Description
NP 9, also known as nonylphenol ethoxylate (NPE), is a nonionic surfactant with a variety of industrial applications. It is a type of chemical compound that has both a water-loving (hydrophilic) and a water-hating (hydrophobic) component, which allows it to act as a wetting agent, detergent, emulsifier, and dispersant. NP 9, or nonylphenol ethoxylate with an average of 9 moles of ethylene oxide, is a commercially produced chemical. It is a type of nonionic surfactant, and its production and distribution are handled by various chemical companies globally
Chemical Properties
| Property | Value |
|---|---|
| Chemical name | Nonylphenol Ethoxylate |
| CAS number | 127087-87-0 |
| Appearance | Pale yellow to clear, colorless viscous liquid |
| Molecular formula | C₁₅H₂₄O(C₂H₄O)ₓ (x ≈ 9) |
| Molecular weight | Approximately 616–620 g/mol |
| HLB (Hydrophilic–Lipophilic Balance) | 12.9 |
| Cloud point (1% aqueous solution) | 52–56 °C |
| Pour point | −1 °C |
| pH (1% aqueous solution) | 6.0–7.5 |
| Viscosity at 25 °C | 243 cP |
| Density at 20 °C | 1.055 g/mL |
| Flash point (closed cup) | 237–247 °C (459–477 °F) |
| Solubility | Soluble in water, chlorinated solvents, and most polar solvents |
Uses
Detergency and Cleaning: It’s a key ingredient in many industrial and commercial cleaning products, degreasers, and laundry detergents because of its ability to remove dirt, grease, and oil.
Emulsifier: It’s used to create stable mixtures (emulsions) of substances that normally don’t mix, such as oil and water. This is vital in products like paints, coatings, and metalworking fluids.
Wetting Agent: It improves the spreading and penetration of liquids onto surfaces, which is important in textile processing (for better dye absorption) and agrochemicals (to help pesticides spread on plants).
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