Phosphates In Water Pollution
Phosphates may be created by substituting some or all of the
hydrogen of a phosphoric acid by metals. Depending on the number of
hydrogen atoms that are replaced, the resulting compound is described as
a primary, secondary or tertiary phosphate. Primary and secondary
phosphates contain hydrogen and are acid salts. Secondary and tertiary
phosphates, with the exception of those of sodium, potassium and
ammonium are insoluble in water. Tertiary sodium phosphate is valuable
as a detergent and water softener. The primary phosphates tend to be
more soluble.
Phosphates, which are an important component to metabolism in
both plants and animals, help in the first step in oxidation of glucose
in the body. Primary calcium phosphate is an ingredient of plant
fertilizer.
Phosphates have caused increasing attention recently. The focus
is on the environmentally harmful effects in household detergents.
Wastewater, from laundering agents, contains phosphates, which......
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