TriPropylene Glycol (TPG) Cas 24800-44-0 Tripropylene Glycol or TPG is mixture of isomers present as a clear liquid, odorless and with a medium viscosity. It’s naturally hygroscopic (it attracts water from atmosphere). It is completely soluble in water and miscible with many organic solvents. The molecular formula is C9H20O4. Tripropylene Glycol Chemical Structure Composition. Production […]
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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.