Nonylphenol Ethoxylate NPE9

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Product Description

Nonylphenol Ethoxylate (NPE9) is a non-ionic surfactant belonging to the alkylphenol ethoxylate family, characterized by an average of 9 ethylene oxide units. It is widely used as a detergent, emulsifier, dispersant, and wetting agent in various industrial and commercial applications. NPE9 offers excellent cleaning power, low foaming properties, and good compatibility with other surfactants, making it a versatile ingredient in formulations such as textile processing, paints, coatings, and metal treatment.

 

Description

Uses

Primary Uses 

  1. Industrial Cleaning and Detergents 
    • Acts as a powerful emulsifier and wetting agent in heavy-duty cleaners and degreasers. 
    • Used in metal cleaning and surface preparation to remove oils, greases, and soils. 
  2. Textile Processing 
    • Employed as a detergent and wetting agent in scouring and bleaching operations. 
    • Helps in dye penetration and uniform application of textile chemicals. 
  3. Paints and Coatings 
    • Functions as an emulsifier and dispersant to stabilize pigment dispersions. 
    • Improves flow and leveling in water-based paints and coatings. 
  4. Agricultural Formulations 
    • Used in pesticide formulations as a surfactant to enhance spray coverage and adhesion. 

Secondary Uses 

  1. Oil Recovery and Drilling Fluids 
    • Utilized as a surfactant to improve oil displacement and emulsification in enhanced oil recovery processes. 
  2. Leather Processing 
    • Assists in degreasing and wetting during leather manufacture. 
  3. Paper Industry 
    • Used as a dispersing agent to improve fiber treatment and retention. 
  4. Cosmetics and Personal Care (Limited) 
    • Occasionally found in formulations where strong emulsification is needed, but usage is declining due to environmental concerns. 
KEY PRODUCT FEATURES

Key Attributes

Basic Identification Attributes

  • Chemical Name (IUPAC): Nonylphenol ethoxylate (average EO = 9) 
  • Common/Trade Name: NPE9, Nonylphenol Ethoxylate 9 
  • CAS Number: 127087-87-0 (varies by exact EO chain length) 
  • HS Code: 3402.19.00 (Other non-ionic surface-active agents) 
  • Synonyms: NPE-9, Nonylphenol polyethylene glycol ether 

Physical & Chemical Properties

  • Physical State: Clear to pale yellow liquid 
  • Odor: Mild phenolic odor 
  • pH (1% solution): 6.0 – 8.0 
  • Solubility: Miscible with water and organic solvents 
  • Density: Approx. 1.05 – 1.07 g/cm³ 
  • Cloud Point: Typically 60–70°C (depends on formulation) 

Safety & Hazard Attributes

  • GHS Classification: May cause skin and eye irritation 
  • Toxicity: Moderate; avoid prolonged exposure 
  • Environmental Concerns: Classified as a hazardous pollutant in some regions due to persistence and endocrine disruption potential 

Storage & Handling Attributes

  • Storage Conditions: Store in cool, dry place, away from heat and direct sunlight 
  • Container Type: Supplied in plastic drums or containers 
  • Shelf Life: 12 – 24 months under proper storage 
  • Handling Precautions: Use protective gloves and goggles; avoid inhalation and prolonged skin contact 

 

Regulatory & Compliance Attributes

  • Restricted or banned in some countries due to environmental toxicity and persistence 
  • Subject to regulations such as REACH (EU) and TSCA (USA) with use restrictions or phase-outs 
  • Compliance with industrial chemical standards when used under regulation 

 

Environmental & Health Impact

  • Biodegradability: Slowly biodegradable; breakdown products may be persistent 
  • Ecotoxicity: High toxicity to aquatic organisms; bioaccumulative potential in some breakdown products 
  • Bioaccumulation: Possible concern with degradation products (nonylphenol) 
  • Carcinogenicity/Mutagenicity: Not classified as carcinogenic but considered an endocrine disruptor 

 

SAFETY HANDLING PRECAUTIONS

Safety Handling Precautions

  • PPE Required: Gloves, safety goggles, and protective clothing recommended 
  • Handling Guidelines: Use in well-ventilated areas; avoid release to the environment 
  • Storage Measures: Keep containers tightly closed; prevent spills and leaks 

 

First Aid Measures

  1. Inhalation: Move to fresh air; seek medical attention if breathing difficulty occurs 
  2. Skin Contact: Wash thoroughly with soap and water; seek medical help if irritation persists 
  3. Eye Contact: Rinse immediately with water for 15 minutes; consult a physician if irritation continues 
  4. Ingestion: Rinse mouth; do not induce vomiting; seek medical advice promptly 

 

Firefighting Measures

  • Fire Hazards: Combustible liquid; avoid open flames and sparks 
  • Extinguishing Media: Foam, dry chemical, COâ‚‚, or water spray 
  • Special Precautions: Use self-contained breathing apparatus and protective clothing 
  • Hazardous Combustion Products: Carbon oxides, nitrogen oxides, phenolic compounds