]; Aluminum Bis[2,2'-Methylenebis(4,6-di-tert-butylphenyl) Phosphate] Hydroxide; ADK STAB 1178 (Trade Name); Irgastab 1178 (Trade Name); Aluminium Hydroxy Bis(2,2'-Methylenebis(4,6-di-tert-butylphenyl)phosphate); Aluminum Hydroxide Bis(Methylenebis(4,6-di-tert-butylphenyl)phosphate); Antioxidant 1178; Aluminum Phosphite Complex
EINECS	Contact for details

Quality Control

Our production of Aluminium Hydroxybis[2,2'-Methylen-Bis(4,6-Di-tert-Butylphenyl)Phosphate] adheres to a stringent quality management system to ensure batch-to-batch consistency and high purity. Each lot is comprehensively tested against established internal specifications, which typically include assay, melting point, and specific impurity profiles. Certificates of Analysis (COA) documenting these results are provided with every shipment to support your quality assurance protocols.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after initial opening to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms
Assay (Al Content)	≥ 2.6 %
Melting Point	220 - 235 °C
Loss on Drying	≤ 0.5 %
Ash Content	≤ 0.2 %

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