Antiwear EP Additive Triphenyl Thiophosphate T309 TPPT
T309, Triphenyl Thiophosphate (TPPT), is widely used in lubricants, esters, and other industrial applications. A small quantity of TPPD in the formula may enhance the extreme pressure, anti-wear, anti-oxidation, hydrolysis safety, and anti-emulsification properties.
Description
Introduction
Product Name: Triphenyl Thiophosphate CAS
Number: 597-82-0
Molecular Formula: C 18 H 15 O 3 PS
Molecular Weight: 342
It is obtained by reacting with phenol and phosphorus trichloride through sulfurization, neutralization, washing and crystallization. It is widely used in lubricants, esters, etc. Adding a small amount of this additive can improve its extreme pressure, anti-wear, anti-oxidation, hydrolytic stability, and anti-emulsification.
TPPT = O,O,O-Triphenylphosphorothioate
Due to the environmental and health risks of TPPT, it is not allowed to use this type of lubricant additive in some regions.
Specifications
|
Item |
Quality Index |
Test Method |
|
Appearance |
White or Light Yellow Powder |
Visual |
|
Content |
99% |
SH/T 0296 |
|
Melt Point*, ℃ |
51-54 |
GB/T 617 |
|
Phosphorus, wt%, ≥ |
8.9 |
SH/T 0269 |
|
Surfur, wt%, ≥ |
9.3 |
SH/T 0303 |
|
Copper Corrosion (100℃, 3h) |
≤1 |
GB/T 5096 |
* This is for end melt point. This test sample is 3% T309 dissolved in 500SN base oil.
Recommended Treat Rate (wt%)
● Freon Refrigerant: 0.3
● Oil Film Bearing Oil: 0.8
● Ashless Antiwear Hydraulic Oil: 0.8-1.2
Package, Handle & Storage
● The use temperature should not exceed 100℃.
● Packed in 25kgs/bag or 25, 40kgs/cardboard drum.
● It should be stored in a well-ventilated and dry warehouse.
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