| present if the acid | a blue color with starch, paste,
| be prepared from | or mucilage.
| sodium nitrate |
| |
Hydrochloric | Free chlorine | Liberates iodine from solution
acid, HCl | | of potassium iodide. See also
Molec. Wt. 36.5 | | "Chlorides," nitric acid.
| |
| Sulphuric acid | As above for nitric acid.
| |
| Perchloride of iron | Yellow color. Brown precipitate
| | with ammonia added till it
| | smells slightly.
| |
Sulphuric acid, | Bisulphate of | Residue on evaporation.
H_{2}SO_{4} | potassium |
Molec. Wt. 98 | |
| Sulphate of lead | Milkiness on dilution. May be
| | completely freed from lead by
| | diluting with three or four times
| | as much water, and allowing
| | to settle.
| |
Acetic acid | Water | Does not solidify when cooled
(glacial), | | to 17° C. (53º F.)
H C_{2}H_{3}O_{2} | |
Molec. Wt. 60 | Sulphurous and | White precipitates with silver
| hydrochloric | nitrate.
| acids |
| |