LaMotte AM-21 Water Pollution Detection Outfit - Manual (Page 29)

Overhead Projection Demonstration
Quantity Contents Code
30 mL *Cyanide Reagent #1 *7388-G
30 mL *Cyanide Reagent #2 *7389-G
30 mL *Cyanide Reagent #3 *7390-G
2 Test Tubes, “A & B” 0804
1 Funnel, plastic 0459
1 Filter Paper, 9 cm 0465
1 Funnel Holder 0694
1 Demonstration Stage, three cell 1039
1 Spatula 0691
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.
Procedure
1. Fill a test tube (0804) to the upper line marked “A” with the sample
water.
2. Add two drops of *Cyanide Reagent #1 (7388) and mix; then add 2
drops of *Cyanide Reagent #2 (7389) and mix.
3. Place the demonstration stage (1039) on the overhead projector and
turn on the projector light.
4. Place the Funnel (0459) in the Funnel Holder (0694) and place the
funnel holder inside one of the cells of the stage. Insert a piece of Filter
Paper (0465) in the funnel. The contents of the test tube from Step 2 are
filtered directly into the cell of the demonstration stage. It is not
necessary to collect the last few drops that may remain on the filter
paper. A pink color in the filtrate indicates the presence of Cyanide.
Mark this as the “Test Sample.”
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