Quick Penetrant T-70E / Wetting Agent OT

Quick Penetrant T-70E / Wetting Agent OT

Quick Penetrant T-70E (Wetting Agent OT) is a sodium dioctyl sulfosuccinate anionic super penetrant with ultra-rapid wetting even at very low concentrations.

CAS No. 577-11-7
Packaging 50kg plastic drum, 200kg plastic drum, IBC tote
Updated 2026-06-11
Reference Price: 9668.61 ¥/ton
Updated: 2026-06-11

Product Overview

Quick Penetrant T-70E (Wetting Agent OT, Sodium Dioctyl Sulfosuccinate) is an anionic super penetrant with ultra-rapid wetting speed even at very low concentrations. Widely used in textile, papermaking, pesticide and leather industries.

Performance Features

  • Ultra-rapid wetting: Instantaneous wetting at concentrations as low as 0.05%.
  • Powerful penetration: Penetrates dense and hydrophobic substrates effectively.
  • Low dosage effective: Excellent performance at economical use levels.
  • Water soluble: Easy to incorporate into aqueous processing systems.

Application Guidelines

  1. Textile: 0.1-1g/L in pretreatment and dyeing.
  2. Papermaking: 0.05%-0.2% as rewetting agent.
  3. Pesticide: 0.1%-0.5% as adjuvant.
  4. Leather: 0.5%-2% in soaking and wetting agents.

Packaging and Storage

50kg plastic drum, 200kg plastic drum, IBC tote.

Quick Penetrant (DOSS) Applications

  • Textile processing: Ultra-fast wetting in pretreatment and dyeing. Dosage: 0.1-1g/L.
  • Papermaking: Rewetting agent and penetration aid. Dosage: 0.05%-0.2%.
  • Pesticide adjuvant: Spreader and wetting agent. Dosage: 0.1%-0.5%.
  • Leather processing: Soaking and wetting. Dosage: 0.5%-2%.

Product Properties

Property Value
CAS No. 577-11-7
Molecular Formula C20H37NaO7S
Appearance Colorless to pale yellow transparent liquid
Ionic Type Anionic
Avg. Molecular Weight 444.56
Cloud Point N/A (anionic surfactants)
Active Content ≥70
pH Value(1%) 5.0~7.0
pH Value(5%) ~5.0~7.0 (ref.1%soln.)
Solubility Readily soluble in water
Surface Tension ≤30
CMC ~0.1% (25℃)
Acid Value ≤2 mg KOH/g
Saponification Value ~252.5 (pure); 70% soln. ~177
Moisture ≤30
Density 1.05~1.10 g/cm³ (25°C)
Kinematic Viscosity ≤200 mm²/s (25°C)
Refractive Index 1.375~1.385 (25°C)
Flash Point >100°C (aq. soln., non-flammable)
Hygroscopicity Hygroscopic
Chemical Stability Resistant to acids, alkalis and hard water
Penetration ≤5 s (1% aq., canvas disc)
Foam Property Low foam
Alkali Resistance Good; resistant up to 80-100 g/L NaOH
Viscosity Low viscosity liquid
Melting Point N/A (liquid as 70% aq. solution)
Monoester Content ≤1.5%
Diester Content ≥70% (active content)
Low Shear Viscosity ≤200 mPa·s
Solid Content ≥70%
Free Alcohol ≤0.5%
Heavy Metal ≤10 mg/kg
Arsenic ≤2 mg/kg

Safety

GHS

  • Skin Irrit Cat 2 H315 | Eye Irrit Cat 2 H319

Signal: Warning

Handling

Wear protective gloves and goggles. Ensure adequate ventilation. Avoid eye and skin contact. Wash thoroughly after handling. Do not eat, drink or smoke during operation.

Storage

Store in a cool, dry, well-ventilated area. Keep container tightly closed. Keep away from strong oxidizers, strong acids and alkalis.

First Aid

Skin: Remove contaminated clothing. Wash with soap and water for at least 15 minutes. Seek medical attention if irritation persists.

Eyes: Rinse immediately with plenty of water for at least 15 minutes. Seek medical attention.

Inhalation: Move to fresh air. Seek medical attention if symptoms persist.

Ingestion: Rinse mouth. Do NOT induce vomiting. Drink water. Seek medical attention.

Spills: Absorb with inert material (sand, vermiculite). Collect in sealed containers. Dispose according to local regulations.

Fire: Use water fog, foam, dry powder or CO2. Firefighters wear SCBA.

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