Taylor K-1537

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DROP TEST > HYDROXYL ALKALINITY (1 drop = 10 or 50 ppm)

COMPONENTS: 1 x 5086 Instruction 1 x 9011 Pipet, Calibrated 0.5 & 1.0 mL, plastic w/green cap 1 x 9198G Sample Tube, Graduated, 25 mL, plastic w/cap and green dot 1 x R-0638G-C Phenolphthalein Indicator (green cap), 2 oz, DB 1 x R-0711-C Barium Chloride Solution 20%, 2 oz 1 x R-0724-C Hydrochloric Acid .12N, 2 oz, DB 1 x R-0735G-C Hydrochloric Acid .6N (green cap), 2 oz, DB.

For 1 drop = 10 ppm CaCO3

1. Rinse and fill 25 mL sample tube (#9198G) to 25 mL mark with water to be tested.
2. Using a 1.0 mL pipet (#9011), add 1 dropperful (as much as can be drawn up by means of bulb) R-0711 Barium Chloride Solution 20%. Swirl to mix.
3. Add 2 drops R-0638G Phenolphthalein Indicator. Swirl to mix. Sample will turn red if hydroxyl alkalinity is present.
4. Add R-0724 Hydrochloric Acid .12N dropwise, swirling and counting after each drop, until color changes from red to colorless. Always hold bottle in vertical position.

NOTE: Disregard any reappearance of the red color.

5. Multiply drops of R-0724 Hydrochloric Acid .12N by 10. Record as parts per million (ppm) hydroxyl alkalinity as calcium carbonate.

For 1 drop = 50 ppm CaCO3

1. Rinse and fill 25 mL sample tube (#9198G) to 25 mL mark with water to be tested.
2. Using a 1.0 mL pipet (#9011), add 1 dropperful (as much as can be drawn up by means of bulb) R-0711 Barium Chloride Solution 20%. Swirl to mix.
3. Add 2 drops R-0638G Phenolphthalein Indicator. Swirl to mix. Sample will turn red if hydroxyl alkalinity is present.
4. Add R-0735G Hydrochloric Acid .6N dropwise, swirling and counting after each drop, until color changes from red to colorless. Always hold bottle in vertical position.

NOTE: Disregard any reappearance of the red color.

5. Multiply drops of R-0735G Hydrochloric Acid .6N by 50. Record as parts per million (ppm) hydroxyl alkalinity as calcium carbonate.