LaMotte IRON, ALUMINUM, SULFATE MODULE D User Manual

HY DROX IDE, PHENOLPHTHALEIN

& TO TAL AL KA LIN ITY TEST KIT

MODEL WAT -MPH-DR · CODE 7341-DR

QUANTITY CONTENTS CODE

100 BCG-MR Indicator Tablets T-2311-J
100 Phenolphthalein Tablets T-2246-J
30 mL *Barium Chloride Solution, 10% *6117-G
2 x 60 mL *Alkalinity Titration Reagent *6102DR-H
1 Test Tube, 5-10-15 mL, glass, w/cap 0778
1 Direct Reading Titrator, 0-200 Range 0382

*WARNING: Reagents marked with a * are considered hazardous
substances. Material Safety Data Sheets (MSDS) are supplied for these
reagents. For your safety read label and accompanying MSDS before using.

To order individual reagents or test kit components, use the specified code
number.

Carefully read the LaMotte Direct Reading Titrator Instruction Manual
before performing the titrations. The Titrator is calibrated to read the
Alkalinity test result directly in parts per million (ppm) Calcium
Carbonate (CaCO3). Each minor division on the scale equals 4 ppm.

HY DROX IDE AL KA LIN ITY PRO CE DURE

This test measures the Hydroxide Alkalinity (Hydrate) of water by
titration of the hydroxyl content following the elimination of any
Carbonate Alkalinity interference by precipitation as BaCO3.

1. Fill the test tube (0778) to the 5 mL line with sample water.

2. Add 10 drops of *Barium Chloride Solution, 10% (6117). If

carbonates are present a white precipitate will form.

3. Add one Phenolphthalein Tablet (T-2246). Cap and mix until
tablet disintegrates. If no red color develops, the Hydroxide
Alkalinity is zero. If the sample turns red proceed to Step 4.

4. Fill the Direct Reading Titrator (0382) with the *Alkalinity
Titration Reagent (6102DR). Insert the Titrator tip in the center
hole of the test tube cap. While gently swirling the tube, slowly
press the plunger to titrate the sample until the red or pink color
disappears.

5. Read the Hydroxide Alkalinity directly from the Titrator scale in
ppm CaCO3.