EP/AW Additives

Dioleyl hydrogen phosphite PSAIL 3018

CAS No.64051-29-2

PSAIL 3018 is a multifunctional dialkyl phosphite additive with an oleyl alcohol-based structure that combines antioxidant, antiwear, and stabilizing properties. The distinctive oleyl chain in its molecular structure provides excellent oil solubility and processing characteristics, while the phosphorus content delivers effective extreme pressure and antiwear protection.

Product name:  PSAIL 3018

Similar products:  DOVERPHOS 253, JP-218-OR

Chemical name: Dioleyl hydrogen phosphite

Appearance:  Light-yellow transparent liquid

Flash point open cup (℃):  >150

Acid number (mgKOH/g):  2.7

Phosphorus content (%):  5.3


Description

What is Dioleyl hydrogen phosphite PSAIL 3018?

Dioleyl hydrogen phosphite PSAIL 3018 is a high-performance, ashless dialkyl phosphite additive derived from oleyl alcohol, offering a unique combination of antioxidant, antiwear, and stabilizing properties. Its molecular structure features long oleyl chains that ensure excellent oil solubility and superior processing characteristics, while the active phosphorus content provides robust extreme pressure (EP) and antiwear protection. As a phenol-free additive, PSAIL 3018 complies with stringent environmental regulations, making it suitable for eco-friendly lubricant and polymer formulations. It is widely used in industrial oils, metalworking fluids, greases, and polymer materials such as polyolefins, PVC, and unsaturated polyesters, where it enhances thermal stability and mechanical performance.

Features of Dioleyl hydrogen phosphite PSAIL 3018:

Dioleyl hydrogen phosphite PSAIL 3018 stands out due to its advanced chemical properties and multifunctional benefits:

Environmentally Compliant – Free from phenolic compounds, meeting global environmental standards (e.g., REACH) for sustainable industrial applications.

Superior Oil Solubility – The oleyl alcohol-based structure ensures excellent compatibility with various base oils and organic matrices.

High Thermal Stability – Maintains effectiveness under extreme temperatures, making it ideal for high-load and high-speed applications.

Ashless Composition – Prevents deposit formation, ensuring cleaner operation in lubricating systems.

Effective EP/Antiwear Performance – The phosphorus content provides strong film-forming properties, reducing friction and wear in demanding conditions.

Polymer Stabilization – Enhances the processing and long-term stability of polyolefins, PVC, and unsaturated polyesters.

Functions of Dioleyl hydrogen phosphite PSAIL 3018:

PSAIL 3018 delivers multiple performance-enhancing functions across different applications:

Antioxidant Protection – Inhibits oxidative degradation in lubricants, extending service life and preventing sludge formation.

Extreme Pressure (EP) Performance – Protects metal surfaces under heavy loads, preventing scuffing and seizure in gear oils and industrial lubricants.

Antiwear and Friction Reduction – Forms a durable protective layer on metal parts, minimizing wear in engines, hydraulic systems, and machinery.

Corrosion and Rust Inhibition – Enhances the protective properties of greases and metalworking fluids.

Polymer Stabilizer – Acts as a processing aid and heat stabilizer in plastics, improving resistance to thermal degradation during manufacturing and end-use.

Synergistic Compatibility – Works effectively with other additives, to optimize lubricant performance.

Applications of Dioleyl hydrogen phosphite PSAIL 3018:

PSAIL 3018 is a versatile additive with broad industrial applications, including:

Industrial Lubricants – Gear oils, hydraulic fluids, compressor oils, and turbine oils benefit from its oxidation stability and antiwear properties.

Metalworking Fluids – Enhances cutting, grinding, and forming fluids by providing superior lubrication and EP protection.

Greases – Used in lithium, calcium, and complex soap greases to improve load-carrying capacity and corrosion resistance.

Polymer Industry – Stabilizes polyolefins (PE, PP), PVC, and unsaturated polyesters during processing and long-term use.

Environmentally Friendly Formulations – Ideal for lubricants and polymers requiring compliance with REACH and other eco-regulations.

Price of Dioleyl hydrogen phosphite PSAIL 3018:

The current price of Dioleyl hydrogen phosphite PSAIL 3018 may vary depending on numerous factors, including the supplier, quantity, and specific formulation requirements.   For accurate and up-to-date pricing information, it is advisable to contact UNPChemicals directly.

Supplier of Dioleyl hydrogen phosphite PSAIL 3018:

If you are looking for Dioleyl hydrogen phosphite PSAIL 3018 or want to know more about the technical information, please feel free to contact UNPChemicals.

Techspecs

Chemical property of Dioleyl hydrogen phosphite PSAIL 3018:

Description

PSAIL 3018 is a multifunctional dialkyl phosphite additive with an oleyl alcohol-based structure that combines antioxidant, antiwear, and stabilizing properties. The distinctive oleyl chain in its molecular structure provides excellent oil solubility and processing characteristics, while the phosphorus content delivers effective extreme pressure and antiwear protection. This phenol-free additive meets environmental compliance standards and finds wide application in lubricating oils, metalworking fluids, and polymer materials (including polyolefins, PVC, and unsaturated polyesters).

Chemical name

Dioleyl Hydrogen Phosphite

CAS No.

64051-29-2

Recommended treat level

1.0-10.0 %

Highlights

Environmentally friendly, free of phenolic compounds.High efficiency ashless anti-wear agent, high-temperature and heavy-load extreme pressure agent.

Excellent extreme pressure and lubrication performance.

 

Technical parameters of Dioleyl hydrogen phosphite PSAIL 3018:

Item

Specification

Appearance

Light-yellow transparent liquid

Density (20℃, g/cm3)

0.91

Viscosity at 40℃, mm2/s

22.88

Flash point (open cup, ℃)

>150

Acid number (mgKOH/g)

2.7

Phosphorus content (%)

5.3

 

Packaging

50kg plastic drum or 180kg steel drum (Net weight)

Handling information

Store in a cool, dry and well-ventilated warehouse.

For more information, please refer to the relevant MSDS.

 

Get a Quote

Luoyang Pacific United Petrochemical Co., Ltd.

Location

No. 113, Huayang Avenue, Baihe Town, Mengjin District, Luoyang City, Henan Province, China

Make a Call

+86 16638830202