Product

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Insights
Solutions
Main Product
Methylene Diphenyl Diisocyanate
Segment
Chemicals
Main-Family
Functional Organic Products
Sub-Family
Isocyanates
Physical State

Solid

Product
Ortho-Rich MDI

Description

Ortho-rich MDI is a pure monomeric Diphenylmethane Diisocyanate containing 45~55% 2,4’-isomer content. Ortho Rich MDI, with a functionality of two, is a solvent-free, light yellow liquid when stored at 20~30℃. It is easily handled at room temperature. Ortho-rich MDIs with higher 2,4’- contents exhibit slower reaction rates with polyols, increased working times, improved compatibility with the polyol component, and produce prepolymers with lower viscosities due to the differential reactivity of the slower reacting 2’-Isocyanate which promotes end-capping of a Polyol vs. chain extension. Processors use Ortho-Rich MDI in the non-foam Polyurethane area as prepolymers for coating, adhesives and sealants, and in the flexible, semi-rigid Polyurethane foam area and related applications.

Source: Methylene Diphenyl Diisocyanate (MDI) - Essential Building Blocks for Polyurethanes. Gantrade

 

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Methylene diphenyl diisocyanate isomers and applications
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Title Date
Identifiers

No Identifiers defined

Chemical Data
Chemical Formula

C15H10N2O2

Molecular Weight (g/mol)
220.25
Freezing Point (°C)
20
Boiling Point (°C)
208
Sulfur Content (wt%)
0
Specific Gravity
1.22
Crude Data
API Gravity
10
Country
Product Settings
Default
Status
A
Content provided by
Transaction Name Date
Modified by UserPic   Kokel, Nicolas 8/9/2025 12:41 PM
Added by UserPic   Kokel, Nicolas 10/27/2021 5:40 AM