Description

O,o-Diisopentyl Hydrogen Dithiophosphate, Zinc Salt is an organophosphorus compound primarily valued for its role as an effective extreme pressure additive and anti-wear agent. Its chemical structure provides excellent film strength and friction-reducing properties under high-load conditions. This makes it a critical performance additive for manufacturers of industrial lubricants, metalworking fluids, and grease formulations seeking to enhance equipment protection and operational efficiency.

Application

• Extreme Pressure (EP) Additive in industrial gear oils, hydraulic fluids, and compressor oils.
• Anti-Wear Agent in metalworking fluids and cutting oils for machining operations.
• Friction Modifier in specialized grease formulations for automotive and industrial bearings.
• Corrosion Inhibitor component in lubricant packages for ferrous and non-ferrous metals.
• Additive Package Component for formulating high-performance synthetic and semi-synthetic lubricants.
• Mining and Heavy-Duty Equipment Lubricants where severe operating conditions are present.

Basic Information

Product Name	O,o-Diisopentyl Hydrogen Dithiophosphate, Zinc Salt
CAS No.	7059-15-6
Molecular Formula	C20H44O4P2S4Zn
Molecular Weight	604.1 g/mol
Synonyms	Zinc O,o-Diisopentyl Dithiophosphate; Zinc Diisopentyl Dithiophosphate; ZDIDP; Zinc Dialkyl Dithiophosphate (ZDDP) - Diisopentyl variant; Zinc Bis(O,o-diisopentyl phosphorodithioate); Phosphorodithioic acid, O,O-diisopentyl ester, zinc salt; CAS 7059-15-6; Lubricant Additive 7059-15-6
EINECS	Contact for details

Quality Control

Our production of O,o-Diisopentyl Hydrogen Dithiophosphate, Zinc Salt adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. Each lot is analyzed against key chemical and physical parameters. Certificates of Analysis (COA) documenting purity, zinc content, and other critical 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 away from heat and incompatible materials. This product is easily oxidized (store under inert atmosphere). Recommended storage temperature is 15-25°C. Keep container tightly sealed when not in use to minimize moisture absorption and oxidation.

Specification

Item	Specification
Appearance	Clear to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (Zinc Content)	≥ 10.5 %
Phosphorus Content	≥ 9.8 %
Sulfur Content	≥ 20.5 %
Specific Gravity (20°C)	1.10 - 1.20
Kinematic Viscosity (40°C)	Reported on COA
Acidity (as H3PO4)	≤ 0.5 %

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