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Zinc Dioctyl Primary Alkyl Dithiophosphate (Primary ZDDP)
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Zinc Dioctyl Primary Alkyl Dithiophosphate (ZDDP) Factory
Primary ZDDP Supplier
Description：
Direct factory supply of Zinc Dioctyl Primary Alkyl Dithiophosphate (Primary ZDDP). A multifunctional anti-wear and antioxidant additive for industrial and engine oils. CAS 4259-15-8. Full TDS/MSDS/COA documentation available for B2B partners.
Category：
Antiwear (AW) Additives&ZDDP
Product Details
Zinc Dioctyl Primary Alkyl Dithiophosphate (Primary ZDDP)
The Cornerstone of Wear Protection and Oxidative Stability
CAS NO: 4259-15-8 | Chemical Category: Zinc Dialkyl Dithiophosphate (ZDDP)
In the world of high-performance lubrication, few components are as indispensable as Zinc Dioctyl Primary Alkyl Dithiophosphate. Recognized globally as a premier ZDDP variant, this multifunctional additive provides the essential "triple-threat" protection required by modern machinery: Anti-wear (AW), Antioxidant (AO), and Corrosion Inhibition.
At Chemost, we provide a high-purity Primary ZDDP characterized by superior thermal stability, making it the ideal choice for industrial applications where long-term oil life and metal surface integrity are non-negotiable.
【Strategic Advantage: Why Primary ZDDP?】
While various forms of ZDDP exist, our Dioctyl Primary Alkyl structure offers distinct advantages for specific B2B formulations:
Enhanced Thermal Stability: Compared to secondary ZDDPs, our primary octyl-based structure resists decomposition at higher temperatures, ensuring the oil maintains its protective qualities throughout extended service intervals.
Hydrolytic Resistance: Excellent performance in environments where moisture contamination is a risk, preventing the premature formation of acidic byproducts.
Multifunctional Efficiency: Acts as a sacrificial anti-wear agent by forming a robust polyphosphate film on metal surfaces while simultaneously neutralizing peroxide radicals to prevent oil thickening.
【Blending & Technical Specifications】
For manufacturers and blenders, consistency is the key to a stable final product. Our ZDDP is refined to meet the following tight tolerances:
Performance Metric | Typical Value | Unit | Test Method |
|---|---|---|---|
Appearance | Light Yellow Transparent Liquid | - | Visual |
Zinc Content | 8.0 – 10.0 | wt% | ASTM D4951 |
Phosphorus Content | 7.0 – 8.5 | wt% | ASTM D4951 |
Sulfur Content | 14.0 – 16.5 | wt% | ASTM D4951 |
Density (20°C) | 1.08 – 1.13 | g/cm^3 | ASTM D1298 |
Flash Point (COC) | ＞ 180 | °C | ASTM D92 |
Water Content | ＜0.05 | % | ASTM D6304 |
【Application Systems & Formulation Guidance】
Our Zinc Dioctyl Primary Alkyl Dithiophosphate is engineered for versatility across several high-volume lubricant categories:
Anti-Wear Hydraulic Oils: The primary choice for ISO VG 32, 46, and 68 hydraulic fluids to protect high-pressure pumps.
Industrial Gear Lubricants: Provides the necessary load-carrying capacity to prevent scuffing in heavy-duty gearboxes.
Marine & Stationary Diesel Engines: Offers the thermal stability required for large-bore engines operating under consistent thermal loads.
Grease Manufacturing: Often incorporated into lithium and complex greases to boost EP/AW properties.
Recommended Dosage:
- For Industrial Oils: 0.5% – 1.5%
- For Engine Oils: 0.8% – 2.0%
【Synergy & Compatibility Profile】
Successful lubrication is about the "Additive Symphony." Our ZDDP is tested for high compatibility with:
- Calcium Sulfonates & Phenates: Works effectively with detergents to maintain engine cleanliness without destabilizing the anti-wear film.
- Ashless Dispersants: Maintains performance in the presence of high-molecular-weight dispersants.
- Base Oil Range: Highly soluble in API Group I, II, and III base stocks, as well as PAO synthetic fluids.
【B2B Compliance & Document Suite】
We understand that for our B2B clients, the product is only half of the equation. Compliance and documentation are the other half. Chemost provides a complete digital and physical "Document Shield" for every batch:
- TDS (Technical Data Sheet): Comprehensive physical properties and application ranges.
- MSDS (Material Safety Data Sheet): Full GHS-compliant safety, handling, and environmental data.
- COA (Certificate of Analysis): Batch-specific lab results ensuring the product meets your exact procurement specifications.
【FAQ】
Q: How does this primary ZDDP differ from secondary ZDDP?
A: Primary ZDDP (like our Dioctyl version) has higher thermal stability but slightly slower film-forming kinetics compared to secondary ZDDP. This makes it superior for high-temperature industrial applications and hydraulic systems, whereas secondary ZDDP is often preferred for passenger car engines requiring rapid cold-start protection.
Q: What is the shelf life of the product?
A: When stored in original sealed containers in a dry, cool environment (below 45°C), the shelf life is typically 24 months.
Q: Can this be used in ashless oil formulations?
A: No. Since this product contains Zinc, it is a metal-containing additive. For "Ashless" requirements, we recommend our phosphorus-sulfur or amine-based alternatives.
Why Choose Us
We believe that as long as we provide high-quality services to our customers, CheMost Additives CO., LTD's products will always gain the trust and support of our customers and have a stable market.
Our factory
We have over 20 professional chemical reactor,the annual production capacity of the products can reach 20,000 tons, while ensuring quality, we can provide stable and continuous supply.
Our warehouse
We are well aware that for the stable supply of chemical products, storage is the foundation. In the face of the ever-changing global market environment, a sustainable storage capacity is of vital importance.
Our laboratory
Long-term cooperation cannot be achieved without stable product quality. Under the supervision of over 20 pieces of testing equipment and 70 tests, the quality of the products is qualified and stable.
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