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Toluene-2,6-diisocyanate

Name: Toluene-2,6-diisocyanate
SKU: 0

Basic Information

CAS No.: 91-08-7
Molecular Formula: C₉H₆N₂O₂
Molecular weight: 174.16

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Product Details

Toluene-2,6-diisocyanate (2,6-TDI) is an aromatic diisocyanate used as an important raw material in polyurethane production. Its reactive isocyanate groups allow it to react with polyols and other compounds to form polyurethane materials with different physical properties.

Chemical Properties

roperty	Specification
Chemical Name	Toluene-2,6-diisocyanate
Chinese Name	2,6-Toluene Diisocyanate
CAS No.	1991/8/7
Abbreviation	2,6-TDI / TDI
Synonym	2-Methyl-m-phenylene Diisocyanate
EC No.	202-039-0
Molecular Formula	C₉H₆N₂O₂
Molecular Weight	174.16 g/mol
Chemical Class	Organic Chemical
Chemical Type	Aromatic Diisocyanate / Isocyanate
Appearance	Colorless to pale-yellow liquid or solid, depending on temperature
Odor	Sharp, acrid or pungent odor
Melting Point	Approx. 20–22°C
Boiling Point	Approx. 264–271°C
Density	Approx. 1.22–1.23 g/mL at 25°C
Water Solubility	Reacts with water; should be protected from moisture
Main Applications	Polyurethane foams, elastomers, coatings, adhesives and other polyurethane materials

Safety Information

Item	Information
Hazard Classification	Acute Toxicity, Skin Irritation, Eye Irritation, Skin Sensitization, Respiratory Sensitization, Carcinogenicity, Respiratory Tract Irritation
Signal Word	Danger
GHS Pictograms	GHS06 – Acute Toxicity / GHS08 – Health Hazard
Inhalation Hazard	Fatal if inhaled. May cause respiratory irritation, allergic reactions, asthma symptoms or breathing difficulties.
Skin Contact	Causes skin irritation and may cause an allergic skin reaction.
Eye Contact	Causes serious eye irritation.
Respiratory Sensitization	May cause allergy or asthma symptoms or breathing difficulties if inhaled.
Carcinogenicity	Suspected of causing cancer.
Environmental Hazard	Harmful to aquatic life with long-lasting effects.
Handling	Use only with adequate ventilation. Avoid breathing vapors, mist or aerosols. Avoid contact with skin and eyes.
Personal Protection	Wear suitable protective gloves, protective clothing, eye protection and face protection. Use appropriate respiratory protection where required.
Storage	Keep container tightly closed. Store in a cool, dry and well-ventilated area. Protect from moisture and incompatible materials.
Moisture Sensitivity	Reacts with water and moisture. Keep containers dry and tightly sealed.
Emergency Measures	In case of exposure, follow the applicable SDS and seek immediate medical attention, especially after inhalation.
Safety Documentation	Refer to the latest SDS before handling, storage, transportation or disposal.

Product Usage

Polyurethane Foams
Used as a raw material in the production of polyurethane foams for cushioning and insulation applications.
Polyurethane Elastomers
Used in polyurethane elastomer formulations requiring flexibility, resilience and mechanical strength.
Polyurethane Coatings
Used in coating systems to help produce durable and protective polyurethane finishes.
Adhesives & Sealants
Used as a reactive component in polyurethane adhesives and sealant formulations.
Automotive Materials
Used in polyurethane materials for automotive seating, interior components and other applications.
Furniture & Bedding
Used in polyurethane foam systems for furniture cushioning, mattresses and related comfort products.
Nylon-6 Crosslinking
Can be used as a crosslinking agent for Nylon-6 and other polymer-related applications.

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