Products Description
C15-C20 mixed long-chain alkenyl succinic anhydride is a light yellow to amber transparent liquid at room temperature; it contains active five-membered ring acid anhydride functional groups and has extremely strong oil solubility;
Compared with C12 DDSA and C16 HDSA, the carbon chain is longer, forming a dense and firm oil film on the metal surface, with more outstanding long-term rust prevention and corrosion resistance; the viscosity is relatively high, and it tends to thicken at low temperatures; it can undergo an acid anhydride ring-opening reaction.
Products Specification
| Product name | ODSA/2,5-Furandione, dihydro-, mono-C15-20-alkenyl derivs |
| CAS NO | 68784-12-3 |
| ITEM NO | M613 |
| Appearance | Light yellow to amber transparent liquid |
| Purity | ≥95% |
| Neutralization value, mgKOH/g | 295-335 |
| Hexadecene content | ≤1.0% |
| Maleic anhydride content | ≤0.5% |
| Moisture | ≤1.0% |
| Density,g/cm3 | 0.92-0.98 |
| Color (Fe-Co) | ≤10 |
| Package | 100mg/10g/100g etc. |
| Delivery | 2-3days |
| Storage | room temperature |
| MSDS/COA/TDS | Connect us |
Products Application
It is mainly applied in fine chemical industry, used as neutral ASA paper sizing agent, high-end lubricant rust and corrosion inhibitor, epoxy curing agent and intermediate for oilfield additives.
FAQ
Q: Why does ODSA have better long-term anti-rust performance than HDSA?
A: It has longer mixed C15-C20 carbon chain. It can form a thicker and firmer oil protective film on the metal surface for longer anti-rust life.
Q: Could ODSA be used for food contact paper?
A: Yes, it can be used as a sizing agent for food-contact paper and paperboard.
Q: What is the risk if stored with water or humid air?
A: Anhydride will hydrolyze into carboxylic acid, reducing anhydride purity, lowering anti-rust performance, and curing activity.
Q: What is the difference between ODSA and DDSA?
A: ODSA has longer C15-C20 mixed carbon chain, stronger oil film adhesion, better long-term anti-rust effect, and higher viscosity. DDSA (C12) has better cost performance for general lubricant and epoxy system.
Q: Why is ODSA suitable for neutral paper sizing?
A: Its long alkenyl chain gives good hydrophobicity. It reacts quickly on paper fiber under neutral conditions and can achieve excellent water resistance.
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