Enhanced TDS
Identification & Functionality
- Chemical Family
- Fluids & Lubricants Functions
- Function
- Anti-Wear Agent, Extreme Pressure Additive
- Product Code
- MITM12621
- Technologies
- Product Families
Features & Benefits
- Fluids & Lubricants Features
- Labeling Claims
- Performance Benefits
A fluids and lubricants formulator will find that the physical and chemical properties of phosphate esters make them easy to work with:
- Triaryl phosphates exhibit excellent solubility in mineral oil and synthetic base fluids, including more difficult base fluids such as polyalphaolefins (PAOs) and silicones.
- Phosphate esters are desirable for use in high performance fluids as they contain no metals or chlorine, and do not darken the finished fluid.
- Phosphate esters are easy to pump, mix and store at ambient temperatures.
- Phosphate esters can show multi functional capabilities in providing a controlled amount of seal swell, and in some systems, metal surface passivation.
- Phosphate esters low odor, low volatility and low skin irritation minimize handling and blending concerns.
- Phosphate esters contain no metallic elements, and thus contribute no ash to the formulation.
Applications & Uses
- Compatible Substrates & Surfaces
- Fluids & Lubricants End Use
- Fluids & Lubricants Type
- Markets
- Applications
Properties
- Physical Form
- Soluble In
Regulatory & Compliance
- Certifications & Compliance
- Chemical Inventories
Technical Details & Test Data
- Solubility
Typical triaryl phosphate additive concentrations vary from 0.5% to 3.0%, depending on formulation complexity. Usually 0.5-1.5% provides acceptable performance in relatively simple systems with petroleum and synthetic base stocks. More complex formulations, where several components might interact with metal surfaces, may require adjustment of several components or an increase in the phosphate concentration to 2-3%. These higher levels are usually needed if controlled seal swell is desired. In some synthetic base stocks, the solvent power of phosphate esters can be used to significant advantage. Levels of phosphate up to 5% or more can function as an aid in dissolving other additives having only limited solubility in the base oil.
- Performance Data
Durad® phosphate esters clearly demonstrate an ability to reduce friction and wear in industry standard tests. The excellent performance identified in four-ball testing predicts extended equipment life and reduced energy consumption. Over 50 years of commercial use more than amply demonstrate that the field performance correlates well with this laboratory data. Under severe load conditions, a combination of antiwear and extreme pressure additives is required to protect surfaces in full sliding contact. Phosphate esters are considered mild extreme pressure additives and can be used to improve the performance of other phosphorus, sulfur, or chlorine extreme pressure additives. Triaryl phosphates are not as active as many sulfurized or chlorinated EP additives but they offer the advantage of being non-corrosive and non-staining to most metals. In cutting and grinding fluids, the polishing action of triaryl phosphates results in an excellent surface finish. The machined product exhibits a reduced tendency to rust compared with products machined with lubricants containing more corrosive sulfur- and chlorine-containing additives. High performance lubricant additives ought not to reduce the stability or operating range of base fluids. Triaryl phosphates exhibit thermal and oxidative stability that is superior to most base oils, resulting in extended fluid life.
Packaging & Availability
- Packaging Type
Principal Information
- Group Principal Number
- S000008
- Principal
Storage & Handling
- Storage Conditions
In a dry place at room temperature approx. 24 months
Other
- Appearance (SDS)
- Liquid
- Color (SDS)
- Colorless
- Item Number
- Odor (SDS)
- Odorless
- USA/DOT UN Number
- Not Applicable
- Optical Properties
Value Units Test Method / Conditions Color Scale 20.0 Pt-Co 2b889752-a817-4a6e-bd49-029825e637fd Color Scale 20.0 Pt-Co ISO 221 - Thermal Properties
Value Units Test Method / Conditions Decomposition Temperature 240.0 °C Thermo-Gravimetric Analysis at 30-500°C,10°C/min, N₂, 50 mL/min, 10% weight loss Decomposition Temperature 223.0 °C Thermo-Gravimetric Analysis at 30-500°C,10°C/min, N₂, 50 mL/min, 5% weight loss Decomposition Temperature 289.0 °C Thermo-Gravimetric Analysis at 30 - 500°C, 10°C/min, N₂ Onset of thermal decomposition Decomposition Temperature 231.0 °C Thermo-Gravimetric Analysis at 30-500°C,10°C/min, O₂, 50 mL/min, 10% weight loss Decomposition Temperature 215.0 °C Thermo-Gravimetric Analysis at 30-500°C,10°C/min, O₂, 50 mL/min, 5% weight loss Decomposition Temperature 272.0 °C Thermo-Gravimetric Analysis at 30-500°C,10°C/min, O₂ Onset of oxidat ion - Chemical Properties
Value Units Test Method / Conditions Acid Number 0.04 mg KOH/g ISO 6619 - Shelf Life & Stability
Value Units Test Method / Conditions Shelf Life 24.0 mo - Physical Properties
Value Units Test Method / Conditions Fire Point 346.0 °C ASTM D92 Fire Point 346.0 °C Open Cup Flash Point 248.0 °C ASTM D92 Flash Point 248.0 °C Open Cup Kinematic Viscosity 4.9 cSt ISO 3104 at 100°C Kinematic Viscosity 48.3 cSt ISO 3104 at 25°C Kinematic Viscosity 30.8 cSt ISO 3104 at 40°C Pour Point -15.0 °C ISO 3016 Specific Gravity 1.17 - ISO 3675 at 20°C - Material Composition
Value Units Test Method / Conditions Phosphorus Content 8.3 %(W/W) ISO 11890-2 Phosphorus Content 8.3 %(W/W) ISO 12185 - SDS Physical and Chemical Properties
Value Units Test Method / Conditions Density (SDS) 1.76 g/cm³ at 25°C Flash Point (SDS) min. 199.0 °C Cleveland Open Cup Ignition Temperature (SDS) 535.0 °C ASTM E659 Kinematic Viscosity (SDS) 48.3 mm²/s at 25°C Kinematic Viscosity (SDS) 4.9 mm²/s At 100°C Kinematic Viscosity (SDS) 30.8 mm²/s At 40°C Log Partition Coefficient (Log Pow) (SDS) 4.68 - at 25°C, n-ocatanol-water Melting Point (SDS) -21.0 °C Relative Density (SDS) 1.14-1.18 - at 20°C Solubility In Water (SDS) 3.2 mg/L At 22°C Vapor Pressure (SDS) max. 1.0 hPa at 150°C Viscosity (SDS) 28.8-35.2 mPa.s ASTM D445 at 40°C