ZDDP/Zinc Dioctyl Primary Alkyl Dithiophosphate

YB-T203 ZDDP/Zinc Dioctyl Primary Alkyl Dithiophosphate
Lubricant Antioxidant and corrosion inhibitor

ZDDP, also known as Zinc Dioctyl Primary Alkyl Dithiophosphate, is a type of chemical additive used in lubricants. It is commonly used in automotive engine oils to provide anti-wear and anti-oxidation properties.

ZDDP is a combination of zinc and dithiophosphate, which is derived from primary alkyl alcohols. The primary alkyl group in ZDDP refers to the alkyl chain attached to the phosphorus atom in the dithiophosphate molecule.

ZDDP works by forming a protective film on metal surfaces, such as engine parts, to reduce friction and wear. It also acts as an antioxidant, preventing the oxidation of oil and the formation of harmful deposits.

In addition to its anti-wear and anti-oxidation properties, ZDDP also has some anti-corrosion and extreme pressure properties. This makes it particularly effective in high-load and high-temperature applications, such as automotive engines.

However, the use of ZDDP has been reduced in recent years due to its potential negative impact on catalytic converters in modern vehicles. ZDDP can form deposits on the catalyst surface, reducing its effectiveness and causing increased emissions. As a result, lubricant manufacturers have been developing alternative additives to replace or reduce the use of ZDDP in engine oils.

Overall, ZDDP is a widely used and effective additive in lubricants, particularly in older engines or applications that require high load and temperature capabilities. However, its use is being phased out in newer vehicles to comply with emissions regulations.

Characteristics

Application 
◎ Use in Hydraulic Oils 
◎ Use in high-grade Diesel Engine Oils, its recommended dosage is 0.5-3.0%