ZDDP SD9425
SD9425 is Zinc Butyl Octyl Primary Alkyl Dithiophosphate (ZDDP). This product features favorable anti-oxidation and anti-corrosion performance and anti-wear and extreme pressure properties. It can effectively protect engine bearings from corrosion, and prevent oil viscosity growth due to oxidation in a high temperature. The product is light in color and nice in oil solubility and additive compatibility. It can be widely adopted in various industrial lubricating oils such as gear oil and hydraulic oil. Combined with detergents and dispersants, the product can be used to produce all grades of engine oils. The percentage in usage is 0.5%-3.0% when adding this product into oil.
l Technical Specifications
Table 1 SD9425 product quality indicators and test methods
|
Item |
Quality indicator |
Test method | |
|
Class-A quality |
Acceptable quality | ||
|
Appearance |
Amber transparent liquid |
Visual test | |
|
Color number, number no more than |
2.0 |
2.5 |
GB/T 6540 or ASTM D -1500 |
|
Density ( |
1080-1130 |
GB/T2540 or ASTM D-4052 | |
|
Kinematic viscosity ( |
Report |
GB/T265 or ASTM D-445 | |
|
Flash point (open), ℃, no less than |
180 |
GB/T3536 or ASTM D-92 | |
|
Sulphur content, % (m/m) |
14.0-18.0 |
12.0-18.0 |
ASTM D-4951 |
|
Phosphorus content, % (m/m) |
7.2-8.5 |
6.0-8.5 | |
|
Zinc content, % (m/m) |
8.5-10.0 |
8.0-10.0 | |
|
PH value, no less than |
5.5 |
5.0 |
SH/T 0394-1996, Annex A |
|
Moisture, % (m/m), no more than |
0.03 |
0.09 |
GB/T260 or ASTM D-95 |
|
Mechanical admixture, % (m/m), no more than |
0.07 |
GB/T 511 or AM-S90-009 | |
l Package, Storage and Shipment
1. The product is packed with iron barrels, with a net weight of
2. For short-term storage and transportation, the temperature of the product shall not surpass
3. This product is non-flammable, non-explosive, and non-corrosive, thus needs no special protection. In case of accidental contact with skin, wash it off thoroughly with water and detergents.
