VANPLAST 202 (CAS No. 61790-48-5), also known as barium petroleum sulfonate, is a reddish-brown to brown semi-solid or viscous liquid. It is a popular oil-soluble rust inhibitor, mostly formulated into anti-rust oils and greases. It protects metals from rust by creating a protective surface layer. It shows good solubility in mineral oils and organic solvents, with poor solubility in water.
VANPLAST 202 Chemical Properties
| English Name | VANPLAST 202 |
| English Synonyms | sulfonicacids,petroleum,bariumsalts;VANPLAST 202;VANPLAST PL;VANPLAST R;Sulfonic acids,petroleum, b arium salts T701;BARIUM PETROLEUM SULFONATE;Oil-soluble petroleum sulfonate, barium salt;Sulfonic acids, petroleum, barium salts, overbased |
| CAS Number | 61790-48-5 |
| Molecular Weight | 0 |
| EINECS Number | 263-140-3 |
| Boiling point | 1683.39℃[at 101 325 Pa] |
| vapor pressure | 0Pa at 25℃ |
| Water Solubility | 1.714ng/L at 25℃ |
| LogP | 41.08 at 25℃ |
| EPA Substance Registry System | Sulfonic acids, petroleum, barium salts (61790-48-5) |
Primary Applications
Rust & corrosion inhibitor: For rust-preventive oils, greases, anti-corrosion coatings and metalworking fluids to protect metals.
Lubricant additive: Detergent, emulsifier and dispersant for engine oils and industrial lubricants.
Polymer additive: Plasticizer and anti-corrosion agent for halogenated polymers.
