Carriers have been used for decades to solubilize compounds that are either insoluble or require more stability once solubilized. An example of a stability carrier is the EDTA chelate. Copper sulfate is water soluble on its own but considered unstable because it will drift downward in water and pile up at the bottom of a tank, lakebed, or jug. But when the EDTA compound is added to the copper solution, the EDTA will bond to the copper molecule and hold it in suspension within the water for greater stability in applications such as algae control in lakes and ponds, or as a plant nutrient in soils. However, the EDTA bonding makes the copper sulfate molecule larger, heavier, and less effective due to tying up the molecule’s electrons. This “tie-up” reduces the overall performance of the copper sulfate until the EDTA releases it which takes time. Additionally, many of these carriers may be toxic or take decades to break down in the soil.