RP7408 has excellent anti rust performance
Release time:
2023-09-13
1. Product Introduction
- Ash-free anti-rust agent, suitable for various anti-rust occasions that cannot contain metal elements;
- Good anti-rust and anti-emulsification performance;
- Multi-purpose, can be used in traditional industrial oil, can also be used in metal processing fluid;
- It can completely replace anti-rust additives such as ternary acid, decanedioicacid and 1,10-decanedicarboxylic acid;
- The addition amount is low, only 0.3-0.5% can be added to achieve a good anti-rust effect.
- Recommended for industrial oil, forming oil, cutting oil, metal processing fluid products.
RP7408 Basic Data
Project |
RP7408 |
Detection method |
Appearance |
Amber clear liquid |
Visual inspection |
Density (20 ℃,g/cm3) |
0.969 |
ISO3675 |
Acid number (mg KOH/g) |
151.2 |
ASTM D664 |
Kinematic viscosity at 40 ℃ (mm2/s) |
1055.0 |
ASTM D445 |
Solubility in water |
Water insoluble |
- |
Solubility in oil (0.5% at 150N) |
100% soluble |
- |
2. Performance test
1. Liquid phase corrosion test
Test concentration: 0.5%RP7408 dissolved in No. 46 base oil
Test environment: Pour 300ml of the liquid to be tested into a beaker and add 30ml of synthetic seawater (refer to ASTM D665 for the configuration method). Stir at 60 ℃ for 24 hours at a speed of 1200r/min to observe the corrosion of steel rods.
Project |
RP7408 |
Blank sample |
Photo |
Conclusion: The samples with the addition of RP7408 were completely free of corrosion.
2. Copper corrosion test
Test concentration: 0.2 RP7408 dissolved in 46 base oil, and 0.2 40% sulfurized olefin added
Test environment: 100 ℃,3 hours
Project |
RP7408 |
Blank sample |
Corrosion grade |
1b |
3a |
Photo |
Conclusion: RP7408 has good copper corrosion inhibition function.
3. Anti-rust performance in metal working fluid
Test formula
Name of raw material |
Programme 1 |
Programme 2 |
Programme 3 |
Programme 4 |
Water |
49.7% |
49.7% |
49.7% |
49.7% |
Triethanolamine |
2.0% |
2.0% |
2.0% |
2.0% |
Monoethanolamine |
5.0% |
5.0% |
5.0% |
5.0% |
AM101 |
5.0% |
5.0% |
5.0% |
5.0% |
Boric acid |
5.0% |
5.0% |
5.0% |
5.0% |
No. 10 white oil |
15.0% |
15.0% |
15.0% |
15.0% |
Tall oil |
7.5% |
7.5% |
7.5% |
7.5% |
C4022 |
3.0% |
3.0% |
3.0% |
3.0% |
460 |
3.0% |
3.0% |
3.0% |
3.0% |
EM07 |
4.5% |
4.5% |
4.5% |
4.5% |
RP7408 |
0.3% |
- |
- |
- |
Sebacic acid |
- |
0.3% |
- |
- |
Dodecanedioic acid |
- |
- |
0.3% |
- |
Here we will compare the anti-rust performance of Shanghai Yucheng Chemical RP7408 and traditional anti-rust agent according to the above reference formula, and the above formula modulation is a transparent uniform liquid.
Test method: Add 5g of cast iron powder into 100ml of 5% diluent (Shanghai residents' tap water, 200ppm calcium and magnesium hard water, 500ppm calcium and magnesium hard water, 800ppm calcium and magnesium hard water), soak for 1 minute, take out and place on filter paper for 24 hours to observe antirust performance.
Contrast of Rust Prevention in Tap Water Environment
|
RP7408 |
Sebacic acid |
Dodecanedioic acid |
Blank sample |
5%PH |
9.54 |
9.52 |
9.51 |
9.55 |
Photo |
Anti-rust comparison under 200ppm environment
|
RP7408 |
Sebacic acid |
Dodecanedioic acid |
Blank sample |
5%PH |
9.54 |
9.52 |
9.51 |
9.55 |
Photo |
Anti-rust comparison under 500ppm environment
|
RP7408 |
Sebacic acid |
Dodecanedioic acid |
Blank sample |
5%PH |
9.54 |
9.52 |
9.51 |
9.55 |
Photo |
Anti-rust comparison under 800ppm environment
|
RP7408 |
Sebacic acid |
Dodecanedioic acid |
Blank sample |
5%PH |
9.54 |
9.52 |
9.51 |
9.55 |
Photo |
Conclusion: RP7408 has excellent rust resistance
Product summary:
- RP7408 has excellent anti-corrosion performance in pure oil products, and has a good protective effect on copper alloy and ferrous metal;
- RP7408 also has excellent anti-rust performance and hard water resistance in metal working fluid, and shows good anti-rust effect in high water hardness environment.
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