CHLORHYDRIC ACID.

Preparation and tests.—Bromhydric, iodhiydric, and fluorhydric acids.—Etching glass

CHAPTER XVIII.
NITRIC ACID.

Preparation, properties, tests, and uses.—Aqua regia: preparation and action

CHAPTER XIX.
SULPHURIC ACID.

Preparation, tests, manufacture, and importance.-Fuming sulphuric acid

CHAPTER XX.
AMMONIUM HYDRATE.