LaMotte CAUSTIC TEST KIT 7181 - Manual

CAUS TIC TEST KIT
CODE 7181
QUANTITY CONTENTS CODE
30 mL *Hydrochloric Acid, 3.6N *5649WT-G
15 mL *Phenolphthalein Indicator, 0.5% *2258-E
30 mL *Barium Chloride Solution, 10% *6117-G
1 Pipet, 0.5 mL, plastic 0353
1 Test Tube, 5-10-15-20-25 mL, plastic, w/cap 0715
*WARNING: Reagents marked with an * are considered to be potential health
hazards. To view or print a Material Safety Data Sheet (MSDS) for these reagents go to
www.lamotte.com. To obtain a printed copy, contact LaMotte by e-mail, phone or fax.
To order individual reagents or test kit components, use the specified code number.
NOTE: The procedures below eliminate non-hydroxyl alkalinity
contributors. If a total alkalinity determination is preferred, skip the
addition of *Barium Chloride Solution 10% (6117) in Step 2 or Step 3.
Record the result as total alkalinity as NaOH.
PRO CE DURE
1 DROP = 0.1%
1.
Fill test tube (0715) to 5 mL line with sample.
2. Add 10 drops of *Barium Chloride Solution, 10% (6117). Swirl to
mix. A white precipitate will form if carbonates are present.
3. Add 1 drop of *Phenolphthalein Indicator, 0.5% (2258). Swirl to
mix. Solution will turn pink.
4. While gently swirling tube, add *Hydrochloric Acid, 3.6N
(5649WT) one drop at a time until pink color disappears. Count the
number of drops added. Hold dropper bottle vertically.
5. Multiply the number of drops used in Step 4 by 0.1. Record as
Percent Caustic as NaOH.