Nonylphenol Ethoxylate (NPE) – Chemical Product Description
Nonylphenol Ethoxylate (NPE) is a non-ionic surfactant derived from the ethoxylation of nonylphenol. It is widely used in various industrial and consumer applications due to its excellent wetting, emulsifying, and dispersing properties. NPE is characterized by its ability to lower surface tension, making it effective in formulations that require enhanced spreading and penetration.
Key Features:
- Chemical Structure: Nonylphenol with ethylene oxide units
- Appearance: Typically a yellowish to amber liquid
- Solubility: Soluble in water and organic solvents
- Biodegradability: Moderate to low, depending on the formulation
Common Uses:
- Agriculture: Used as a wetting agent in pesticide formulations to improve the efficacy of active ingredients.
- Textiles: Acts as a surfactant in dyeing and finishing processes.
- Household Products: Found in cleaning agents, detergents, and personal care products.
- Industrial Applications: Utilized in metalworking fluids, paints, and coatings.
Technical Data Table
| Property | Value |
|---|---|
| Chemical Name | Nonylphenol Ethoxylate |
| CAS Number | 9016-45-9 |
| Molecular Weight | Varies with ethylene oxide units |
| Appearance | Yellowish to amber liquid |
| Odor | Mild, characteristic odor |
| pH (1% solution) | 6.0 – 8.0 |
| Density | 1.0 – 1.1 g/cm³ |
| Viscosity | 100 – 500 cP |
| Solubility in Water | Soluble |
| Flash Point | > 100 °C |
| Biodegradability | Moderate to low |
| Toxicity | Low acute toxicity |
Summary
Nonylphenol Ethoxylate is a versatile chemical with a wide range of applications across various industries. Its surfactant properties make it an essential ingredient in formulations that require effective wetting and emulsification. However, it is important to consider its environmental impact and regulatory status, as concerns regarding its biodegradability and potential endocrine-disrupting effects have led to increased scrutiny and restrictions in some regions.