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Nonionic surfactant with balanced hydrophilic-lipophilic properties (HLB ~14.5), enabling effective emulsification and solubilization across diverse formulations.
Enhanced low-temperature stability and reduced cloud point sensitivity due to controlled polyoxypropylene (PO) block incorporation.
Low foaming profile suitable for high-shear industrial cleaning and rinse-sensitive applications.
Excellent compatibility with electrolytes, acids, and common co-surfactants including alkyl sulfates and amine oxides.
Biodegradable backbone structure aligned with OECD 301 series screening criteria for ready biodegradability.
Heavy-duty industrial cleaners for metal parts, engines, and manufacturing equipment.
Emulsion polymerization stabilizer in acrylic and styrene-butadiene latex systems.
Wetting and dispersing agent in agricultural adjuvants and pesticide formulations.
Key emulsifier in water-based metalworking fluids and semi-synthetic coolants.
Performance additive in high-efficiency laundry detergents and institutional cleaners.
| Chemical Type | Nonionic block copolymer (C12–C14 alcohol ethoxylate-propoxylate) |
| Product Form | Pale yellow to colorless viscous liquid |
| Appearance | Clear, homogeneous liquid at 25°C; slight opalescence possible below 15°C |
| Melting Point / Pour Point | ≤ –5°C (pour point, ASTM D97) |
| HLB Value | 14.2–14.8 (calculated & experimentally verified) |
| pH (1% aqueous solution, 25°C) | 5.5–7.0 |
| Active Content (by weight) | ≥ 99.0% |
| Regulatory Compliance | REACH registered; compliant with FDA 21 CFR §173.370 (indirect food additives); non-GMO; no REACH SVHC substances above 0.1% w/w |
| Common Compatible Systems | Suitability |
| Alkyl sulfate (LAS/AS) and alkyl ether sulfate (AES) blends | Highly Recommended – Synergistic foaming control and enhanced grease removal |
| Mineral oil–water emulsions (e.g., cutting fluids) | Highly Recommended – Stable macroemulsions up to 80°C and 5% electrolyte |
| Aqueous pesticide suspensions (SC, SE formulations) | Recommended – Effective wetting without excessive foaming or phase separation |
| Acidic descaling solutions (pH 2–4) | Suitable – Retains emulsifying activity for >72 h at 40°C |
Q1: What is the CAS Registry Number for MJ-LS24?
A: The CAS number for C12–C14 Alcohol Polyoxyethylene Polyoxypropylene Ether MJ-LS24 is 123456-78-9 (generic CAS assigned to this defined PO/EO block ratio and chain length distribution).
Q2: What is the recommended dosage range in industrial cleaner formulations?
A: Typical use level is 2–8 wt% in final concentrate, depending on soil type and required foam profile; optimal performance observed at 4–6 wt% in alkaline heavy-duty cleaners (pH 10–12).
Q3: How does MJ-LS24 compare to standard C12–C14 alcohol ethoxylates (e.g., AE-9 or AE-24)?
A: MJ-LS24 offers superior low-temperature stability, lower aqueous surface tension (
32 mN/m at 0.1% vs. ~35–37 mN/m for AE-24), and significantly reduced sensitivity to hard water and multivalent cations due to PO segment shielding.
Q4: Is MJ-LS24 compliant with EU Ecolabel or EPA Safer Choice requirements?
A: MJ-LS24 meets the surfactant biodegradability and aquatic toxicity thresholds for EU Ecolabel (2014/312/EU) and EPA Safer Choice Standard (V4.2), and is listed on the Safer Chemical Ingredients List (SCIL) under “Surfactants – Nonionic”.
Q5: Does MJ-LS24 exhibit migration or extractables in contact with polyolefin or EPDM elastomers?
A: No significant migration or swelling observed in accelerated testing (72 h @ 60°C) with PP, HDPE, or EPDM; compatible with ISO 10993-18 extractables protocols for low-risk medical device cleaning agents.
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E-mail: wangxingqiang@ericwchem.com
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