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MDI50

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Name

MDI50

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Product Name      diphenylmethane diisocyanate

 

Code              WANNATE®MDI-50

 

Structure    

                

 

Product Description

 

WANNATE® MDI-50 is a mixture of 2,4’ and 4,4’ diphenylmethane diisocyanates, or called 2,4’ rich isocyanate. It is a clear, colorless to pink liquid at ambient temperatures.

 

Specification

 

Appearance

Colorless to Pink Liquid

MDI Content    

99.6

2,4-MDI Content

50.0~54.0

4,4-MDI Content

44.5~49

Chromatic Number

30

Cyclohexane insoluble

0.200

Crystallization Point

15.0

Hydrolysable Chlorine

0.0050

 

Application

WANNATE® MDI-50 is a mixture of 2,4and 4,4diphenylmethane diisocyanates, or called 2,4rich isocyanate. It is a clear, colorless to pale yellow liquid at ambient temperatures. Due to the different reactivity between 2,4and 4,4MDI, WANNATE® MDI-50 provides better flow ability for the production of injection molding. WANNATE ® MDI-50 can be widely used in the production of various PU elastomers, adhesives, paint and automotive parts. It also can be used as a substitute for TDI in the production of flexible PU foam, which will reduce productive cost and environmental pollution and improve handling conditions.

 

Package

210L iron drums, 235kg/drum

 

Storage

Container: Freshly manufactured WANNATE®MDI-50 is a clear liquid at room temperature. It tends to turn yellow upon exposure to air and light. As WANNATE® MDI-50 is a reactive chemical; reaction with atmospheric moisture occurs easily and leads to the formation of MDI-50 VersionV 6.0 2 / 3 Date of issue: Mar.1,2017 insoluble urea and CO2 gas which can lead to pressure build-up in closed containers and increases in the viscosity of the product. Containers must therefore be absolutely dry and carefully sealed after congested with dry nitrogen. Temperature: Extended storage will result in insoluble dimer. It is best to store at 15-40.

 

Shelf Life

Under recommended storage conditions, the shelf life of WANNATE® MDI-50 is 6 months since the date of production.

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