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Sku: CG 403-S
CG 403 TMPTO, Trimethylolpropane Trioleate, CAS 57675-44-2, ISO 46 Hydraulic
Description
Trimethylolpropane Trioleate (TMPTO, CAS 57675-44-2, CG 403) is a high-performance synthetic ester base oil designed for advanced industrial lubrication systems where mineral oils fail to deliver sufficient thermal stability, biodegradability, and low-temperature fluidity. In modern hydraulic systems and metalworking operations, issues such as oil oxidation, unstable viscosity under temperature fluctuation, and environmental compliance pressure require a more stable and sustainable lubricant platform.
CG 403 is produced via esterification of trimethylolpropane with oleic acid, forming a polyol ester structure (C60H110O6) with excellent lubricity, high viscosity index, and outstanding biodegradability. It is widely adopted as a biodegradable hydraulic fluid base stock, especially for ISO VG 46 fire-resistant hydraulic oil formulations and high-load metalworking fluids.
Specification
| Product Name | Trimethylolpropane Trioleate (TMPTO) |
| CAS No. | 57675-44-2 |
| Molecular Formula | C60H110O6 |
| Molecular Weight | 927.53 |
| Appearance | Light yellow transparent liquid |
| Kinematic Viscosity (40°C) | 45–55 cSt |
| Kinematic Viscosity (100°C) | 8.5–10.5 cSt |
| Viscosity Index | ~180 |
| Flash Point (Open Cup) | ≥300°C |
| Pour Point | ≤ -35°C |
| Density (20°C) | 0.92 g/cm³ |
| TAN | ≤1.0 mg KOH/g |
Features
- High Viscosity Index Synthetic Ester: Maintains stable lubrication performance under wide temperature ranges in hydraulic and industrial systems.
- Excellent Lubricity: Polyol ester structure provides strong oil film strength and reduced metal-to-metal friction.
- High Thermal and Oxidation Stability: Suitable for high-temperature hydraulic and metalworking environments.
- Low Pour Point (-35°C): Ensures reliable cold-start performance in low-temperature applications.
- High Flash Point (≥300°C): Enhanced operational safety for industrial lubrication systems.
- Biodegradable Ester Base Oil: Environmentally acceptable lubricant (EAL) for sustainable industrial formulations.
Applications
- Fire-Resistant Hydraulic Fluids (ISO VG 32/46/68) as synthetic ester base stock.
- Metalworking Fluids including cutting, drawing, rolling, and stamping oils.
- Industrial Lubricants such as gear oils, compressor oils, and chain lubricants.
- Biodegradable Hydraulic Systems requiring low environmental impact lubricants (EAL formulations).
- Textile processing lubricants and industrial auxiliary oils.
Manufacturing Process
TMPTO (CG 403) is manufactured via an esterification reaction between trimethylolpropane (TMP) and oleic acid under acid catalysis. The reaction produces a tri-ester structure that delivers improved oxidative stability, lubricity, and biodegradability compared with conventional mineral oil-based lubricants.
Chemical Stability
TMPTO is generally stable under neutral conditions but may undergo hydrolysis under strong acidic or alkaline environments, reverting to trimethylolpropane and oleic acid. Proper storage in dry and neutral conditions is recommended to maintain performance integrity.
Documents
FAQ
What is TMPTO used for in industrial applications?
TMPTO is widely used as a synthetic ester base oil in fire-resistant hydraulic fluids, biodegradable lubricants, and metalworking fluids due to its high viscosity index, excellent lubricity, and thermal stability.
Why is TMPTO preferred over mineral oil?
Compared with mineral oils, TMPTO offers better oxidation stability, higher flash point, lower environmental impact, and improved biodegradability, making it suitable for sustainable lubrication systems.
Is TMPTO suitable for ISO VG 46 hydraulic oil formulations?
Yes. TMPTO is commonly used as a base stock for ISO VG 46 hydraulic fluids, providing stable viscosity performance and excellent low-temperature flow behavior.
Is TMPTO environmentally friendly?
Yes. TMPTO is a biodegradable polyol ester derived from oleic acid, making it an environmentally acceptable lubricant (EAL) for industrial applications.
What are the storage conditions for TMPTO?
Store in a cool, dry environment away from direct sunlight. Avoid strong acids, bases, and moisture to maintain stability.
When can I expect my order to ship?
Most orders are filled and shipped within 2-3 business days from the time they are received.
Our standard shipping usually take 2-5 days.
We also provide express shippping for time-sensitive deliveries.
Email contact@biofargo.com if you have any requirements.
