Phosphate Information



Other Names

Phosphate ion

Chemical Formula


CAS Number

14265 – 44 – 2

Industry Uses

Chemical Laboratories; Agriculture; Fertilizers

Health Risks


What is Phosphate?

Phosphorous occurs naturally in rock formations in the earth's crust, usually as phosphate. High phosphate concentrations in surface waters can indicate fertilizer runoff, domestic waste discharge, or the presence of industrial effluents or detergents. Usually phosphates from these sources are poly-phosphates or organically bound, they will all degrade to reactive phosphates.

Phosphate Exposure and Health Risks

Phosphate does not have any notable health risks to humans, but excess levels of phosphate and phosphorous are known to have a negative impact on ecosystems by damaging the health of rivers and lakes, which is known as eutrophication.


There are no listed restrictions or regulations on the concentration of phosphate in water. 

Measuring Phosphate

Dissolved Phosphate concentration in water can be measured in units of parts per million (ppm). Phosphate measurement is used to control scale and corrosion inhibitor levels in boilers and cooling towers. We carry instrumental kits from CHEMetrics that determine phosphate levels in water. All of our Phosphate products can be viewed HERE.

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