Zinc p-toluenesulfonate hydrate
Zinc p-toluenesulfonate hydrate (CAS: 123334-05-4) is the zinc salt of p-toluenesulfonic acid providing a source of zinc ions combined with the solubilizing sulfonate anion. This white crystalline compound serves as a catalyst in esterification, polycondensation, and curing reactions where its mild Lewis acidity and solubility in polar media are advantageous. The textile industry employs zinc tosylate as an auxiliary in dyeing and finishing processes, while polymer chemistry uses it as a curing catalyst for epoxy, polyurethane, and silicone systems. It also functions as a flame retardant synergist and smoke suppressant in certain polymer formulations, and as an intermediate for preparing other zinc compounds. The hydrate form’s stability and non-corrosive character compared to zinc chloride make it preferable for sensitive applications. With its dual metal-organic functionality, zinc p-toluenesulfonate hydrate is a versatile processing aid in chemical manufacturing.
– Polymerization Catalyst: Used as a curing catalyst for epoxy resins, polyurethanes, and silicones providing controlled reaction rates and complete curing.
– Esterification Reactions: Serves as an efficient catalyst in ester formation and polycondensation for polyester and plasticizer production.
– Textile Processing: Applied in dyeing and finishing formulations improving dye uptake and fabric handle.
– Flame Retardancy: Employed as a synergist and smoke suppressant in polymer flame retardant formulations.
Product Name: Zinc p-toluenesulfonate hydrate
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