MDI100
Product Name diphenylmethane diisocyanate
Code WANNATE®MDI-100
Structure
Product Description
WANNATE®MDI-100 isdiphenylmethane diisocyanate, the content of 4,4'diphenylmethane diisocyanates is over 98%. It is a white or pale yellow solid at room temperatures. When melted, it becomes a colorless to pale yellow liquid.
Specification
|
Appearance |
Solid：White to light yellow- green crystal Liquid: Clear liquid，No mechanical impurities |
|
MDI Content％ |
≥99.6 |
|
2,4’-MDI Content％ |
≤2.0 |
|
4,4’-MDI Content％ |
≥97.0 |
|
Chromatic Number |
≤30 |
|
Cyclohexane insoluble％ |
≤0.200 |
|
Crystallization Point℃ |
≥38.1 |
|
Hydrolysable Chlorine％ |
≤0.0030 |
Application
WANNATE®MDI-100 is pure MDI. It is a white or pale yellow solid at room temperatures. When melted, it becomes a colorless to pale yellow liquid. WANNATE®MDI-100 can be widely used in the production of various polyurethane elastomers including cellular elastomers, thermoplastic elastomers, cast elastomers, synthetic leather, adhesives, coatings and sealants.
Package
210 L (55 gal.) steel drums, 235kg (517 lbs.)/drum or
18L (5 gal.) pails, 20kg (44lbs.) / pail or
20 ton (44,000 lb) insulated tank lorry (limited district in mainland China)
Storage
Container: Freshly manufactured WANNATE®MDI-100 is a clear liquid when molten. As WANNATE®MDI-100 is a reactive chemical, reaction with atmospheric moisture occurs easily and leads to the formation of insoluble ureas and carbon dioxide 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 purging with dry nitrogen. Temperature: Extended storage will result in insoluble dimers. The rate of dimer formation varies with temperature. The lower the WANNATE®MDI-100 storage temperature the better is. It is best to store solid WANNATE®MDI-100 below 0℃. It is recommended melted liquid WANNATE®MDI-100 be stored at 44℃-46℃and to use it up as soon as possible.
Shelf Life
Under recommended storage conditions, the shelf life of WANNATE®MDI-100 is 3 months since the date of production. Product stored past the expiration date may still be suitable for use as long as key physical and chemical properties are still within specification. Liquid WANNATE®MDI-100 delivered by insulated tank lorry has a shelf life of 10 days.