The following mixture of dry salts may be kept for the immediate production of a good imitation of sea water:—Chloride of sodium (that obtained from evaporating sea water, and not recrystallised, in preference), 85 oz.; effloresced sulphate of soda, 15 oz.; dry
chloride of calcium, 4 oz.; dry chloride of magnesium, 16 oz.; iodide of potassium, 2 dr.; bromide of potassium, 1 gr. Mix, and keep dry. Put 4 or 5 oz. to a gallon of water.
Balaruc Water. Chloride of sodium, 1 oz.; chloride of calcium, 1 oz.; chloride of magnesium, 1⁄2 oz.; sulphate of soda, 3 dr.; bicarbonate of soda, 2 dr.; bromide of potassium, 1 gr.; water, a gallon. Chiefly used for baths.
Sulphuretted Waters.
Simple Sulphuretted Waters. Pass sulphuretted hydrogen into cold water (previously deprived of air by boiling, and cooled in a closed vessel) till it ceases to be absorbed.
Aix-la-Chapelle Water. Bicarbonate of soda, 12 gr.; chloride of sodium, 25 gr.; chloride of calcium, 3 gr.; sulphate of soda, 8 gr.; simple sulphuretted water, 21⁄2 oz.; water, slightly carbonated, 171⁄2 oz.
Barèges Water. (Cauterets, Bagnères de Luchon, Eaux Bonnes, St Sauveur, may be made the same.) Crystallised hydrosulphate of soda, crystallised carbonate of soda, and chloride of sodium, of each 11⁄2 gr.; water (freed from air), a pint. A stronger solution for adding to baths is thus made:—Crystallised hydrosulphate of soda, crystallised carbonate of soda, and chloride of sodium, of each 2 oz.; water, 10 oz.; dissolve. To be added to a common bath at the time of using.
Naples Water. Crystallised carbonate of soda, 15 gr.; fluid magnesia, 1 oz.; simple sulphuretted water, 2 oz.; aerated water, 16 oz. Introduce the sulphuretted water into the bottle last.
Harrogate Water. Chloride of sodium, 100 gr.; chloride of calcium, 10 gr.; chloride of magnesium, 6 gr.; bicarbonate of soda, 2 gr.; water, 181⁄2 oz. Dissolve, and add simple sulphuretted water, 11⁄2 oz.
Chalybeate Waters.