What is Ethoxylated Oleyl Amine (12EO) CAS 26635-93-8?

It is a tertiary amine ethoxylate prepared from primary oleylamine and an average of about 12 moles of ethylene oxide. This CAS number identifies the oleylamine ethoxylate family and is commonly associated with Ethomeen O/12.

Why is it often compared with Ethomeen O/12?

Ethomeen O/12 is a widely used trade-name oleylamine ethoxylate with the same chemical family and 12EO description. The generic product is functionally equivalent for many emulsifying, dispersing, and corrosion-inhibition applications, but users should still confirm the supplier specification.

Is it nonionic or cationic?

Its behavior depends on pH and formulation conditions. The ethoxylated amine can behave as a nonionic surfactant in neutral or alkaline systems and become more cationic when protonated in acidic systems.

What HLB should formulators expect?

The Ethomeen O/12 reference has an HLB of about 9.9 on the Davies scale. This moderate value supports oil-in-water emulsification, wetting, and dispersing while keeping compatibility with a range of industrial formulation components.

What are the main industrial uses?

It is used as an emulsifier, dispersant, wetting agent, or adjuvant in agrochemical formulations, textile processing, coatings, and industrial cleaners. It can also provide corrosion inhibition, thickening, and antistatic effects in specialty systems.

How should this product be stored and handled?

Keep it in tightly closed containers in a cool, dry, well-ventilated area, away from direct sunlight and moisture. Because viscosity rises at low temperature, mild warming may be needed before pumping or handling.

Ethoxylated Oleyl Amine (12EO) CAS 26635-93-8

Ethoxylated Oleyl Amine (12EO) is supplied as a fatty amine ethoxylate derived from oleyl amine and ethylene oxide, positioned as a surfactant intermediate in a range of industrial formulation systems. It provides wetting, emulsifying, and dispersing functionality, particularly in systems where pH-dependent cationic behavior is beneficial.

In commercial supply, this product is typically delivered as a liquid or semi-liquid material, suitable for use in agrochemical formulations, coatings, textile auxiliaries, and specialty chemical blends. It is available in standard industrial packaging with supporting documentation (COA, TDS, SDS) and can be supplied for both formulation development and bulk production.

CAS: 26635-93-8
Synonyms: Oleylamine Ethoxylate (12EO); Ethoxylated Oleylamine; Oleyl Amine EO 12; equivalent to Ethomeen O/12
Einecs: 500-048-7
Grade: Industrial / formulation use
Package: Available in drums, IBC containers, or bulk supply; packaging arranged according to order volume and transport conditions

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Product Description

1 Physicochemical Properties

2 Typical Applications

3 Packaging

4 Storage

Physicochemical Properties

Item	Description
Appearance	Amber to brown liquid or semi-liquid
Odor	Characteristic amine odor
Solubility	Dispersible to soluble in water depending on pH and system
pH (1% solution)	Typically alkaline
Density	Approx. 0.90 – 1.00 g/cm³
Viscosity	Moderate to high, temperature dependent
Cloud Point	Varies with ethoxylation level and formulation conditions
Ionic Character	Nonionic to cationic depending on pH

Typical Applications

Agrochemical formulations as emulsifier, dispersant, or adjuvant
Textile processing as wetting agent and softening auxiliary
Coatings and inks as dispersing and compatibility agent
Industrial cleaning and specialty chemical formulations

Specific end uses should be evaluated based on formulation compatibility and local regulatory requirements.

Packaging

Ethoxylated Oleyl Amine (12EO) is supplied as a liquid or semi-liquid material and packed in sealed containers suitable for surfactant handling and transport. Typical packaging formats include plastic or steel drums and intermediate bulk containers (IBC) for larger volumes. For bulk supply, tanker delivery may be arranged depending on logistics conditions. Containers are selected to minimize contamination and maintain product consistency throughout storage and shipment.

Storage

Store in a cool, dry, and well-ventilated environment. Keep containers tightly closed when not in use to prevent moisture absorption and contamination. Due to temperature-dependent viscosity, the product may require mild heating for handling under low-temperature conditions. Avoid prolonged exposure to direct sunlight and air to maintain stability.

For related ethoxylated surfactant pages, review Ethoxylated Lauryl Amine, Fatty Alcohol Polyoxyethylene Ether, and Octylphenol Ethoxylate.

FAQ - Technical & Supply Chain

Q:
What is Ethoxylated Oleyl Amine (12EO) CAS 26635-93-8?

A: It is a tertiary amine ethoxylate prepared from primary oleylamine and an average of about 12 moles of ethylene oxide. This CAS number identifies the oleylamine ethoxylate family and is commonly associated with Ethomeen O/12.
Q:
Why is it often compared with Ethomeen O/12?

A: Ethomeen O/12 is a widely used trade-name oleylamine ethoxylate with the same chemical family and 12EO description. The generic product is functionally equivalent for many emulsifying, dispersing, and corrosion-inhibition applications, but users should still confirm the supplier specification.
Q:
Is it nonionic or cationic?

A: Its behavior depends on pH and formulation conditions. The ethoxylated amine can behave as a nonionic surfactant in neutral or alkaline systems and become more cationic when protonated in acidic systems.
Q:
What HLB should formulators expect?

A: The Ethomeen O/12 reference has an HLB of about 9.9 on the Davies scale. This moderate value supports oil-in-water emulsification, wetting, and dispersing while keeping compatibility with a range of industrial formulation components.
Q:
What are the main industrial uses?

A: It is used as an emulsifier, dispersant, wetting agent, or adjuvant in agrochemical formulations, textile processing, coatings, and industrial cleaners. It can also provide corrosion inhibition, thickening, and antistatic effects in specialty systems.
Q:
How should this product be stored and handled?

A: Keep it in tightly closed containers in a cool, dry, well-ventilated area, away from direct sunlight and moisture. Because viscosity rises at low temperature, mild warming may be needed before pumping or handling.

Ordering & Documentation

Key information for document requests, quotations, and supply planning.

Documents

COA, TDS, SDS/MSDS and packing details are available on request.

Quotation

Send the CAS number, grade, quantity, packing preference and destination.

Sample & Supply

Support is available for samples, trial orders, bulk and repeat supply.

Storage & Shipping

Product-specific conditions are confirmed before order.

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