Dioctyl Sodium Sulfosuccinate (DOSS) Spreader-Sticker
CAS Number: 577-11-7
Dioctyl sodium sulfosuccinate (DOSS) is an anionic surfactant widely used as a spreader-sticker adjuvant in agricultural spray formulations. It rapidly reduces surface tension of spray solutions to enhance spreading and adhesion on leaf surfaces, improving coverage and reducing runoff losses. DOSS is compatible with a wide range of pesticide formulation types and is commonly found in WP, WG, and SC formulations as a wetting and dispersing agent.
Technical Specifications
| HLB value | 10–12 |
| appearance | White to off-white powder or light yellow liquid |
| moisture (%) | ≤5 |
| pH (1% solution) | 5–8 |
| active ingredient (%) | ≥70 |
| surface tension (mN/m, 0.1%) | ≤28 |
Applications
- WP and WG formulation wetting and dispersing agent
- SC and SE spreader-sticker adjuvant
- Tank-mix spray adhesion and spreading enhancer
- Emulsion stabilizer in EC and ME formulations
- Surface-active ingredient in seed treatment coatings
Key Features
- Fast-acting surface tension reduction for improved leaf coverage
- Stable across a wide pH range (4–9)
- Compatible with most anionic and non-ionic surfactants
- Available in powder (75%) and liquid (70%) concentrate forms
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CAS Number
577-11-7
Category
Agricultural / Crop ChemicalsAvailability
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