Description

Tolylene-2,4-Diisocyanate CAS NO 584-84-9 is a key aromatic diisocyanate monomer, primarily serving as a fundamental building block in polyurethane chemistry. Its high reactivity with polyols makes it indispensable for creating a vast array of durable and versatile polymeric materials. This product is essential for manufacturers in the coatings, adhesives, sealants, elastomers (CASE), and flexible foam industries seeking reliable and consistent raw material performance.

Application

• Flexible Polyurethane Foam: Primary component for producing slabstock and molded flexible foams used in furniture, mattresses, and automotive seating.
• Coatings, Adhesives, Sealants, and Elastomers (CASE): A critical raw material for high-performance polyurethane coatings, industrial adhesives, construction sealants, and thermoplastic polyurethane (TPU) elastomers.
• Rigid Polyurethane Foam: Used in formulations for insulation panels, refrigeration, and construction applications requiring excellent thermal properties.
• Binder Systems: Employed in the production of foundry cores, composite wood products, and abrasives.
• Automotive Components: Key ingredient for manufacturing interior trim, steering wheels, and other polyurethane-based automotive parts.
• Footwear: Used in the production of shoe soles and other components requiring durability and flexibility.

Basic Information

Item	Detail
Product Name	Tolylene-2,4-Diisocyanate
CAS No.	584-84-9
Molecular Formula	C9H6N2O2
Molecular Weight	174.16 g/mol
Synonyms	2,4-Toluene Diisocyanate; 2,4-TDI; Toluene-2,4-diisocyanate; 2,4-Diisocyanato-1-methylbenzene; TDI; Mondur TDS; Desmodur T80; Nacconate 100; Tolylene Diisocyanate; 4-Methyl-m-phenylene diisocyanate
EINECS	209-544-5

Quality Control

Our Tolylene-2,4-Diisocyanate is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. The production process adheres to relevant industry standards, and each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing key parameters such as assay, isomer content, and hydrolyzable chlorine. We are committed to meeting the specific requirements of our global B2B partners.

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) and highly volatile nature, containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent moisture absorption and polymerization. Recommended storage temperature is 15-25°C. Keep away from strong bases, alcohols, amines, and water.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (Titration)	≥ 99.5 %
2,4-Isomer Content	≥ 99.0 %
2,6-Isomer Content	≤ 1.0 %
Hydrolyzable Chlorine	≤ 0.01 %
Acidity (as HCl)	≤ 0.005 %
Specific Gravity (25°C)	1.22 - 1.23
Refractive Index (n20D)	1.565 - 1.568

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