Covestro (formerly Bayer) Desmodur T80 Toluene-2,4-diisocyanate TDI80 584-84-9

Product Introduction
Desmodur® T80 is an 80:20 ratio of the two isomeric forms 2,4-toluene-diisocyanate [A] and 2,6-toluene diisocyanate [B] compound. At room temperature, the product was a water-opaque liquid. Desmodur® T80 is used in the production of polyurethanes.

sample
must be protected from any form of moisture.

Specifications

Other Data* DIN 53175

Flashpoint

127

°C

DIN 51758

*These values ​​provide general information and are not part of product specifications

Storage
– Store in original sealed Covestro container.
– Recommended storage temperature: 18 – 40°C.
– Protects against moisture, heat and foreign objects.

General Information
This product is sensitive to moisture and heat. It should be protected from contact with atmospheric moisture. Higher storage temperatures for longer periods of time may cause discoloration or the formation of insoluble deposits. The product crystallizes at temperatures below 15°C. However, careful melting at temperatures up to 50°C will re-solidify the product without any adverse effect on its quality. The contact surface temperature may not exceed 80°C. The recrystallized product must be homogenized, since crystallization leads to a change in the isomer ratio between the crystallization and the liquid phase.
After removing the product, the opened container must be resealed. For long-term storage, the product should be covered with nitrogen. The product reacts with water to release carbon dioxide. During storage, transfer and handling of the product, contact with water in any form (wet containers, aqueous solvents, humid air) must be prevented, since the generation of carbon dioxide may lead to a dangerous increase in pressure. Simultaneously formed polyurea may cause haze. They can also cause clogging and damage to filters, pumps and pipes.

Storage Time
Covestro represents that within twelve months after the date of shipment stated in the corresponding shipping document, the product will conform to the specifications stated in the above “Specifications or characteristic data” section or value, as long as the product is stored in full compliance with the storage conditions described and referenced in the “Storage” section above and otherwise properly handled.
A failure within a twelve-month period does not necessarily mean that the product no longer meets specifications or setpoints. However, before pre-declaring a product, Covestro recommends testing it if it still meets the specifications or set values. Covestro makes no representations about the products after the twelve-month period, and Covestro is not responsible or liable for products that are out of specification or set values ​​after the twelve-month period.

Labels and REACH applications
This product data sheet should only be used in conjunction with the latest version of the corresponding safety data sheet. Updating safety-related information in accordance with statutory requirements – will only be reflected in the SafetyData Sheet, copies of which will be revised and distributed. Information on current classification and labelling, application and treatment methods, and other safety-related data can be found in the currently valid SafetyData table.

Processing direction
Recommended processing temperature: 20 – 25°C.