
Nonyl Phenol 9 (NP-9)
NP-9 is a nonionic surfactant used for emulsifying, wetting, and cleaning in industrial applications.
- Industrial Cleaning
- Textiles
- Agrochemicals


TDA-9 (Tridecyl Alcohol Ethoxylate 9 EO) is a nonionic surfactant produced by the ethoxylation of tridecyl alcohol, typically supplied as a clear to slightly hazy liquid with excellent water dispersibility. It offers outstanding wetting, emulsifying, detergency, and degreasing properties, making it highly effective in cleaning and formulation applications. Commonly used in industrial and institutional cleaners, textile processing, and agrochemical formulations, it helps improve soil removal and ingredient dispersion. Valued for its versatility, low-foaming characteristics, and formulation compatibility, TDA-9 delivers reliable performance across a wide range of industrial applications.
| Property | Specification |
|---|---|
| Product Name | TDA-9 (Tridecyl Alcohol Ethoxylate 9 EO) |
| CAS No | 24938-91-8 |
| Chemical Name/Synonyms | Trideceth-9; Tridecyl Alcohol 9EO; Isotridecanol Ethoxylate 9 |
| Chemical Formula | C₁₃H₂₇(OC₂H₄)₉OH |
| Appearance (Color) | Clear to pale yellow liquid |
| Molecular Weight | ~600 g/mol (avg) |
| HS Code | 3402.42 |
| TSCA Inventory | Active |
Reduces surface tension to lift soils, oils, and particulate matter effectively.
Provides rapid wetting of substrates, ensuring uniform coverage of solutions.
Stabilizes oil-in-water emulsions, critical for formulated cleaning products.
Generates rich, stable foam enhancing the sensory profile of personal care items.
Highly compatible with builders, polymers, and other surfactant classes.
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