Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Chemical Name
- Fluids & Lubricants Functions
- Technologies
- Product Families
- Chemical Structure
R=7-9
Features & Benefits
- Fluids & Lubricants Features
- Biodegradability
Product is biodegradable.
- Product Benefits
- Hydrolytically stable, resistant to breakdown in the presence of water
- Excellent lubricity versus industry standard.
- Hard water tolerance capabilities
- Low foaming capabilities
- Oil soluble.
STEPAN® MWA Products Product Class Sub-Class Functional Characteristics Emulsification Lubricity Antifoaming Metal Cleaning Hard Water Tolerance Antimisting Corrosion Inhibition Coupling Agent Biocidal Inert 500 Series Esters Methyl X X Simple X X X Complex X X Hydrolytically Stable X X X
Applications & Uses
- Markets
- Fluids & Lubricants Type
- Fluids & Lubricants End Use
- Applications
STEPAN MWA-551 is a Pentaerythritol Tetra C8-10 that can be used for metalworking formulations in synthetic and semi-synthetic lubricants in high temperature applications and for improved lubrication properties. STEPAN MWA-551 can act as a stand-alone chlorinated paraffin replacement or can be combined with phosphate esters offering further enhancements.
Properties
- Physical Form
- Appearance
- Light yellow liquid (at 25°C)
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Acid Value | 0.04 | — | — |
| Color | 60 | — | Apha Scale |
| Density (at 15°C) | 0.96 | g/ml | — |
| Hydroxyl Value | 0.5 | — | — |
| Iodine Value | 0.14 | — | — |
| Moisture Content | 0.05 | % | — |
| Refractive Index (at 25°C) | 1.4538 | — | — |
| Regulated Volatile Organic Chemicals | 0 | % | U.S. EPA |
| Smoke Point (Thin Film) | 174 | °C | — |
| Viscosity (at 100°C) | 6.5 | cSt | — |
| Viscosity (at 25°C) | 56 | cSt | — |
| Viscosity (at 40°C) | 28 | cSt | — |
Regulatory & Compliance
- Chemical Inventories
- Clearances
The international inventories (country clearances) of STEPAN MWA-551 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.
Technical Details & Test Data
- Falex 4-Ball and Falex Pin and Vee Testing
Lubricity is measured using the Falex Four-Ball Wear test and is used to determine the wear-preventing properties of lubricants in metalworking applications. Lubricants are compared using the average size of the scar diameters worn on the three lower clamped balls. STEPAN MWA-551 shows improved lubrication by showing reduced average scar when compared to the current industry standard.
Falex 4-Ball Wear
ASTM D4172BFalex Pin and Vee Test
ASTM D3233Average Scar,
mmTest Load,
lbsFailure Load,
lbsTorque,
lbsTemperature,
⁰FIndustry Standard 0.628 1250 1250 27 166 STEPAN MWA-551 0.588 1500 1475 54 181
Safety & Health
- Health Effects
STEPAN MWA-551 is practically non-toxic orally (LD₅₀ >5 g/kg) and it causes slight skin and minimal eye irritation. See SDS for more information.
Packaging & Availability
- Packaging Type
- Standard Packaging
STEPAN MWA-551 is available in 55-gallon drums.
Storage & Handling
- Storage & Handling
- Normal safety precautions (e.g., gloves and safety goggles) should be employed when handling STEPAN MWA-551. Contact with the eyes and prolonged contact with the skin should be avoided. Wash thoroughly after handling material. See SDS for more information.
- It is recommended that STEPAN MWA-551 be stored in sealed containers and kept in a cool, dry place. Prolonged storage at temperatures above 90°F (32°C) should be avoided. Avoid overheating or freezing.
- 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. See the SDS for further information.