Fatty Alcohol Polyoxyethylene Ether CAS 68131-39-5 | AEO-3 AEO-7 AEO-9

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Port: Shanghai Port, Qingdao Port

Name: Fatty Alcohol Polyoxyethylene Ether

Cas: 68131-39-5

Purity: 99%

MOQ: 1KG

Directory Guidance on Fatty Alcohol Polyoxyethylene Ether

Basic Info

Fatty Alcohol Polyoxyethylene Ether (CAS Registry Number: 68131-39-5), commercially recognized as Alcohols, C12-14, ethoxylated or the AEO series (such as AEO-3, AEO-7, and AEO-9), is a versatile non-ionic surfactant synthesized through the catalytic ethoxylation of natural linear lauryl-myristyl fatty alcohols. By adjusting the molar ratio of ethylene oxide (EO) units attached to the hydrophobic C12-14 alkyl chain, formulators can precisely tune the Hydrophilic-Lipophilic Balance (HLB), wetting speed, and emulsifying power of the molecule.

Produced at Shandong Zhishang Chem Co., Ltd. under controlled continuous ethoxylation reactors, our CAS 68131-39-5 series delivers rapid interfacial tension reduction, exceptional hard-water tolerance, and stable performance across wide pH ranges (pH 2 to 12). Unlike anionic surfactants, it remains unaffected by multivalent metal ions and blends seamlessly with anionic, cationic, and amphoteric co-surfactants in both concentrated liquid detergents and industrial processing baths.

Key Grade Specifications (Typical Values by EO Mole Ratio):

CAS Number: 68131-39-5 (EINECS: 500-213-3 / INCI: Laureth-3, Laureth-7, Laureth-9)
Chemical Structure: R-O-(CH2CH2O)n-H (where R = C12-C14 linear alkyl chain)
Appearance at 25 Degrees C: Colorless to pale yellow transparent liquid (AEO-3, AEO-7) or white soft paste (AEO-9)
Active Matter Content: 99.0% minimum
Hydroxyl Value: 165 – 180 mg KOH/g (AEO-3) | 110 – 120 mg KOH/g (AEO-7) | 92 – 102 mg KOH/g (AEO-9)
Cloud Point (1% Aqueous Solution): 50 – 58 Degrees C (AEO-7) | 72 – 82 Degrees C (AEO-9)
HLB Value: ~8.0 (AEO-3) | ~12.2 (AEO-7) | ~13.3 (AEO-9)
pH Value (1% Aqueous Solution): 5.5 – 7.5
Moisture Content: 0.5% maximum
Color (APHA / Hazen): 30 maximum

Product Packaging

Fatty Alcohol Polyoxyethylene Ether Application

Depending on the degree of ethoxylation selected, Fatty Alcohol Polyoxyethylene Ether addresses specific technical challenges across multiple industries:

Household & Institutional Cleaning: AEO-7 and AEO-9 serve as primary workhorse surfactants in heavy-duty laundry liquids, concentrated pods, dishwashing formulations, and hard-surface degreasers, rapidly lifting oily soils and particulate grime even in cold-water wash cycles.

Textile & Leather Auxiliaries: Functions as a low-foaming wetting agent, scouring detergent, and dyeing leveling auxiliary for cotton, wool, and synthetic fibers, promoting uniform dye penetration without fiber damage.

Chemical & Personal Care Intermediate: Low-EO grades (such as AEO-3) act as oil-soluble W/O emulsifiers and serve as the core feedstock for sulfation into Sodium Laureth Sulfate (SLES).

Pulp, Paper & Agrochemical Formulations: Operates as a de-inking dispersing agent in paper recycling and as a wetting/spreading adjuvant in agricultural emulsifiable concentrates (EC) and suspension concentrates (SC).

FAQ

Q1: How do I choose between AEO-3, AEO-7, and AEO-9 under CAS 68131-39-5?

A1: Selection depends on your target HLB and water solubility. AEO-3 (HLB ~8) is oil-soluble and mainly used as a W/O emulsifier or raw material for SLES manufacturing. AEO-7 (HLB ~12.2) and AEO-9 (HLB ~13.3) are fully water-soluble and widely favored for liquid laundry detergents, industrial degreasers, and textile scouring agents due to their superior wetting and grease-cutting efficiency.

Q2: What happens if AEO-9 solidifies or becomes cloudy during winter transit?

A2: Higher ethoxylate grades like AEO-9 have a pour point around 20 to 25 Degrees C and naturally solidify into a soft white paste in cooler climates. This is a reversible physical phase change that does not affect chemical activity. Gently warming the drum to 40-50 Degrees C with mild agitation restores a clear, homogeneous liquid prior to batch dosing.

Q3: Can Fatty Alcohol Polyoxyethylene Ether be blended with anionic surfactants like LABSA or SLES?

A3: Yes. Because CAS 68131-39-5 carries no electrical charge, it exhibits strong synergistic performance when paired with anionic surfactants (such as LABSA or SLES), boosting overall detergency, lowering critical micelle concentration (CMC), and stabilizing foam profiles in hard water.

Q4: What packaging and shipping documentation does Shandong Zhishang Chem provide?

A4: Standard export packaging includes 200 kg galvanized steel or HDPE plastic drums, 50 kg plastic drums, and 1,000 kg IBC totes (with heating-coil IBC options available upon request). Every shipment is accompanied by a batch-specific COA, GHS-compliant Safety Data Sheet (SDS), Packing List, Commercial Invoice, and Certificate of Origin.

Related References

Pubchem-Fatty Alcohol Polyoxyethylene Ether

Chemicalbook-Fatty Alcohol Polyoxyethylene Ether

Regulatory Compliance & Quality Certifications

International chemical buyers require verifiable supply chain transparency. Shandong Zhishang Chem supports global distribution of Fatty Alcohol Polyoxyethylene Ether with complete regulatory alignment:

ISO 9001:2015 Certified Production: Full batch traceability covering plant-derived fatty alcohol procurement, catalyst dosing, vacuum stripping, and drum filling.

ISO 14001 Environmental Management: Closed-loop ethoxylation technology minimizing volatile emissions and process waste.

EU REACH Compliance Support: Complete substance registration dossiers and technical safety documentation available for European Union importers and formulators.

Biodegradability Alignment: Readily biodegradable linear alkyl ethoxylate structure meeting international detergent environmental criteria (such as OECD 301 series guidelines).

In-House Laboratory Testing & Batch Self-Inspection

To prevent odor drift, discoloration, or performance inconsistency in downstream customer formulations, every batch of CAS 68131-39-5 undergoes rigorous internal analytical screening before a Certificate of Analysis (COA) is issued:

Headspace Gas Chromatography (GC-FID): Quantifies trace volatile by-products, verifying that residual free Ethylene Oxide stays below 1 ppm and 1,4-Dioxane remains strictly below 10 ppm.

Automated Hydroxyl Value & Cloud Point Determination: Confirms the exact degree of ethoxylation and HLB accuracy so formulators achieve predictable viscosity response when salt-thickening liquid detergents.

Karl Fischer Coulometric Titration: Verifies low moisture content (under 0.5%), critical for anhydrous solvent-based degreasers and emulsion concentrates.

APHA Colorimetry & Sensory Check: Ensures water-white clarity and neutral base odor, preventing interference with delicate fragrance notes in household cleaning products.

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