What is Fast T-70B (Quick Penetrant T / Wetting Agent OT)? What are its main uses?

Fast T-70B (Quick Penetrant T / Wetting Agent OT) is a highly efficient anionic surfactant, chemically known as dioctyl sodium sulfosuccinate (CAS: 577-11-7), characterized by its excellent rapid penetration and wetting properties, widely used in more than ten industrial fields such as textile printing and dyeing, pesticides, coatings, daily chemicals, and industrial cleaning.

Detailed Description

The chemical name of Fast T-70B is dioctyl sodium sulfosuccinate (also known as sodium dioctyl sulfosuccinate, dioctyl sulfosuccinate sodium salt), belonging to the anionic surfactant category. The product appears as a colorless to light yellow transparent viscous liquid, commonly referred to internationally as Aerosol OT or DOSS. The diester and sulfonate groups in its molecular structure endow the product with strong interfacial activity, enabling it to rapidly migrate to solid-liquid and liquid-liquid interfaces in aqueous solutions, significantly reducing interfacial tension.

The most prominent performance characteristics of this product are fast penetration speed and strong wetting ability—it can instantly break the surface barrier between the liquid and the substrate, allowing the treatment liquid to quickly spread and penetrate into fibers, pores, or gaps. At the same time, Fast T-70B also exhibits good emulsifying and dispersing properties, helping to form a stable and uniform mixed system, and maintains excellent stability in acidic, alkaline, and hard water media, making it suitable for a wide range of working conditions.

As one of the core products of Guoli Chemical, Fast T-70B is widely used in various industries from traditional textiles to high-end photosensitive materials, serving as a key functional additive for achieving "rapid wetting and uniform treatment" in industrial formulations.

Technical Parameters

Application Recommendations

Leveraging its two core characteristics of rapid penetration and strong wetting, Fast T-70B has extensive and important applications in the following ten major fields:

• Textile Printing and Dyeing: Quickly reduces the surface tension of dye liquor, helping dyes and auxiliaries instantly wet and penetrate fibers, significantly improving leveling and dyeing rate, and reducing dyeing defects.
• Pesticide Formulations: Acts as an efficient wetting agent in wettable powders, aqueous suspensions, etc., enhancing the spreading and penetration of the spray liquid on plant leaves and target surfaces, thereby improving efficacy.
• Coatings and Inks: Improves the wetting and leveling of water-based coatings and inks on substrates, preventing surface defects such as craters and orange peel, while promoting rapid pigment dispersion.
• Daily Chemicals: Used in detergents, household cleaners, shampoos, etc., to enhance decontamination and penetration power, helping active ingredients penetrate dirt more quickly for better cleaning results.
• Industrial Cleaning: Serves as a powerful penetrant for hard surface cleaning of metals, electronic components, etc., quickly stripping oil and carbon deposits, reducing cleaning time, and improving cleaning efficiency.
• Petroleum Extraction: Used as an effective wetting reversal agent and cleanup additive, reducing oil-water interfacial tension, improving water injection oil displacement efficiency and fracturing fluid flowback rate.
• Paper Industry: Promotes uniform distribution of chemicals in waste paper deinking, internal sizing, and coating processes, improving paper uniformity and surface strength.
• Leather Processing: Accelerates the penetration of water and chemicals during soaking, degreasing, tanning, etc., resulting in more uniform rewetting, softer leather, and finer grain.
• Metal Surface Treatment: Reduces the surface tension of treatment liquids in pickling, phosphating, electroplating, etc., quickly eliminating gas films on metal surfaces, ensuring continuous and dense coatings, and improving adhesion.
• Photosensitive Materials: Promotes rapid and uniform spreading of coatings in emulsion coating for films, photographic paper, etc., eliminating bubbles and streaks, improving imaging clarity and quality.

Recommended Dosage: The specific addition amount varies depending on the application scenario and formulation system. It is generally recommended to be 0.05% to 1.0% of the total formulation. The optimal dosage should be determined through small-scale tests. For technical guidance on specific applications, it is recommended to contact the application engineers at Guoli Chemical.

Precautions

Safety Warning: This product is a hazardous chemical with the following hazards:

• Harmful if swallowed (Acute toxicity oral, Category 4)
• Causes skin irritation (Skin corrosion/irritation, Category 2)
• Causes serious eye irritation (Serious eye damage/eye irritation, Category 2)
• May cause respiratory irritation (Specific target organ toxicity - single exposure, Category 3)

Operational Protection: Protective gloves, protective clothing, eye protection, and face protection must be worn during operation. Avoid inhaling vapors or spray. Use only outdoors or in well-ventilated areas. Do not eat, drink, or smoke while using this product. Wash skin thoroughly after handling.

Storage Conditions: Store in a well-ventilated place. Keep container tightly closed. Store locked up to prevent unauthorized access. Dispose of container and contents in accordance with local regulations.

Emergency Treatment: If swallowed: rinse mouth, do NOT induce vomiting, seek medical advice immediately. In case of skin contact: remove contaminated clothing and rinse skin with plenty of water. In case of eye contact: rinse with water for several minutes, if irritation persists, seek medical advice. If inhaled: move to fresh air; if feeling unwell, seek medical advice.