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Nonylphenol Ethoxylate

CAS Number:9016‑45‑9 (P‑nonylphenol ethoxylate); other variants include 127087‑87‑0 (NP-10)

Synonyms:Nonoxynol‑n; NP‑9, NP‑10; polyethylene glycol nonylphenyl ether

General Formula:C₁₅H₂₄O(CH₂CH₂O)_nH (n = 4–50 typical range)

Product Introduction

NPEs are nonionic surfactants composed of nonylphenol cores ethoxylated with multiple EO units. They are clear, low-viscosity liquids widely used in cleaning, emulsification, and wetting applications—but degrade into parent nonylphenols, posing environmental hazards.

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Properties

Property	Value
Appearance	Clear, slightly viscous liquid
pH (5% aqueous)	~5–8
Viscosity	~350–450 mPa·s @ 20 °C
Water Solubility	~25 mg/mL (varies)
Molecular Weight	~308 g/mol for NP‑9; varies by EO units

Applications

Emulsifiers, detergents, wetting/dispersing agents, degreasers for textiles, leather, agrochemicals, paints, metalworking, and home/industrial cleansers
Used in lab reagents (e.g., NP‑40 buffer), pesticide adjuvants, and oil & gas functional fluids