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Cas:28777-98-2
Purity:98%min
Molecular formula:C22H38O3
Molecular weight：350.54
EINECS：249-210-6
Synonyms:OctadecenylsuccinicAnhydride(mixtureofisomer); Succinicanhydride,octadecenyl-; 2-[(9E)-9-Octadecenyl]succinicacid; 2,5-Furandione,dihydro-3-(octadecen-1-yl)-; ISOOCTADECENYLSUCCINICANHYDRIDE; dihydro-3-(octadecenyl)furan-2,5-dione; OctadecenylsuccinicAnhydride(ODSA); OctadenylSuccinicAnhydride
What is Octadecenylsuccinic Anhydride？
Octadecenylsuccinic Anhydride (ODSA) is a widely used light industry fine chemical raw material. In the papermaking industry, it is used as a neutral sizing agent to greatly improve the waterproof performance, tensile strength, abrasion resistance, whiteness, opacity of paper and improve the chemical environment of the papermaking process. Usually, the process used is to isomerize alpha olefins and then react with maleic anhydride to produce it.
Specification
| ITEM | STANDARD |
| Appearance | Light yellow to amber Clear liquids |
| Assay % | 98.0 |
| Maleic anhydride content % | ≤0.5 |
| Olefin content % | ≤1 |
| Moisture % | ≤0.1 |
| Chromaticity (Fe-Co) | ≤9 |
| Neutralization value mgKOH/g | 300-330 |
Application
1. Octadecenyl succinic anhydride (ODSA) is a highly reactive sizing agent, mainly used for on-site emulsification sizing in paper mills. It consists of an unsaturated olefin skeleton connected to succinic anhydride, and is usually produced in two steps: first, the unsaturated straight-chain or branched olefins are isomerized by double bond displacement; then, the isomeric olefin mixture reacts with maleic anhydride, and the ASA raw material is obtained through addition reaction and corresponding refining. ASA is liquid at room temperature and has good retention, which is due to its coagulation and flocculation effects, which are achieved through charge regulation and bridging of emulsifiers, stabilizers, promoters and retention aids. In order to enhance the retention of ASA on fibers, quaternary ammonium cationic starch, polyacrylamide (retention aid), methylene dithiocyanate (preservative) and cationic polymers containing polyamines are usually used as supporting agents.
2. In addition, octadecenyl succinic anhydride (ODSA) is also used as a chemical intermediate and plays an important role in chemical production. Its chemical properties are active and it can participate in a variety of chemical reactions to generate other chemicals, which makes it widely used in different industrial fields2.
3. In summary, octadecenyl succinic anhydride is not only used as a sizing agent in the papermaking industry, but also as an important intermediate in the chemical industry, demonstrating its wide application and importance in the chemical industry.
Packing
200kgs/drum or Customized according to customer requirements
Synonyms
OctadecenylsuccinicAnhydride(mixtureofisomer); Succinicanhydride,octadecenyl-; 2-[(9E)-9-Octadecenyl]succinicacid; 2,5-Furandione,dihydro-3-(octadecen-1-yl)-; ISOOCTADECENYLSUCCINICANHYDRIDE
