Sulfurized Fatty Acid Ester (CAS No.: 68390-93-2) is a low-odor, active-sulfur extreme pressure (EP) additive. It is suitable for medium- to heavy-duty machining operations and low-viscosity metalworking fluids.
This additive provides excellent control of sulfur release, exhibiting continuous reactivity over a wide temperature range. It features a very low pour point and a high flash point, making it suitable for localized high-temperature machining conditions. It demonstrates good synergistic effects with various additives such as polyesters and anti-wear agents, and is compatible with a wide range of base oils.
Features
-high EP performance
-high activity
-light-colored
-low odored
-high flash point
-low viscosity
Storage and Shelf Life
It is recommended to use this product within one year from the date of purchase. Store in a cool, dark place. If stored for more than one year, product quality and all parameters should be rechecked prior to use.
Technical Specifications and Test Methods
Item | Quality Standard | Test Method | |
Appearance | Brown | Visual inspection | |
Moisture % (v/v) | ≤ 0.03 | GB/T260 | |
Mechanical impurities % | 0.05 | GB/T511 | |
Flash Point (COC) ℃ | ≈ 180 | GB/T3536 | |
Kinematic Viscosity (40 ℃) mm2/s | ≥ 45 | GB/T265 | |
Density (20 ℃) kg/m³ | ≈ 1010 | GB/T13377 | |
Oil solubility | Clear, no sediment | Visual inspection1 | |
Total Sulfur Content % (m/m) | ≥ 17 | GB/T170402 | |
Active Sulfur Content % (m/m) | ≈ 8 | SH/T0194-92 | |
1.A mixture consisting of 5% (m/m) sulfurized GDT321H and 95% (m/m) base oil shall be stirred at ambient temperature (20 °C)until fully homogeneous. The resulting blend shall appear visually clear and free from any visible sediment or phase separation. 2. The sulfur content shall be determined in accordance with GB/T17040; alternatively, other validated analytical methods may be used. | |||
