ANALYSIS OF CHLORIDE IN CLEAN WATER AND DRINKING WATER

ANALYSIS OF CHLORIDE IN CLEAN WATER AND DRINKING WATER

Tools	Materials
1.      Stir bar                                    Burette Funnel Filler Erlenmeyer Klem and statif burette Volumetric pipette Drop pipette Analytical balance Spray bottle Volumetric flask	•      Silver nitrate 0,01 N •      Natrium Chloride 0,01 N •      Potassium Chromate 5% •      Aquadest •      Clean water and drinking water (sample)

Reagent for Analysis Chloride

1.    AgNO₃ 0,01 N Solution

a.         Weight as much as 1,69-1,70 grams of AgNO₃

b.        Dissolve in 1000 mL aquadest, stir and input to reagent bottle.

2.      K₂CrO₄ 5% indicator

a.         Weight 5,00 grams of K₂CrO₄ pro analysis

b.          Dissolve in 100 mL aquadest.

3.      NaCl 0,01 N Solution

a.       Weight 0,1750 grams of NaCl pro analysis.        

b.      Dissolve in 300 mL aquadest in beaker glass.     

Standaritation AgNO₃ 0,01 N

1.    10 ml NaCl pipette into the erlenmeyer

2.    Add 3 drops of chromate indicator

3.    Titration with AgNO₃ until reddish brown colour in solution

Determination Chloride in water

1.    25 mL sample pipette into the erlenmeyer

2.    . Add 3 drops of chromate indicator

3.    Titration with AgNO₃ until reddish brown colour in solution

CREATED BY AURA & ELFIRA

XII A6