_________________________________________________________________ | | The temperature sinks Substances to be mixed in parts by |------------------------- weight. | from | to _______________________________________|____________|____________ | | 1. Water. 1 | +10 deg. C. | -15.5 deg. C. Ammonium nitrate. 1 | | 2. Dil. hydrochloric acid. 10 | +10 | -17.8 Sodium sulphate. 16 | | 3. Dil. hydrochloric acid. 1 | +10 | -16 Sodium sulphate. 11/2 | | 4. Snow. 1 | + 0 | -32.5 Sulphuric acid. 4 | | Water. 1 | | 5. Snow. 1 | - 7 | -51 Dil. sulphuric acid. 1 | | 6. Snow. 1 | -23 | -49 Dil. nitric acid. 1/2 | | 7. Snow. 1 | 0 | -17.8 Sodium chloride. 1 | | 8. Snow. 1 | 0 | -49 Calcium chloride. 1.3 | | 9. Snow. 1 | 0 | -33 Hydrochloric acid. 0.625 | | 10. Snow. 1 | 0 | -24 Sodium chloride. 0.4 | | Ammon. chloride. 0.2 | | 11. Snow. 1 | 0 | -31 Sodium chloride. 0.416 | | Ammon. nitrate. 0.416 | | _______________________________________|____________|____________ * * * * * THE APPLICATION OF ELECTROLYSIS TO QUALITATIVE ANALYSIS. By CHARLES A. KOHN, B.Sc., Ph.D., Assistant Lecturer in Chemistry, University College, Liverpool.