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PHYSICAL CHEMICAL PARAMETER (Cont)

Temperature: Measurement is relevant

For Aquatic life

Control of waste treatment plants

Cooling purposes for industries

Calculation of solubility of dissolved gases

Identification of water source

Agriculture Irrigation

Domestic uses (Drinking, bathing)

 Instrument of measurement is thermometer

pH: Controlled by CO2/HCO3-/CO32- Equilibria in natural water. Its values lie between 4.5 and 8.5. It is important

    Chemical and biological properties of liquid

    Analytical work

       Measurement is done in the field. Most common method of determination is the electrometric method, involving a pH-meter. It is important to calibrate the meter with standard pH buffer solutions

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