Water, Nitrate-free
To 100 mL of water add a few milligrams of potassium permanganate and of barium hydroxide. Distil using the apparatus described in Appendix V C. Reject the first 10 mL and collect the following 50 mL.
To 100 mL of water add a few milligrams of potassium permanganate and of barium hydroxide. Distil using the apparatus described in Appendix V C. Reject the first 10 mL and collect the following 50 mL.