TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The corrosion inhibitor comprises at least one of the azole compound of the formula (I-IV).R = H, halo such as Cl or Br, or 1-20C alkyl;R1 = H, 1-20C alkyl, and/or SH or SR group;X = N, C-SH or CH; andY1 = N, C-R or CH group.The corrosion inhibitor comprises benzotriazole, tolytriazole and/or mercaptobenzothiazole. The treatment corrosion inhibitor comprises an azole compound. The corrosion inhibiting heat transfer fluid further comprises an alcohol that is methanol, ethanol, propanol, butanol, furfurol, ethylene glycol, diethylene glycol, triethylene glycol, 1,2-propylene glycol, 1,3-propylene glycol, dipropylene glycol, butylene glycol, glycerol, monoethylether of glycerol, dimethyl ether of glycerol, 1,2,6-hexanetriol, trimethylolpropane and/or methoxyethanol. The heat transfer fluid corrosion inhibitor comprises an azole compound. The treatment corrosion inhibitor and the heat transfer fluid corrosion inhibitor comprise the same azole compound. The heat transfer fluid corrosion inhibitor further comprises a siloxane based surfactant and/or a colloidial silica. The ion of the assembly results from a treatment corrosion inhibitor. The heat transfer fluid comprises a heat transfer fluid corrosion inhibitor. The heat transfer fluid component is a colorant, a corrosion inhibitor, an antifoaming agent, a bitterant and/or a dispersant. Preferred Properties: The heat transfer fluid component has a pKa or pKb of 5-14 in an aqueous solution at 25degreesC. The corrosion inhibiting heat transfer fluid has a conductivity of less than 200 (preferably 0.05-10) muS/cm.    TECHNOLOGY FOCUS - POLYMERS - Preparation (Claimed): Preparation of a treated ion exchange resin, comprises: contacting the ion exchange resin with an aqueous inhibitor solution comprising a heat transfer fluid component having a pKa or pKb of greater than 5 in an aqueous solution at 25degreesC to exchange at least 15% of the exchangeable sites with the heat transfer fluid component. Preferred Components: The ion exchange resin comprises at least 50% (preferably at least 75%) of exchangeable groups comprising a treatment corrosion inhibitor, based on the total number of exchangeable groups.