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 […]
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Purified Isophthalic acid
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Purified Isophthalic Acid (PIA)
Cas: 121-91-5
Isophthalic Acid is an organic compound with the molecular formula C8H6O4. It’s a colourless solid and it’s an isomer of phthalic acid and terephthalic acid.
Isophthalic Acid Chemical Structure Composition.
Production
It is produced by oxidizing meta-xylene using oxygen. The process employs a cobalt-manganese catalyst. Purified Isophthalic acid is a colorless crystalline solid with a purity of >99.8%.
USE
Purified Isophthalic acid (PIA) is mainly used in production of bottle of Polyethylene terephthalate (PET), unsaturated polyester resins, alkyds/polyesters, FRP (Fiberglass Reinforced Plastics), polyurethane resins (insulation materials).
PIA improves clarity of bottles, improves thermal/mechanical/chemical resistance of unsaturated polyester resins, increase resistance to water, overall durability & weatherability and hardness of Alkyds/Polyesters.
Arpadis is one of the largest chemical distributor in Europe.
Arpadis is handling the storage, transport, export & import formalities of Isophthalic Acid globally.