ATDM is a trusted supplier of Sodium Petroleum Sulfonate, known for quality and reliability. This powerful surfactant cleans, protects, and stabilizes oil-based systems. It helps lubricants, greases, and metal fluids perform better and last longer. Many industries use it because it removes dirt, stops rust, and keeps machines clean and safe.
What Is Sodium Petroleum Sulfonate?
Sodium Petroleum Sulfonate is an oil-based detergent. It is made by reacting petroleum oil with sulfuric acid and then neutralizing it with sodium hydroxide. The result is a brown, thick liquid that mixes well with oil but not with water.
This product has a dual nature. One side attracts oil, and the other attracts water. Because of this, it works as a bridge between them. It keeps oil and water mixed evenly and prevents separation.
It is safe, stable, and easy to use. Most often, it appears as a brown, sticky liquid with a mild oil smell.
Main Uses and Applications
Sodium Petroleum Sulfonate plays a big role in many industries. Below are its most common uses:
1. Lubricating Oils
In motor and machine oils, it acts as a detergent. It keeps the inside of engines clean by removing dirt and sludge. It also stops carbon deposits from building up.
2. Metalworking Fluids
In metal cutting or grinding fluids, it works as an emulsifier and rust inhibitor. It makes the oil and water mix better. This keeps tools cool and protects metal surfaces from corrosion.
3. Rust Preventive Oils
When applied to metal parts, it forms a protective film that blocks air and moisture. This prevents rust even during long storage or transport.
4. Grease Manufacturing
It helps grease stick better to metal surfaces. Because of this, grease made with Sodium Petroleum Sulfonate resists water and heat, giving longer protection.
5. Industrial Cleaners
It is used in oil-field chemicals, engine degreasers, and industrial cleaning products. It removes oil stains and metal dirt easily.
Technical Data
| Property | Typical Value |
|---|---|
| Appearance | Brown viscous liquid |
| Active Matter | 40–60% |
| Moisture | ≤ 1% |
| pH (1% solution) | 7–9 |
| Solubility | Soluble in oil, not in water |
| Density at 25°C | 0.95 – 1.05 g/cm³ |
| Flash Point | Above 150°C |
| Shelf Life | 2 years (sealed container) |
These values show why ATDM’s Sodium Petroleum Sulfonate is stable, long-lasting, and easy to blend with other oil additives.
Key Benefits
Strong rust protection – keeps metals safe from air and moisture.
Excellent cleaning – removes dirt and sludge from engine oils.
Good emulsifying ability – mixes oil and water evenly.
Thermal stability – works well even under high heat.
Wide compatibility – blends easily with other additives.
Longer machine life – reduces wear and friction.
Because of these features, it is one of the most trusted surfactants in oil-based formulations.
How It Works
This product lowers the surface tension between oil and water. It keeps small oil droplets evenly spread in a mixture, so the blend stays stable. The sodium sulfonate part attaches to metal surfaces, forming a thin, strong layer. This film stops air and moisture from reaching the surface, preventing rust and corrosion.
As a result, lubricants and greases last longer, and machines run smoothly with less friction and heat.
Packaging and Storage
ATDM offers Sodium Petroleum Sulfonate in safe and durable packages:
200 kg steel drums
1000 kg IBC tanks
Bulk delivery in ISO tanks
Storage Tips
Store in a cool, dry place away from sunlight.
Keep containers tightly sealed.
Avoid mixing with water or other chemicals.
Use clean tools when handling.
If stored correctly, it stays effective for up to 24 months.
Safety and Handling
Sodium Petroleum Sulfonate is not dangerous when handled properly. However, always follow safety steps:
Avoid contact with eyes and skin.
Wear gloves and goggles during use.
In case of contact, wash with plenty of water.
Do not eat or drink while handling chemicals.
For detailed safety data, ATDM provides MSDS upon request.
Why Choose ATDM as Your Supplier
ATDM is an experienced manufacturer and supplier of Sodium Petroleum Sulfonate. We supply to many countries and industries, offering consistent quality and fast delivery. Our production follows international standards to ensure performance, safety, and purity.
We support our customers with technical advice, custom packaging, and after-sales service. ATDM’s commitment is to provide you with the right product for your process — every time.
Conclusion
If you are searching for a reliable supplier of Sodium Petroleum Sulfonate, choose ATDM. We deliver high-quality grades suitable for lubricants, greases, rust inhibitors, and metalworking fluids. Our product is tested for purity, stability, and performance.
With ATDM, you get a trusted partner that ensures both quality and consistency — helping your business grow with dependable chemical solutions.
No. It dissolves in oil but not in water. That’s why it is perfect for oil-based lubricants and greases.
It depends on the formula. Sodium sulfonate has better cleaning and dispersing ability, while calcium sulfonate is often used as a thickener.
Most formulas use 0.5% to 3% depending on the purpose — either for cleaning, dispersing, or rust protection.