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Nitrite

Nitrites are readily oxidised in the environment and natural waters to nitrates and are therefore only found naturally in reduced oxygen environments, often as a result of the action of bacterial reduction of nitrate. Nitrites are extremely toxic to fish and aquatic organisms.

Nitrite in water, often in the form of Sodium Nitrite, is used at concentrations in excess of 200 ppm as an anodic corrosion inhibitor in closed recirculating water systems . Its ability to "scavenge" free oxygen reduces the possibility of pipework and heat exchanger corrosion occuring.

Kittiwakes titrator , photometer, comparator are designed to determine concentrations of nitrites in water in closed systems and are not affected by the presence of antifreeze additives such as monopropylene and monoethylene glycol . Simple and economical nitrite tests can also be performed with the Kittiwake drop test or test strips .

The table below gives a chart of recommended tests.
R = Recommended X = Suitable for use

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Nitrite
Test Strips
Photometer
Comparator
Titrator Test
Drop Test
Cooling Towers & Systems X
R
R
R
Potable Water X
R
Agriculture & Hydroponics X
R
Water Purification & Softening
R
Aquaculture
R
 X

Product Table
Code
Product
Range
Tests per pack
Number of Reagents
AS-K22343-KW Nitrite drop test 10-2000 ppm NaNO2 120 2 x 65 ml
AS-K26069-KW Nitrite DIGI Titrator 20-2000 ppm (NaNO2) 100 2 x 65 ml, 1 x cartridge
AS-K22223-KW Nitrite Smart II Photometer 0-2.5 NaNO2 1 unit 1 x 65ml, 1 x pot
FG-K28217-KW Nitrite ECON Comparator 0-1.00/0-0.33 ppm NaNO2 50 1 x 65ml, 1 x pot
BI-K21306 Nitrite (NO2 -) Test Strips 0-50 ppm NO2 100 1 pack
BI-K21305 Nitrate (NO3 -) / Nitrite (NO2 -) Test Strips 0-500 ppm NO3 / 0-50 ppm NO2 100 1 pack