Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Chemical Name
- Fluids & Lubricants Functions
- Technologies
- Product Families
Features & Benefits
- Fluids & Lubricants Features
Applications & Uses
- Markets
- Compatible Substrates & Surfaces
- Fluids & Lubricants Type
- Fluids & Lubricants End Use
- Applications
STEPAN MWA-390 is an alcohol phosphate used as a low foaming emulsifier in synthetic and semi-synthetic lubricants, gear and chain oils, metalworking fluids, hydraulic fluids, and plasticizers.
- Solubility in Various Solvents
Solubility in Various Solvents (wt % STEPAN MWA-390 in solvent)
Solvent 5.00% 1.00% 0.10% Water Turbid, Separates Turbid Separates Turbid, Stable 10% Sodium Hydroxide Turbid, Separates Turbid Separates Turbid, Stable 10% Sulfuric Turbid, Separates Turbid Separates Turbid, Stable Ethanol Clear Solution Clear Solution Clear Solution Isopropanol Clear Solution Clear Solution Clear Solution Ethylene Glycol Turbid, Stable Turbid, Stable Turbid, Stable Butyl Cellusolve Clear Solution Clear Solution Clear Solution Acetone Clear Solution Clear Solution Clear Solution Kerosene Turbid, Separates Turbid Separates Clear Solution Stoddard Solvent Turbid, Separates Turbid Stable Clear Solution Mineral Oil Turbid, Separates Turbid Stable Clear Solution Benzene Clear Solution Clear Solution Clear Solution Carbon Tetrachloride Clear Solution Clear Solution Clear Solution Butyl Stearate Turbid, Separates Turbid Stable Clear Solution
Properties
- Physical Form
- Appearance
- Water white clear liquid (at 25°C)
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Actives Content | 100 | % | — |
| Boiling Point (at 760mm Hg) | 200 | °C | — |
| Cloud Point (in 1% aqueous solution) | max. 25 | °C | — |
| Critical Micelle Concentration (CMC) | 0.005 | % | — |
| Density (at 25°C) | 1.07 | g/ml | — |
| Draves Wetting (% product required for 25 seconds, at 25°C) | 0.13 | % | — |
| Draves Wetting (% product required for 25 seconds, at 71°C) | 0.06 | % | — |
| Flash Point | 138 | °C | TAG Flash Point Tester |
| HLB | 6.7 | — | — |
| pH (in 1% aqueous, at 25°C ) | 6 | — | — |
| Ross-Miles Foam Height (in 0.1% aqueous, at 40°C, Hard Water 10 min) | 5 | mm | — |
| Ross-Miles Foam Height (in 0.1% aqueous, at 40°C, Hard Water 10 min) | 40 | mm | — |
| Ross-Miles Foam Height (in 0.1% aqueous, at 40°C, Hard Water initial) | 15 | mm | — |
| Ross-Miles Foam Height (in 0.1% aqueous, at 40°C, Hard Water initial) | 40 | mm | — |
| Stability in Acids (at 25°C) | Stable | — | — |
| Stability in Bases (at 25°C) | Stable | — | — |
| Surface Tension (in 0.01% aqueous, at 25°C) | 26 | dynes/cm | — |
Regulatory & Compliance
- Chemical Inventories
Safety & Health
- Health Effects
STEPAN MWA-390 is practically non-toxic orally (Oral LD₅₀ = 7500 mg/kg in rats) and causes severe skin and mild eye irritation. See SDS for more information.
Packaging & Availability
- Packaging Type
- Standard Packaging
STEPAN MWA-390 is available in drums.
Storage & Handling
- Storage & Handling
Normal safety precautions (e.g., gloves and safety goggles) should be employed when handling STEPAN MWA-390. Handling Contact with eyes and skin should be avoided. STEPAN MWA-390 should be stored in a cool, dry place in closed containers. See SDS for more information.
- Stable in Freezing at 25°C(77°F)
- Stable in Heat at 25°C (77°F)
- Product Benefits
- Imparts excellent corrosion inhibition, especially for aluminum metal.
- Alternative anionic emulsifier to heavy sulfonates for providing antiwear properties
STEPAN® MWA Products Product Class Functional Characteristics Emulsification Lubricity Antifoaming Metal Cleaning Hard Water Tolerance Antimisting Corrosion Inhibition Coupling Agent 300 Series Phoshate X X X X