Phthalic Anhydride (PA) CAS: 85-44-9 Phthalic Anhydride is a white solid flakes or molten liquid with the molecular formula C8H4O3 .It’s the principal form of phthalic acid and important industrial chemical of plasticizers for plastics. Phthalic Anhydride Chemical Structure Composition. Production Phthalic Anhydride is obtained by catalytic reforming of ortho-Xylene or naphtalene. Uses Alkyd & […]
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Methylene Diphenyl Diisocyanate (MDI)
Methylene Diphenyl Diisocyanate is produced by a 4 steps reaction based on benzene as feedstock.
There are 3 isomers of MDI : 2,2-MDI, 2,4-MDI, and 4,4-MDI. The 4,4 isomer is known as pure or monomeric MDI (mMDI).The Polymeric MDI so called Crude MDI contains monomeric MDI and products with higher MW (pMDI).
MDI is used to produce foam for Insulation, PU elastomer, shoe soles, systems houses, synthetic leather, cold stores, sport floor, foundry, mining, …
MDI is the least hazardous of the commonly available isocyanates because of its low vapour pression but it is not benign.
Arpadis is one of the largest chemical distributor in Europe.
Arpadis is handling the storage, transport, export & import formalities of Methylene Diphenyl Diisocyanate globally.