Products List - Phosphonates Aquapharm manufactures a wide range of Organophosphates, under the Aquacid name. Each of Aquacid phosphonates has unique properties and these, when used alone or in combinations offer solutions to many water related problems in various industries. Aquacid phosphates exhibit multifunctional properties like sequestration, threshold inhibition of metal ions and deflocculation. In conjunction with their excellent hydrolytic stability these properties make phosphonates superior to other sequestering agents in cost effectiveness and performance.