CHEMetrics K-7006 Nitrite CHEMets Kit

Kit comes in a plastic case and contains everything needed to perform 30 tests: Refill, Low and High Range Comparators, Acidifier Solution, 25 mL sample cup, and instructions.

Applications and Industries

Industrial wastewater influent and effluent, industrial process waters, boiler water, cooling water, surface and ground water.

References

APHA Standard Methods 23rd ed., Method 4500-NO2-B - 2000 USEPA Methods for Chemical Analysis of Water and Wastes, Method 354.1 (1983).

Chemistry

In an acidic solution, nitrite diazotizes sulfanilic acid (a primary aromatic amine), then couples with N-(1-naphthyl) ethylenediamine dihydrochloride (NED) to produce an intense reddish-purple colored dye. The resulting color intensity is proportional to the nitrite concentration in the sample. Results are expressed as ppm (mg/L) nitrite-nitrogen (NO2-N). To convert results to ppm NO2, multiply by 3.3.

Storage Requirements

Products should be stored in the dark and at room temperature.

Kit includes:

• Refill
• Low and High Range Comparators
• Acidifier Solution
• 25 mL sample cup
• Instructions