Taylor K-1539

Drop Test, Nitrite (Sodium Nitrite), Permanganate (using Hâ‚‚SOâ‚„), 1 drop = 100 ppm

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DROP TEST SODIUM NITRITE (1 drop = 100 ppm)

COMPONENTS: 1 x 5024 Instruction 1 x 9010 Pipet, Calibrated 0.5 & 1.0 mL, plastic w/red cap 1 x 9198R Sample Tube, Graduated, 25 mL, plastic w/cap and red dot 1 x R-0729-C-DB Sulfuric Acid 50%*, 2 oz, DB 1 x R-0730-C Permanganate Reagent, 2 oz.

1. Rinse and fill 25 mL sample tube (#9198R) to 25 mL mark with water to be tested.
2. Add 25 drops R-0729 Sulfuric Acid 50%*. Swirl to mix. CAUTION: R-0729 Sulfuric Acid 50% is a corrosive acid. Handle carefully.
3. Using a 1.0 mL pipet (#9010), add R-0730 Permanganate Reagent dropwise, swirling and counting after each drop, until color changes from colorless to a faint but permanent pink, which persists for at least 1 minute. Always hold pipet in vertical position.
4. Multiply drops of R-0730 Permanganate Reagent by 100. Record as parts per million (ppm) sodium nitrite.

NOTE: For results as nitrite, multiply sodium nitrite concentration by 0.67.

*WARNING: Sulfuric Acid 50% (R-0729) contains 62% sulfuric acid (w/w), a corrosive acid.