Sodium Dihydrogen Orthophosphate is a clear, colourless, slightly acid liquid which is soluble in water at all concentrations.
The main use of Sodium Dihydrogen Orthophosphate is in water treatment, where it is used for prevention of plumbosolvency. The addition of phosphate at the water treatment works creates a lead-phosphate coating on the inside of lead pipes – this acts as a protective coating and prevents lead from leaching into the water supply.
ICL manufacture SDHO at our site in Widnes, Cheshire.
We have significant storage at our production site in Widnes, with additional storage at other UK sites.