Barium Petroleum Sulfonate CAS 61790-48-5
61790-48-5 (T701) Barium Petroleum Sulfonate is an oil-soluble and long-lasting rust inhibitor, and it is one of the most commonly used metal rust inhibitors in industry.
Anti-rust principle
The sulfonate barium groups in the molecule strongly adsorb onto the surfaces of metals such as steel, copper, and aluminum, forming a dense hydrophobic protective film.
It has the ability to replace water films and sweat on the metal surface, inhibiting electrochemical corrosion.
Resistant to moisture, salt fog, and salt water, with excellent long-term sealing anti-rust performance.
| Item | Specifications |
| Average MW ≥ | 1000 |
| Volatile%≤ | 5 |
| Chloride% | None |
| Sulfuric acid% | None |
| Moisture% ≤ | 0.15 |
| Mechanical impurities%≤ | 0.1 |
| pH | 7 |
Anti-rust oil / Sealing oil: Long-term anti-rust treatment for military equipment, machinery, bearings, and measuring tools.
Inter-process anti-rust oil: Short-term anti-rust treatment during processing, transportation, and storage.
Two-purpose lubricant and anti-rust oil: Anti-rust additives in gear oil, hydraulic oil, and lubricating grease.
Metal processing fluid: Enhances anti-rust properties in cutting oil and stamping oil.
Anti-rust paste: Thick film anti-rust, outdoor equipment protection.
• Standard Packing: 25 kg/bag; 25 kg/drum
• MOQ: to be confirmed by grade and destination
• Lead Time: to be confirmed by order quantity and production schedule
• Shipping: sea / air / express options available
• Store in a cool, dry, and well-ventilated place.
• Keep container tightly closed and protected from moisture.
• Avoid direct sunlight, heat, and open flame.
• Follow SDS guidance for incompatible materials.










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