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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Toluene Diisocyanate (TDI)
Toluene Diisocyanate (TDI) CAS:584-84-9 TDI (Toluene Diisocyanate) is produced by a 3 step reaction. The first step is the nitration of toluene to obtain dinitrotoluene. Second step is the catalytic hydrogenation of Dinitrotoluene into toluene diamine TDA. Finally, the TDA react with phosgene to produce the TDI. TDI is commonly sold under 3 different ratio […]