Description
NP-10, also known as Nonylphenol Ethoxylate (NPE) with 10 moles of ethylene oxide, is a type of nonionic surfactant.
Chemical Properties
| Property | Description / Value |
| Chemical name | Nonylphenol Ethoxylate (10 EO) |
| Common name | NP-10 |
| Chemical type | Nonionic surfactant |
| CAS number | 127087-87-0 (general NPEs) |
| Molecular formula | C₁₅H₂₄O(C₂H₄O)₁₀ (approximate) |
| Average molecular weight | ~660 g/mol |
| Ethoxylation degree | ~10 moles of ethylene oxide |
| Ionic nature | Nonionic |
| HLB value | ~13–14 |
| Appearance | Pale yellow to clear viscous liquid |
| Odor | Mild, characteristic |
| Solubility in water | Soluble |
| Solubility in organic solvents | Soluble in alcohols, ketones, aromatic and chlorinated solvents |
| Cloud point (1% aq. solution) | ~55–60 °C |
| pH (1% aq. solution) | 6.0–7.5 |
| Density (20 °C) | ~1.05 g/mL |
| Viscosity (25 °C) | ~200–300 cP |
| Flash point | >230 °C (closed cup) |
| Chemical stability | Stable under normal storage conditions |
| Reactivity | Non-reactive; incompatible with strong oxidizing agents |
| Primary function | Emulsifier, detergent, wetting agent, dispersant |
Uses
Cleaners and Detergents: It’s a key ingredient in household and industrial cleaners, degreasers, and pre-wash spotters.
Paints and Coatings: Used as a pigment dispersant and flow enhancer to improve the stability, application, and finish of paints and coatings.
Paper and Textile Processing: Used in washing, wetting, and finishing of various fibers.
Agrochemicals: Serves as a stabilizer and emulsifier in the production of herbicides and pesticides.
Metalworking Fluids: Helps in the dispersion of ingredients and acts as an anti-corrosion agent.
Oil Field Chemicals: Used in drilling fluids and for crude oil washing.
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