LaMotte WAT-MPH-DR User Manual
HY DROX IDE, PHENOLPHTHALEIN
L
Mott
& TO TAL AL KA LIN ITY
DROP COUNT METHOD
MODEL MPH-DC • CODE 7515
QUANTITY CONTENTS CODE
100 Phenolphthalein Tablets T-2246-J
100 BCG-MR Indicator Tablets T-2311-J
30 mL *Barium Chloride Solution, 10% *6117-G
2 x 60 mL *Alkalinity Titration Reagent *6102PS-H
1 Test Tube, 5-10-15 mL, glass, w/cap 0778
1 Pipet, plain, plastic 0352
1 Acid Demand Index 1546
*WARNING: Reagents marked with a * are considered to be potential health
hazards. To view or print a Material Safety Data Sheet (MSDS) for these reagents
see MSDS CD or www.lamotte.com. To obtain a printed copy, contact LaMotte by
email, phone or fax.
To order individual reagents or test kit components, use the specified code
number.
HY DROX IDE AL KA LIN ITY
1. Fill test tube (0778) to 5 mL line with sample water.
2. Add 10 drops of *Barium Chloride Solution, 10% (6117). A white
precipitate will form if carbonates are present.
3. Add one Phenolphthalein Tablet (T-2246). Cap and mix until tablet
disintegrates. If solution does not turn red, the Hydroxide Alkalinity
is zero. If solution turns red, proceed to Step 4.
4. Fill the pipet (0352) with *Alkalinity Titration Reagent (6102PS).
Hold pipet vertically. While gently swirling tube, add *Alkalinity
Titration Reagent, one drop at a time, until color changes from red to
colorless. Count the number of drops added.
5. Multiply number of drops added in Step 4 by 10. Record as ppm
Hydroxide Alkalinity as CaCO3.
Number of Drops of Titration Reagent x 10 =
ppm Hydroxide Alkalinity expressed as
ppm Calcium Carbonate (CaCO3)
Loading...