Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Chemical Name
- Fluids & Lubricants Functions
- CAS No.
- 68131-39-5
- EC No.
- 500-195-7
- Technologies
- Chemical Formula
CH3(CH2)n-O(CH2CH2O)yH
Features & Benefits
- Fluids & Lubricants Features
- Biodegradability
STEPAN MWA-257 is readily biodegradable.
- 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-257 is a highly active nonionic surfactant. It is stable in both acidic and alkaline solutions and can be used as an emulsifier and lubricant in synthetic and semi-synthetic metalworking fluids. STEPAN MWA-257 can be used as a component of lubricants, gear and chain oils, metalworking fluids, hydraulic fluids, and plasticizers, and is soluble in naphthenic and paraffinic oils.
Properties
- Physical Form
- Appearance
- Clear to slightly hazy liquid (at 25°C)
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Actives Content | min. 99.5 | % | — |
| Average Number of Moles (Ethylene oxide) | 7.25 | — | — |
| Color | max. 50 | — | Apha Scale |
| Density | 0.96 | g/ml | — |
| Flash Point | min. 94 | °C | PMCC Flash Point Tester |
| HLB | 12.2 | — | — |
| Pour Point | 19 | °C | — |
| Regulated Volatile Organic Chemicals | 0 | % | U.S. EPA |
| Viscosity (at 25°C) | 29 | cPs | — |
Regulatory & Compliance
- Certifications & Compliance
- Chemical Inventories
- Clearances
The international inventories (country clearances) of STEPAN MWA-257 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-257 is slightly toxic orally (LD₅₀ ≥1800mg/kg). Undiluted the STEPAN MWA-257 Series products are severe skin and eye irritants while a 1% dilution generally causes slight to mild skin irritation. See SDS for more information.
Packaging & Availability
- Packaging Type
- Standard Packaging
STEPAN MWA-257 is available in drums.
Storage & Handling
- Storage & Handling
Normal safety precautions (i.e., gloves and safety goggles) should be employed when handling STEPAN MWA-257. Contact with eyes, nose or prolonged contact with skin should be avoided. Wash thoroughly after handling STEPAN MWA-257. See SDS for more information.
- 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.