Fast penetrating agent T-70E and wetting agent OT are actually different trade names for the same chemical substance, and their core active ingredient is sodium di(2-ethylhexyl) sulfosuccinate (Sodium Dioctyl Sulfosuccinate), which is an anionic surfactant. Due to the presence of both hydrophilic sulfonic acid groups and lipophilic diester long-chain alkyl groups in its molecular structure, this ingredient endows the product with extremely low surface tension and excellent penetrating and wetting abilities.
This product has many aliases, including: sodium di(2-ethylhexyl) sulfosuccinate, sodium dioctyl sulfosuccinate, sodium diisooctyl sulfosuccinate, sodium dioctyl sulfosuccinate, docusate sodium, Aerosol OT, AOT-70, etc. It should be specifically noted that the "70" in "T-70E" indicates an active content of about 70%, and the product appears as a colorless to light yellow transparent viscous liquid.
The CAS number of this product is 577-11-7. It has good water solubility and wide compatibility, maintaining stable performance even under hard water conditions. It is a highly effective penetrating and wetting aid widely used in textiles, papermaking, pesticides, leather, and other fields.
| Item | Content |
|---|---|
| Main component | Sodium di(2-ethylhexyl) sulfosuccinate |
| CAS number | 577-11-7 |
| Active content | Approximately 70% (aqueous solution) |
| Ionic type | Anionic surfactant |
| Appearance | Colorless to light yellow transparent viscous liquid |
| Common aliases | Aerosol OT, AOT-70, docusate sodium, sodium dioctyl sulfosuccinate, sodium diisooctyl sulfosuccinate |
As an anionic highly effective penetrating and wetting agent, this product is widely used in textile printing and dyeing (pretreatment desizing, scouring, bleaching, and finishing), leather processing (soaking, degreasing, tanning), paper industry (coating processing, deinking of waste paper), pesticide formulations (emulsifiable concentrates, suspension concentrates, aqueous solutions), emulsion polymerization, coatings and inks, metal cleaning, and petroleum extraction.