Biphenyl diphenyl ether eutectic

Biphenyl diphenyl ether eutectic (CAS 8004-13-5, EC 616-827-0) is a binary eutectic mixture of biphenyl and diphenyl oxide, commercially known under trade names including Diphyl, Dinil, and Dinyl. It carries no E-code designation and is classified under HS code 29093090.

In oil, gas, and energy applications, this eutectic serves as a high-temperature heat transfer fluid, circulating through closed-loop systems to transport thermal energy between process stages without decomposing under sustained elevated temperatures. In metalworking, it functions as a carrier solvent, maintaining process consistency in heat treatment baths where thermal stability is critical.

This product is available in liquid form and supplied in bulk or drummed formats suited to industrial procurement volumes. It falls under REACH regulation and requires an up-to-date Safety Data Sheet for EU trade. Buyers should confirm grade specification and purity documentation directly with the supplier prior to ordering.