Throughout this book, the reagents referred to, unless otherwise
stated, have been prepared
ACETIC ACID, DILUTE. Approx.
Dilute 230 mi. of glacial acetic
acid with water until total volume is i litre.
HYDROCHLORIC ACID, DILUTE, i vol. of cone. HCl to 3 vols. of water.
NITRIC ACID, DILUTE, i vol. of cone. HNO
to io vols. of water.
SULPHURIC ACID, DILUTE, i vol. of cone. H
to 8 vols. of water.
SULPHUROUS ACID. Water saturated with SO
AMMONIUM HYDROXIDE SOLUTION, DILUTE, i vol. of cone, ammonia
(J, o-88o) to 3 vols. of water.
POTASSIUM HYDROXIDE, ALCOHOLIC. Boil under reflux a mixture of io g.
of powdered KOH and ioo ml. of rectified spirit for 30 minutes.
Cool and if solid material remains, decant through a filter of glass-
SODIUM HYDROXIDE, io% AQUEOUS, ioo g. NaOH dissolved in
water, and the cold solution diluted to i litre.
SODIUM HYDROXIDE, 30% AQUEOUS. As above, using 300 g. NaOH.
ioo g. of BaCl