Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Chemical Name
- Fluids & Lubricants Functions
- CAS No.
- 66455-14-9
- EC No.
- 500-165-3
- Technologies
- Chemical Formula
CH3(CH2)n-O(CH2CH2O)yH
where n = 10-11; y = average moles of ethoxylation
Features & Benefits
- Fluids & Lubricants Features
- Product Benefits
- 100% active
- Standard emulsifier chemistries
- Hard water tolerant
- Metal cleaning components, low foaming and coupling agent capabilities
Functional Characteristics.
STEPAN® MWA Products Product Class Sub-Class Functional Characteristics Emulsification Lubricity Antifoaming Metal Cleaning Hard Water Tolerance Antimisting Corrosion Inhibition Coupling Agent Biocidal Inert 200 Series Alkoxylates Castor Oil X X Alcohol X X X X X X Nonyl Phenol X X X EO/PO Polymers X X
Applications & Uses
- Markets
- Fluids & Lubricants Type
- Fluids & Lubricants End Use
- Applications
- STEPAN MWA-237 is a high active nonionic surfactant that is stable in both aqueous acidic and alkaline solutions, allowing for application in a wide range of products. The alcohol ethoxylates containing between one and five moles of ethoxylation are primarily useful in oil-based systems.
- STEPAN MWA-237 can be used as an emulsifier and lubricant in synthetic and semi-synthetic metalworking fluids. STEPAN MWA-237 can be used as a component of lubricants, gear and chain oils, metalworking fluids, hydraulic fluids, and plasticizers. It is soluble in naphthenic and paraffinic oils.
Properties
- Appearance
- Hazy liquid to paste (at 25°C)
- Soluble in
- Naphthenic , Paraffinic oils
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Actives Content | 99.5 | % | — |
| Cloud Point (in 1% aqueous solution) | 43 | °C | — |
| Color | max. 50 | — | Apha Scale |
| Density | 0.96 | g/ml | — |
| Flash Point | min. 94 | °C | PMCC Flash Point Tester |
| HLB | 11.9 | — | — |
| pH (in 1% aqueous) | 6.5 | — | — |
| Pour Point | 19 | °C | — |
| Refractive Index (at 25°C) | 1.4566 | — | — |
| Regulated Volatile Organic Chemicals | 0 | % | U.S. EPA |
| Surface Tension | 27.8 | mN/m | — |
| Viscosity (at 237°C) | 4.38 | cPs | — |
| Viscosity (at 40°C) | 20.2 | — | ASTM D-445-01 |
| Viscosity Index | 138.4 | — | ASTM D-2270-93 |
Regulatory & Compliance
- Certifications & Compliance
- Chemical Inventories
- Clearances
The international inventories (country clearances) of STEPAN MWA-237 can be found in Section 15 of the Safety Data Sheet (SDS). It is the responsibility of the formulator to review the chemical control regulations for each country where the end-product is intended to be sold or used.
Safety & Health
- Health Effects
STEPAN MWA-237 is slightly toxic orally (LD₅₀ ≥1040mg/kg). Undiluted the STEPAN MWA-233 is a severe skin and eye irritant while a 1% dilution generally causes slight to mild skin irritation. See SDS for more information.
Packaging & Availability
- Packaging Type
- Standard Packaging
STEPAN MWA-237 are available in drums.
Storage & Handling
- Storage & Handling
- It is recommended that STEPAN MWA-237 be stored in sealed containers kept in a well-ventilated area away from sparks, fire, and open flame. Avoid overheating or freezing. Equipment should be grounded when transferring or using material. Normal safety precautions (e.g., gloves and safety goggles) should be employed when handing STEPAN MWA-237. Contact with eyes, nose or prolonged contact with skin should be avoided. Wash thoroughly after handling STEPAN MWA-237. See SDS for more information.
- While diluting the STEPAN MWA-237, as with all alcohol ethoxylates, they are prone to gelling. If the product is diluted into water, heating may be required to minimize or eliminate gel formation.
- Workplace Exposure
Occupational exposure can occur primarily through skin contact or via inhalation of vapors and mists. Engineering controls, personal protective equipment, and other workplace practices should be used to control these exposures.