| |
| Potassium iodate | A pretty strong solution becomes
| | yellow from liberation of iodine
| | on addition of dilute sulphuric
| | acid or, better, a strong solution
| | of citric acid.
| |
Potassium | Similar to | See potassium iodide.
bromide, KBr | potassium iodide |
Molec. Wt. 119 | |
| |
Sodium carbonate, | Chlorides and | Same as for ammonia.
Na_{2}CO_{3} | sulphates |
Molec. Wt. 106 | |
| |
Sodium chloride, | Chloride of calcium | Oxalate of ammonium (after
NaCl | Chloride of | addition of a little acetic acid)
Molec. Wt. 58.5 | magnesium | gives a milkiness, or precipitate,
| | indicating calcium; filter this
| | out and add ammonia, chloride of
| | ammonium, and phosphate of sodium
| | (clear solutions). A precipitate
| | indicates magnesium. Both the above
| | cause dampness in wet weather.
| |
| Sodium sulphate | As for "sulphates" in ammonia.
| |
Potassium | Potassium carbonate | Effervescence with dilute acids,
cyanide, KCN | nearly always | giving off a gas carbonic
Molec. Wt. 65, | present | anhydride, which renders