Meta-Toluene Diamine
- CAS No.25376-45-8
- GradeIndustrial / Pharmaceutical
- Availability● In Stock
High-purity Meta-Toluene Diamine (CAS 25376-45-8) engineered for TDI synthesis and polyurethane curing applications.
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Product Overview
Meta-Toluene Diamine (TDA) represents a critical intermediate in the modern polymer and chemical synthesis industries. Identified by CAS number 25376-45-8, this compound serves as a foundational building block for the production of Toluene Diisocyanate (TDI) and various high-performance polyurethane systems. Our manufacturing process ensures exceptional consistency in isomer distribution, specifically optimizing the ratio between 2,4-diaminotoluene and 2,6-diaminotoluene to meet rigorous industrial standards.
As a leading global manufacturer, we understand the nuances of aromatic diamine chemistry. The product is supplied as a light yellow solid, which may darken to purple or black upon prolonged exposure to air or light due to oxidation. This natural characteristic does not affect its chemical reactivity or performance in downstream applications. We maintain strict quality control protocols to guarantee a total amine content exceeding 98.5 percent, ensuring reliable reaction kinetics for our partners.
Technical Specifications
| Parameter | Specification |
|---|---|
| CAS Number | 25376-45-8 |
| Appearance | Light yellow solid |
| Total Content (2,4-TDA + 2,6-TDA) | ≥ 98.5% |
| Melting Point | 88°C - 96°C |
| Boiling Point | 283°C |
| Moisture Content | ≤ 0.05% |
| Isomer Ratio (2,4-TDA) | Approx. 80% |
| Isomer Ratio (2,6-TDA) | Approx. 20% |
Industrial Applications
The versatility of Meta-Toluene Diamine makes it indispensable across multiple sectors. Its primary application lies in the synthesis of TDI, a key raw material for flexible and rigid foams. When used as a starting agent for polyether polyols, TDA contributes to the formation of uniform and fine-celled foam structures. This microstructure enhancement significantly improves the thermal insulation properties and low-temperature flexibility of the final polyurethane products.
Beyond foam production, this aromatic diamine functions as an effective curing agent for epoxy resins. It facilitates the creation of durable coatings and adhesives with superior mechanical strength. Additionally, it is utilized in the synthesis of specialized aromatic diamine curing agents such as dimethyltoluene diamine (DMTDA) and diethyltoluenediamine (DETDA), which are essential for polyurethane elastomers. The compound also serves as a vital intermediate in the dye industry, enabling the production of various azo dyes and pigments.
Quality Assurance and Logistics
We prioritize safety and stability throughout the supply chain. Our facility focuses on the research and development of advanced chemical intermediates, including flame retardants and stabilizers, with an annual supply capacity exceeding 8,000 tons. Each batch of Meta-Toluene Diamine undergoes comprehensive testing to verify purity and isomer composition. A Certificate of Analysis (COA) is provided with every shipment to ensure transparency and compliance.
For logistics, we offer flexible packing options to suit diverse operational needs. Standard packaging includes 200 kg iron drums for smaller batches, while large-scale industrial requirements are met via 22-ton ISOTANK containers. Proper storage in a cool, dry, and well-ventilated area away from direct sunlight is recommended to maintain product integrity. Partner with us for reliable supply, competitive bulk pricing, and technical support tailored to your synthesis routes.
