Answer

Regenesis has had previous experience with potassium bromide, KBr, as a tracer. In lab experiments, no adverse effects are observed with the addition of 100-1,000 mg/L of KBr nor fluorescein dye with 3D Microemulsion. Rhodamine WT, also a common fluorescent dye, has a similar chemical structure to fluorescein and should behave the same in solution with 3-D Microemulsion.