T321 Sulfurized Isobutylene Excellent Antiwear Properties 40.0-60.0% Sulfur Content For Optimal Lubrication
T321 Sulfurized Isobutylene (Standard Process)
Product Overview
T321 is an advanced sulfur-based additive synthesized through catalytic reactions of sulfur monochloride, isobutylene, and sodium sulfide, followed by reactinons such as addition, sulfurization, and dechlorination. As a key extreme pressure (EP) and antiwear agent, it is widely used in gear oils and industrial lubricants. The product is an orange-amber transparent liquid with superior performance characteristics.
Key Features
- High sulfur content – Delivers outstanding extreme pressure and antiwear protection.
- Light color & excellent solubility – Easily blends with mineral and synthetic base oils.
- Synergistic compatibility – Works effectively with phosphorus- and nitrogen-based antiwear additives.
Applications & Recommended Dosage
T321 is a versatile additive for formulating high-performance lubricants, including:
- Gear oils
- Metalworking fluids
- Lubricating greases
- Antiwear hydraulic oils
Recommended dosage: 1.5~5.0%
Technical Parameter
|
Item |
Quality Index |
Test Method |
|
Appearance |
Orange-amber colored transparent liquid |
Visual Inspection |
|
Density(20℃), kg/m3 |
1100~1200 |
GB/T1884 |
|
Kinematic Viscosity(100℃), mm2/s |
5.5~8.0 |
GB/T265 |
|
Flash Point(Open Cup), ℃ |
≥100 |
GB/T3536 |
|
Oil Solubility |
Transparent without precipitation |
Visual Inspection (1) |
|
Moisture, v/v % |
≤Vestige |
GB/T260 |
|
Mechanical Impurity, m/m % |
≤0.05 |
GB/T511 |
|
Sulfur Content, m/m % |
40.0~46.0 |
SH/T0303 |
|
Chlorine Content, m/m % |
≤0.5 |
SH/T0161 |
|
Copper Corrosion(121℃*3h), Grade |
≤4a |
GB/T5096 (2) |
|
Four-ball Machine Experiment, PD/N |
≥4900 |
GB/T3142 (2) |
Note:
1) 5% / (m/m %) T321+95% / (m/m %) Base oi [60% / (m/m) HVI 150BS+40% / (m/m %) HVI 500SN]
After being stirred evenly at room temperature(20℃), it should be transparent and free of precipitation when observed visually.
2) 5% / (m/m %) T321+95% / (m/m %) Base oi [60% / (m/m %) HVI 150BS+40% / (m/m %) HVI 500SN]
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