Mixing Baking Soda into a tank of water will work for neutralization. Its typically something I will do with cast aluminum materials as their pore structure lends to trapping of the electrolyte to the point of being a PITA.
Hot water rinses IMO are superior to room temp, cold water rinse solutions, especially if prepping for dying of the finish. The hot water will help the acid to drain off, and it opens the pores of the material to more readily accept the dye in the next step.
So, maybe a hot baking soda solution would do the trick all around
