Quick T-70B, also known as Rapid Penetrant T or Wetting Agent OT, has the chemical active substance Sodium Dioctyl Sulfosuccinate (CAS No.: 577-11-7). This is a diester-structured sulfosuccinate anionic surfactant with the chemical formula C20H37NaO7S and a molecular weight of 444.56. The product is typically supplied as a colorless to light yellow transparent viscous liquid with an effective active content of not less than 70%.
In the industry, it has many alternative names, including: Sodium Diisooctyl Sulfosuccinate, Dioctyl Sodium Sulfosuccinate, Sodium Diisooctyl Maleate Sulfonate, as well as the internationally common names Aerosol OT, DOSS, and Dioctyl Sodium Sulfosuccinate. These names all refer to the same chemical substance.
As a classic high-efficiency penetrating wetting agent, the diester chain in its molecular structure endows the product with a strong ability to reduce interfacial tension, with a penetration power of ≤5 seconds (standard canvas settling method), a critical micelle concentration of only 0.68 g/L, excellent wetting and spreading effects even at low concentrations, and good emulsifying and dispersing properties.
| Parameter Item | Specification Value |
|---|---|
| Chemical Name | Sodium Dioctyl Sulfosuccinate |
| CAS No. | 577-11-7 |
| Molecular Formula | C20H37NaO7S |
| Molecular Weight | 444.56 |
| Ion Type | Anionic Surfactant |
| Appearance | Colorless to light yellow transparent viscous liquid |
| Effective Active Content | ≥70.0% |
| Penetration Power (Standard Canvas Settling Method) | ≤5 seconds |
| pH Value of 1% Aqueous Solution | 5.0~7.0 |
| Surface Tension (1%) | ≤30 mN/m |
| Critical Micelle Concentration (CMC) | 0.68 g/L |
| Density | 1.05~1.10 g/cm³ |
| HLB Value | 10~13 |
| Water Content | ≤30% |
| Solubility | Easily soluble in water |
| Foaming Characteristics | Low foaming |
| Chemical Stability | Acid-resistant, alkali-resistant, hard water-resistant |
| Packaging Specifications | 50kg / 200kg / 1000kg |
Based on its component of Sodium Dioctyl Sulfosuccinate, Quick T-70B exhibits excellent performance in the following areas:
Due to its resistance to acids, alkalis, and hard water, it can be widely applied in various conventional and harsh working conditions. The recommended dosage should be determined through specific process experiments.
This product is an anionic surfactant; compatibility tests should be conducted when formulating with cationic additives. According to safety data provided by Guoli Chemical, this product is harmful if swallowed (H302), causes skin irritation (H315) and serious eye irritation (H319), and may cause respiratory irritation (H335). Protective gloves, goggles, and protective clothing should be worn during operation, ensure good ventilation, and thoroughly wash skin after work. In case of accidental contact, follow the emergency measures in the product's Safety Data Sheet.