LaMotte 6798 User Manual

AL KALI TEST KIT

Mott

CODE 6798

QUANTITY CONTENTS CODE

15 mL *Phenolphthalein Indicator, 1% *2246-E 15 mL Total Alkalinity Indicator 2786-E 30 mL *B-K Alkali Solution A *8362PS-G 30 mL *B-K Alkali Solution B *8363PS-G 1 Test Tube, 2.5-5-10-15-20 mL,

glass, w/cap

2 Pipets, plain, plastic 0352

*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 numbers.

0970-S

PRO CE DURES

STRONG AL KALI SO LU TION

1. Fill test tube (0970-S) to 5 mL line with strong alkali solution.

2. Add 3 drops of *Phenolphthalein Indicator, 1% (2246). Cap and

mix. Solution will turn red.

3. Fill pipet (0352) with *B-K Alkali Solution A (8362PS). While gently swirling tube, add *B-K Alkali Solution A one drop at a time until color changes from red to colorless. Count number of drops added. Hold pipet vertically.

4. Add 3 drops of Total Alkalkalinity Indicator (2786). Cap and mix. If solution turns red, no inactive alkalis are present. If solution turns blue, proceed to Step 5.

5. Continue adding *B-K Alkali Solution A (8362PS) one drop at a time until color changes from blue to pinkish red. Count number of drops added. Hold pipet vertically.

CAL CU LA TIONS

ACTIVE ALKALINITY: Multiply number of drops used in Step 3 by

0.1. Record as % Active Alkalinity.

Number of drops used in Step 3 x 0.1 = % Active Alkalinity

INACTIVE ALKALINITY: Multiply number of drops used in Step 5

by 0.1. Record as % Inactive Alkalinity.

Number of drops used in Step 5 x 0.1 = % Inactive Alkalinity

TOTAL ALKALINITY: Add the active alkalinity to the inactive

alkalinity. Record as % Total Alkalinity.

% Active Alkalinity + % Inactive Alkalinity = % Total Alkalinity

CAUSTIC CONTENT: Subtract the inactive alkalinity from the

active alkalinity. Record as % Caustic Content.

% Active Alkalinity - % Inactive Alkalinity = % Caustic Content

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