CAS 9016-45-9|Nonionic Surfactant

Nonylphenol Ethoxylates (NP-4 to NP-15)

Full NP series of nonionic surfactants — HLB 8.9 to 15.0 — for industrial cleaners, agricultural emulsifiers, metalworking fluids, and coatings stabilization.

HLB Range

8.9 – 15.0

Grades Available

NP-4, 6, 9, 10, 12, 15

Surfactant Type

Nonionic

Packaging

Drum / Tote / Bulk

NP Series — Grade Comparison

GradeEO Units (n)HLBCloud PointPrimary Use
NP-448.9<0 °CWetting agent in agricultural formulations and emulsifiable concentrates.
NP-6610.9~0 °CEmulsifier in metalworking fluids and industrial cleaners.
NP-9913.0~54 °CGeneral-purpose emulsifier and detergent in industrial cleaners and textile processing.
NP-101013.3~63 °CEmulsifier in paints, coatings, and latex stabilization.
NP-121214.1~82 °CDispersant and emulsifier in agricultural and industrial applications.
NP-151515.0>100 °CHigh-HLB emulsifier for oil-in-water emulsions and latex stabilization.
Nonylphenol Ethoxylate (NPE)C₉H₁₉O(CH₂CH₂O)nHn = 4, 6, 9, 10, 12, 15HLB range: 8.9 – 15.0CAS 9016-45-9 | Nonionic Surfactant

Selecting the Right NP Grade

Low HLB (NP-4, NP-6) — HLB 8.9–10.9

Water-in-oil emulsifiers, wetting agents in organic media, agricultural EC formulations.

Mid HLB (NP-9, NP-10) — HLB 13.0–13.3

General-purpose oil-in-water emulsifiers, industrial cleaners, metalworking fluids.

High HLB (NP-12, NP-15) — HLB 14.1–15.0

Latex stabilizers, dispersants, solubilizers for high-polarity systems.

Industrial Applications

Industrial Cleaners

NP-6 and NP-9 are effective emulsifiers and detergents in alkaline cleaners, degreasers, and hard-surface cleaning formulations.

Agricultural Formulations

NP-4 and NP-6 used as wetting agents and emulsifiers in emulsifiable concentrate (EC) pesticide formulations.

Metalworking Fluids

Emulsifiers in soluble cutting oils and metalworking fluid concentrates. Improve oil-water emulsion stability.

Paints & Coatings

NP-10 and NP-12 stabilize latex emulsions and pigment dispersions in waterborne coatings.

Textile Processing

Wetting agents, scouring agents, and emulsifiers in textile dyeing, finishing, and fiber processing.

Oilfield Chemicals

Demulsifiers and emulsifiers in crude oil processing, drilling fluids, and enhanced oil recovery formulations.

Safety & Regulatory

Physical StateLiquid (NP-4 to NP-9) / Paste-solid (NP-12, NP-15)
NFPA Health1 — Slight hazard
NFPA Flammability1 — Slight hazard
NFPA Reactivity0 — Stable
Flash Point>100 °C (>212 °F) — Combustible
DOT Hazard ClassNot regulated
Aquatic ToxicityHarmful to aquatic organisms — do not discharge to waterways
Regulatory StatusRestricted in EU (REACH); check local regulations

SDS available for each grade upon request. Verify regulatory status for your jurisdiction — NPEs are restricted in the EU under REACH.

Request a Quote for NP Series Surfactants

Full NP-4 through NP-15 range in drums, totes, and bulk tanker delivery across Texas and the Gulf Coast.

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Nonylphenol Ethoxylates vs. Alternatives

Nonylphenol ethoxylates (NPEs) are nonionic surfactants with strong wetting and emulsification performance. Here's how they compare to alternative nonionic surfactants.

AttributeNonylphenol EthoxylatesAlcohol Ethoxylates (AE)Fatty Acid Ethoxylates
Chemical ClassAlkylphenol ethoxylate (APE) — nonionicLinear alcohol ethoxylate — nonionicNonionic — ester-based
Wetting PerformanceExcellent — strong wetting at low concentrationsGood — slightly less wetting than NPEModerate
Environmental ProfileRestricted in some regions — endocrine concernPreferred alternative — readily biodegradableGood biodegradability
Temperature StabilityExcellent — stable at high tempsGoodModerate — hydrolysis risk at high pH/temp
Primary UseIndustrial cleaning, ag, textiles, oilfieldHousehold and industrial detergentsPersonal care, food emulsification

Industries We Supply Nonylphenol Ethoxylates To

Industrial & Institutional Cleaning

NPEs provide outstanding wetting, emulsification, and soil removal in industrial degreasers, hard surface cleaners, and institutional cleaning products.

Nonylphenol Ethoxylates supply in Houston, TX

Agriculture & Crop Protection

Used as adjuvants and spreader-stickers in herbicide, fungicide, and insecticide formulations to improve coverage, penetration, and efficacy on plant surfaces.

Nonylphenol Ethoxylates supply in Lubbock, TX

Oilfield & Petroleum

NPEs are used as emulsifiers, wetting agents, and demulsifiers in drilling fluids, completion fluids, and crude oil processing operations.

Nonylphenol Ethoxylates supply in Midland, TX

Textile Processing

Used as scouring agents, wetting agents, and emulsifiers in textile wet processing — desizing, scouring, dyeing, and finishing of cotton and synthetic fabrics.

Nonylphenol Ethoxylates supply in Dallas, TX