- Weigh about 2 grams of a representative sample into a tared Erlenmeyer flask. Record weight on flask to 2 decimal places. Add 20 mL 2 M KCl. Shake for 30 min.
- Filter sample into digestion tube. Transfer weight to tube. Enter weight into distillation unit. Distill Sample. Titrate with H2SO4 solution using the boric acid indicator. Record value to 2 decimal places.
- To make 2 M KCl, weigh 298.24 g KCl into a 2 L volumetric flask. Dilute to volume with deionized H2O.
- Report 2 decimal places for solids.