Description

Bis(Dodecylphenyl) Hydrogen Dithiophosphate is an organophosphorus compound widely utilized as a high-performance additive. This product serves as a critical component in formulations requiring extreme pressure (EP) and anti-wear properties, as well as antioxidant functionality. It is primarily needed by manufacturers in the lubricant, metalworking fluid, and industrial additive sectors for enhancing product durability and performance under severe operating conditions.

Application

• Primary extreme pressure (EP) additive and anti-wear agent in industrial lubricants and gear oils.
• Key component in metalworking fluids and cutting oils to reduce tool wear and improve surface finish.
• Used as a multifunctional additive in hydraulic fluids and compressor oils.
• Acts as an antioxidant and corrosion inhibitor in various lubricant formulations.
• Employed in the synthesis of other specialty phosphorus-containing chemicals.
• Potential use as a flotation agent or stabilizer in other industrial processes.

Basic Information

Product Name	Bis(Dodecylphenyl) Hydrogen Dithiophosphate
CAS No.	30304-41-7
Molecular Formula	C36H59O2PS2
Molecular Weight	618.96 g/mol
Synonyms	Dodecylphenol Dithiophosphate; DDP; DDPD; Dodecylphenyl Acid Phosphate; Dithiophosphoric Acid O,O-Bis(4-dodecylphenyl) Ester; Bis(4-dodecylphenyl) Hydrogen Dithiophosphate; Phosphorodithioic Acid, O,O-Bis(4-dodecylphenyl) Ester; Irgalube® 349 (trade name)
EINECS	250-135-1

Quality Control

Our Bis(Dodecylphenyl) Hydrogen Dithiophosphate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure consistent purity, performance, and chemical identity. Certificates of Analysis (COA) documenting key specifications are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases and oxidizing agents. Recommended storage temperature is between 15°C and 25°C. Keep container tightly sealed when not in use to minimize exposure to moisture.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Color	Light yellow to amber
Identification (IR)	Conforms to structure
Assay (Titration)	≥ 95.0%
Acid Value	Contact for details
Density (20°C)	~1.00 - 1.05 g/mL
Viscosity (40°C)	Contact for details
Phosphorus Content	~5.0%
Sulfur Content	~10.4%

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