Description

Zinc Bis(O,o-Dipentyl) Bis(Dithiophosphate) CAS NO 7282-31-7 is a high-performance organometallic compound belonging to the zinc dialkyldithiophosphate (ZDDP) family. It serves as a critical multifunctional additive, primarily valued for its exceptional anti-wear and antioxidant properties in demanding industrial environments. This product is essential for formulators and manufacturers in the lubricants and metalworking fluids sectors who require reliable protection against equipment degradation and oxidative breakdown.

Application

• Primary anti-wear and extreme pressure (EP) additive in engine oils, gear oils, and hydraulic fluids.
• Antioxidant additive to inhibit oil thickening and sludge formation in high-temperature lubricant applications.
• Key component in specialized metalworking fluids and industrial greases for machinery protection.
• Corrosion inhibitor for ferrous and non-ferrous metal surfaces in formulated lubricant packages.
• Used in the formulation of anti-seize compounds and thread lubricants.
• Potential additive in other functional fluids requiring metal surface modification and protection.

Basic Information

Product Name	Zinc Bis(O,o-Dipentyl) Bis(Dithiophosphate)
CAS No.	7282-31-7
Molecular Formula	C₂₀H₄₄O₄P₂S₄Zn
Molecular Weight	612.2 g/mol
Synonyms	Zinc O,O-Dipentyl Dithiophosphate; Zinc Diamyl Dithiophosphate; ZDDP (Dipentyl); Zinc Dialkyldithiophosphate (C5); Anti-wear Additive 7282-31-7; Lubricant Additive ZDDP; Zinc Bis(dipentyl dithiophosphate); Zinc Diamyldithiocarbamate (common misnomer)
EINECS	Contact for details

Quality Control

Our Zinc Bis(O,o-Dipentyl) Bis(Dithiophosphate) is manufactured under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure consistent performance, including assessment of active component concentration, zinc content, and impurity profiles. Certificates of Analysis (COA) detailing key specifications are available upon request to support your quality assurance and regulatory compliance needs.

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 easily oxidized; it is recommended to store under an inert atmosphere (e.g., nitrogen) for long-term preservation and to minimize contact with air. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Clear, pale yellow to amber liquid
Identification (IR)	Conforms to structure
Assay (ZDDP Content)	Min. 95%
Zinc (Zn) Content	9.5 - 11.5 %
Phosphorus (P) Content	9.0 - 11.0 %
Sulfur (S) Content	18.0 - 22.0 %
Density (20°C)	1.10 - 1.25 g/mL
Viscosity (40°C)	Contact for details
Acidity (as H3PO4)	Max. 0.5%

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