Description

Zinc Dioctyl Diphosphonate is an organophosphorus compound widely utilized as a high-performance metal deactivator and antioxidant. Its primary value lies in its ability to chelate metal ions, thereby inhibiting metal-catalyzed degradation processes in various organic matrices. This product is essential for formulators and manufacturers in the polymer, lubricant, and fuel industries seeking to enhance the stability and longevity of their products.

Application

Zinc Dioctyl Diphosphonate serves as a critical additive in several industrial sectors due to its metal deactivating properties.

• Polymer Stabilization: Used as a metal deactivator in polyolefins (e.g., polyethylene, polypropylene) to prevent catalyst residue-induced degradation during processing and service life.
• Lubricant & Grease Additive: Functions as an antioxidant and anti-wear agent in industrial lubricants and greases, protecting machinery components from metal-catalyzed oxidation.
• Fuel & Oil Additive: Employed in gasoline and diesel fuels, as well as transformer oils, to chelate copper and other metals that accelerate oxidation and sludge formation.
• Adhesive & Sealant Formulations: Enhances the thermal and oxidative stability of adhesive systems, particularly those in contact with metal surfaces.
• Rubber Industry: Acts as a non-staining stabilizer in certain synthetic rubber compounds to prevent metal-catalyzed aging.
• Industrial Fluid Packages: A key component in additive packages for hydraulic fluids, turbine oils, and other specialty industrial fluids requiring extended service life.

Basic Information

Product Name	Zinc Dioctyl Diphosphonate
CAS No.	84030-27-3
Molecular Formula	C32H68O6P2Zn
Molecular Weight	684.2 g/mol
Synonyms	Zinc Bis[di(2-ethylhexyl)phosphonate]; Zinc Di(2-ethylhexyl)phosphonate; Dioctylphosphonic Acid Zinc Salt; Zinc Dialkylphosphonate; ZDP; Metal Deactivator ZDDP (related class); Antioxidant 84030-27-3; Zinc (2-ethylhexyl)phosphonate
EINECS	Contact for details

Quality Control

Our Zinc Dioctyl Diphosphonate is manufactured under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure consistent composition, purity, and performance. We provide comprehensive Certificates of Analysis (COA) with key parameters such as zinc content, phosphonate content, and acidity. Our quality commitment aligns with industrial chemical standards, and specifications can be adjusted to meet specific customer requirements.

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); ensure containers are kept tightly sealed to prevent absorption of atmospheric moisture which may affect product performance.

Specification

Item	Specification
Appearance	Clear, viscous liquid to waxy solid
Identification (IR)	Conforms
Assay (Zinc Content)	≥ 9.5 %
Acid Value	≤ 1.0 mg KOH/g
Moisture (Karl Fischer)	≤ 0.5 %
Color (Gardner)	≤ 3

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