Question

In which industries and processes is the rapid penetrating agent, Fast T-50H, mainly used?

Answer
2026-06-06 官方文档 快速渗透剂,快T-50H

Rapid penetrating agent Fast T-50H is widely used in four major fields: textile printing and dyeing, pesticide formulations, leather processing, and industrial cleaning. With its extremely low surface tension and excellent penetration rate, it plays a key role in various process steps.

Detailed Description

Rapid penetrating agent Fast T-50H (sodium dioctyl sulfosuccinate, CAS No.: 577-11-7) is an anionic surfactant. Due to its outstanding rapid penetration, excellent wetting ability, and efficient emulsifying capacity, it has become an indispensable auxiliary agent in multiple industries. Its core advantage lies in its ability to significantly reduce the solid-liquid interfacial tension, allowing the treatment liquid to quickly penetrate into various fibers, porous substrates, and tiny gaps, thereby greatly improving process efficiency and product quality.

This product is suitable for neutral and mild acid-base environments, but its stability decreases under strong acid or strong base conditions. Therefore, attention should be paid to the matching of acid-base conditions during formulation design and process selection. Additionally, Fast T-50H has moderate foaming properties, which can be utilized or controlled by defoaming methods according to practical application needs.

Application Fields

1. Textile Printing and Dyeing: Used as an efficient penetrating agent in pretreatment (scouring, bleaching), dyeing, and printing processes, it promotes the uniform diffusion of dyes and auxiliaries along fibers, significantly improving dye uptake, level dyeing properties, and color fullness, while reducing dyeing defects.

2. Pesticide Formulations: As a wetting and penetrating synergist, it enhances the adhesion, spreading, and penetration of the spray liquid on plant leaves and target surfaces, effectively reducing liquid loss and improving pesticide utilization and control efficacy.

3. Leather Processing: Applied in wet processes such as soaking, degreasing, and tanning, it accelerates the penetration of water and chemicals into the interior of leather fibers, shortens processing time, and improves leather softness and quality uniformity.

4. Daily Chemical and Industrial Cleaning: As a component of penetration and detergency in cleaning formulations, it quickly penetrates the interface between dirt and substrate, dislodging stubborn stains, promoting stripping and dispersion, and significantly enhancing cleaning efficiency.

Technical Parameters

ParameterData
Chemical NameSodium di(2-ethylhexyl) sulfosuccinate (DOSS)
CAS No.577-11-7
Product TypeAnionic surfactant
AppearanceColorless to light yellow viscous liquid
Acid-Base StabilityNot resistant to strong acids or bases; suitable for neutral and mild acid-base conditions
Flash Point>100 °C (closed cup)
Acute Oral Toxicity (Rat LD₅₀)>2000 mg/kg
Fish Ecotoxicity (96h LC₅₀)Approximately 10–100 mg/L

Application Recommendations

  • Textile Printing and Dyeing: It is recommended to add at 0.1%–0.5% in the pretreatment bath or dye liquor, adjusting the dosage according to fiber type and process requirements.
  • Pesticide Formulations: Used as a tank-mix adjuvant or in formulation, the recommended dosage is 0.05%–0.3% of the total spray liquid, which can significantly improve wetting and spreading properties.
  • Leather Processing: Added at 0.2%–0.5% (on leather weight) in soaking and degreasing processes to effectively accelerate penetration of treatment liquids.
  • Cleaning Formulations: Recommended at 1%–5% in the formulation; better results are achieved when compounded with anionic and nonionic surfactants.

Precautions

  • This product is irritating to skin and eyes (GHS classification: Skin irritation Category 2, Eye irritation Category 2). Chemical protective gloves and goggles must be worn during operation.
  • It is toxic to aquatic organisms (H402). Do not discharge the product or its solution directly into water bodies; waste liquid must be disposed of in accordance with local regulations.
  • Store in a cool, dry, well-ventilated warehouse; keep containers sealed and avoid mixing with incompatible materials such as strong oxidizers and strong acids.
  • Avoid use in strong acid or strong base systems to maintain optimal product performance.