8. (For silver.) From fine brass, 6 parts; silver, 5 parts; zinc, 2 parts.
9. (For tin plate.) From tin, 2 parts; lead, 1 part. The addition of bismuth, 1 part, renders it fit for pewter.
SOLE. The Solea vulgaris, a well-known fish. It is perhaps more frequently eaten than any other flat fish, and, when skilfully cooked, exceeds them all in delicacy, nutritiousness, and flavour.
SOLU′TION. Syn. Solutio, L. Under the head of solutions (SOLUTIONES), in pharmacy, are properly included only those liquids which consist of water, or an aqueous menstruum, in which has been dissolved an appropriate quantity of any soluble substance to impart to the liquor its peculiar properties. When spirit is the menstruum, the liquid receives the name of alcoholic solution, spirit, or tincture. In the B. P. and the Ph. L. & D. aqueous solutions are named LIQUORS (LIQUORES), whilst in the Ph. E., and in the old pharmacopœias generally, they are termed WATERS (AQUÆ).
The following list embraces all the solutions of the British pharmacopœias, with a few others likely to be useful to the reader. Some other preparations to which the name has been given will be found under Liquors, Tinctures, &c.
Solution of Ac′etate of Ammo′′nia. Syn. Liquor of acetate of ammonia, Water of a. of a., Mindererus’ spirit; Ammoniæ acetatis liquor (B. P.), Liquor ammoniæ acetatis (Ph. L. & D.), Ammoniæ acetatis aqua (Ph. E.), L. Prep. 1. (Ph. L.) From dilute acetic acid, 1 pint; exactly neutralised by sesquicarbonate of ammonia (in coarse powder), 9 dr., or q. s. Sp. gr. 1·022.
2. (Ph. E.) Distilled vinegar (preferably from French vinegar), sp. gr, 1·005, 24 fl. oz.; carbonate (sesquicarbonate) of ammonia, 1 oz., or q. s. Sp. gr. 1·011.
3. (Ph. D.) Sesquicarbonate of ammonia, 21⁄2 oz.; dilute acetic acid, 3 pints. Sp. gr. 1·012.
4. (B. P.) Carbonate of ammonia, 31⁄4, or sufficient; acetic acid (28 per cent.), 10; distilled water, 50. Dissolve the carbonate in the acid, and add the water.
Prop., &c. Free from colour and odour. It changes the colour neither of litmus nor turmeric. Sulphuretted hydrogen being dropped in, it is not discoloured, neither is anything thrown down on the addition of chloride of barium. What is precipitated by nitrate of silver is soluble in water, but especially so in nitric acid. Potassa being added, it emits ammonia; and sulphuric acid being added, it gives off acetic vapours. The fluid being evaporated, what remains is completely destroyed by heat.