The extraction method is the potassium chloride method. The acidic cations are firstly leached from the soil and then titrated with a standard alkali. The reaction endpoint is visually indicated by a color change (from colorless to pink) of the indicator reagent.

Order Information:

HI 38084 test kit comes with 380 g potassium chloride, 20 mL phenolphthalein indicator, 120 mL titrant solution, 12 L demineralized water bottle with filter cap, 1 mm soil sieve, large funnel, 100 paper filter discs, 50 mL plastic test tube with screw cap, 50 mL calibrated plastic vessel, 2 g sample cups (2), 1 g sample cup, plastic pipette, brush and spoon

Specifications
Method           Titration
Range           0.0-2.5 meq/100 g
Smallest Increment           0.1 meq/100 g
Chemical Method           Potassium Chloride
Number of Tests           100
Weight           1027 g