Hach DR/700 Procedures Manual page 345

ALUMINUM,
SUMMARY OF METHOD
Eriochrome Cyanine R combines with aluminum in a sample to produce
an orange-red color. The intensity of color is proportional to the
aluminum concentration.
REQUIRED REAGENTS
Description
ECR Reagent Powder . . . . . . . . . . . 1 pillow . . . 25/pkg. . . . . 23802-68
Hexamethylenetetramine
Buffer Reagent . . . . . . . . . . . . . 1 pillow . . . 25/pkg. . . . . . 1878-68
ECR Masking Reagent Solution . . . 2 drops. . . . 29 mL . . . . . 23801-23
REQUIRED APPARATUS
Clippers for opening
powder pillows . . . . . . . . . . . . . . 1. . . . . . . . . each . . . . . . . . 968-00
Cylinder, 50 mL,
mixing graduated . . . . . . . . . . . . 1. . . . . . . . . each . . . . . . . 1896-41
DR/700 Filter
Module Number 52.01 . . . . . . . . 1. . . . . . . . . each . . . . . . 46252-00
OPTIONAL REAGENTS
Aluminum Standard Solution, 100 mg/L . . . . . . 100 mL . . . . 14174-42
Aluminum Standard Solution, Voluette
ampule, 50 mg/L as Al, 10 mL. . . . . . . . . . . . 16/pkg. . . . . 14792-10
Bromphenol Blue Indicator Solution . . . . . . . . . 100 mL . . . . 14552-32
Hydrochloric Acid Solution, 6 N (1:1) . . . . . . . . 500 mL . . . . . . 884-49
Nitric Acid, ACS . . . . . . . . . . . . . . . . . . . . . . . . . 500 mL . . . . . . 152-49
Nitric Acid Solution, 1:1 . . . . . . . . . . . . . . . . . . . 500 mL . . . . . 2540-49
Potassium Hydroxide Solution, 1 N . . . . . . . . . . 59 mL . . . . . 23144-26
Potassium Hydroxide Standard
Solution, 12.0 N . . . . . . . . . . . . . . . . . . . . . . . 100 mL . . . . . . 230-32
Potassium Hydroxide Standard
Solution, 12.0 N . . . . . . . . . . . . . . . . . . . . . . . 500 mL . . . . . . 230-49
Sulfuric Acid Standard Solution, 5.25 N . . . . . . 100 mL . . . . . 2449-32
Water, demineralized . . . . . . . . . . . . . . . . . . . . . . 4 L . . . . . . . . . 272-56
continued
Quantity
Per Test
52-19
Unit Cat. No.