Description

Toluene Diisocyanate CAS NO 26471-62-5 is a vital aromatic diisocyanate monomer, primarily used as a key building block in polyurethane chemistry. Its high reactivity with polyols enables the production of versatile polyurethane polymers with tailored properties. This essential chemical is widely demanded by manufacturers in the flexible and rigid foam, coatings, adhesives, sealants, and elastomer (CASE) industries.

Application

• Flexible Polyurethane Foam: Primary component for manufacturing slabstock and molded foams used in furniture, mattresses, and automotive seating.
• Rigid Polyurethane Foam: Core material for insulation panels in construction, refrigeration appliances, and industrial insulation.
• Coatings, Adhesives, Sealants, and Elastomers (CASE): Used to formulate high-performance industrial and protective coatings, durable adhesives, waterproof sealants, and flexible elastomers.
• Automotive Components: Production of interior parts, sound-dampening materials, and lightweight structural elements.
• Binder Systems: Used in the production of foundry cores and molds, as well as composite wood products like particleboard.
• Specialty Elastomers: Manufacture of spandex fibers, skateboard wheels, and other high-resilience polyurethane products.

Basic Information

Product Name	Toluene Diisocyanate
CAS No.	26471-62-5
Molecular Formula	C9H6N2O2
Molecular Weight	174.16 g/mol
Synonyms	Toluene-2,4-diisocyanate; Toluene-2,6-diisocyanate; 2,4-TDI; 2,6-TDI; TDI-80 (80/20 isomer mixture); Toluene diisocyanate mixture of isomers; Tolyene diisocyanate; Desmodur T80; Mondur TD-80; Nacconate 100; Isocyanic acid, methyl-m-phenylene ester; m-Tolylene diisocyanate
EINECS	247-722-4

Quality Control

Our Toluene Diisocyanate is manufactured under stringent process controls to ensure batch-to-batch consistency and high purity. Quality is verified through comprehensive analytical testing, including isomer ratio (typically 80:20 TDI), assay, and impurity profiling. Certificates of Analysis (COA) documenting all critical parameters are provided with each shipment to guarantee compliance with your specifications and industry standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from heat, sparks, and open flame. Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent reaction with atmospheric moisture. Recommended storage temperature is 15-25°C. Isolate from amines, alcohols, acids, and oxidizing agents.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Assay (TDI Isomers)	≥ 99.5 %
Isomer Ratio (2,4- / 2,6-TDI)	80 / 20 (Typical, other ratios available)
Hydrolyzable Chlorine	≤ 0.01 %
Acidity (as HCl)	≤ 0.005 %
Color (APHA)	≤ 30
Specific Gravity (25°C)	1.22 - 1.23
Refractive Index (nD25)	1.565 - 1.568

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.