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Poly(oxy-1,2-ethanediyl), alpha-(isononylphenyl)-omega-hydroxy-

Time: 2019-11-19 16:28:41; Count: 1

Poly(oxy-1,2-ethanediyl), alpha-(isononylphenyl)-omega-hydroxy-


Ethoxylated isononylphenol;

Polyethylene glycol isononylphenol ether;

Polyethylene glycol isononylphenyl ether;

Polyethylene glycol mono(isononylphenyl) ether;

PEG isononyl phenyl ether;

PEG nonyl phenyl ether;



Non-ionic surfactant

> Polyether

>> Phenol Polyether

>>> Phenol Polyoxyethylene Ether

>>>> Branched Alkylphenol Polyoxyethylene Ether

Chemical Numbering System

CASRN: 37205-87-1


Molecular Formula & Molecular Weight

Molecular Formula: (C2H4O)n.C15H24O

Molecular Weight: N/A


R: iso-C9.


Appearance    (1), colorless liquid to paste to solid.

Solubility    dispersible in water (slightly soluble in water) to soluble in water. The solubility increases with the increase of EO number.

Stability    stable.

Risk    Solid (or liquid) form: flammable material; irritation, irritation to skin, eye, respiratory system. Harmful products of combustion are CO, CO2 and so on. Contact with strong oxidants, can cause to burn.

GHS (Rev.10) label:  

Animal Toxicity

Table 1 Animal toxicity values

mouse oral LD50


rat oral LD50

> 3000mg/kg[1]

rat oral LD50


rat oral LD50


Ecology    may be hazardous to environment. Water body should be given special attention.

Biodegradability    not easy to degrade.

Characteristics    excellent cleansing, emulsifying, dispersing, solubilizing, wetting, permeating abilities. Performance is related to EO number.

Note    (1), The by-product 1,4-dioxane is a possible carcinogen. Generally, can be acceptable when concentration of 1,4-dioxane is less than 30ppm or less.

(2), Be careful with using in children's products.


Obtained that isononylphenol reacts with ethylene epoxide.

For further information, see:

US patent 4,223,163 Process for making ethoxylated fatty alcohols with narrow polyethoxy chain distribution; US patent 4,967,017 Alcohol ethoxylates of reduced EO content or residual PO content; US patent 5,069,817 Process for making polyoxyethylene surfactants with desirable low temperature behavior; etc.

Quality Standards & Test Methods

1, Physical and chemical indexes


Physical and chemical indexes


Actives, %, ≥


pH (25°C, 1% solution)

5.0 - 7.0

Test Methods

(1), Actives

GB/T 13173 Surface active agents - Detergents - Testing methods

(2), pH

GB/T 6368 Surface active agents -- Determination of pH of aqueous solution -- Potentiometric method

ISO 4316 Surface active agents -- Determination of pH of aqueous solutions -- Potentiometric method

2, Hazardous substances indexes


Hazardous substances indexes


Heavy metals (as Pb), mg/Kg, ≤


As, mg/Kg, ≤


Test Methods

(1), Heavy metals (as Pb)

Safety and Technical Standards for Cosmetics (2015 Edition)

GB/T 30799 The test method of food detergents - Determination of heavy metals

(2), As

Safety and Technical Standards for Cosmetics (2015 Edition)

GB/T 30797 The test method of food detergents - Determination of total arsenic

3, Further explanation

(a), On physical and chemical indexes: firstly, shall be indicated carbon atom distribution; secondly, shall be indicated average molecular weight.

(b), Used in cosmetics, should be test for harmful substances or furtherly test for microorganisms, according to local regulations and standards.

Major Uses

1, Typical applications

Use as cleansing agent. For example, used in personal care products, household cleaning, industrial cleaning, textile, leather, chemical fiber.

Use as emulsifying agent, dispersing agent.

Use as solubilizing agent.

Use as wetting agent, permeating agent.

2, Industrial cleaning

Use as cleansing agent.

3, Textile

Cleansing agent, leveling agent in textile, dye.

4, Personal care products

Emulsifying agent, cleansing agent in personal care products.

Product members

PEG-9 isononyl phenyl ether;

PEG-10 isononyl phenyl ether;

PEG-120 isononyl phenyl ether;




[1]: ChemIDplus. 37205-87-1, Poly(oxy-1,2-ethanediyl), alpha-(isononylphenyl)-omega-hydroxy-


[Terminology] Dispersion system

[Terminology] Vesicle

Pandect of Ester surfactants (1): Definition

[Terminology] Van Der Waals force

[Terminology] Micellar aggregation number


Test methods of surfactants, catalog, Chinese national standards

Surfactants, catalog, Chinese national standards