Eau de Vienne. A hair dye from Paris. Two fluids, one of which is a solution of nitrate of silver in ammoniacal water, and the other a solution of pyrogallic acid.
Eau Dentifrice de Mallard. Star anise, common anise, cinnamon, cloves, of each, 8 parts; guaicum wood, 10 parts; brown cinchona, 6 parts; rose leaves, 5 parts; nutmegs, 2 parts, are placed in a displacement apparatus and percolated with 3 parts cochineal; 12-15 parts water, 1000 parts sp. vini; sp. gr. ·860. The tincture is displaced with water and 1000 parts are mixed with 7 parts of a mixture of peppermint oil, spirit of scurvy grass, and tinct. of benzoin, allowed to stand and filtered.
Eau Dentifrice des Cordillères. An Indian recipe. 360 parts strong spirits, 330 parts water, 21⁄2 parts extract of red or yellow cinchona, 1 part oil of cinnamon, 2 parts oil of cloves, 3 parts oil of anise, 5 parts oil of peppermint. (Hager.)
Eau Ecarlate—Scarlet Water. (Bürdel). For renovating red linen and woollen fabrics. Oxalium, 25 parts; soda, 16 parts; potash, 5 parts; water, coloured with cochineal and slightly perfumed, 1000 parts. (Sauerwein.)
Eau Lajeune. A hair dye. An elegant pasteboard box, in which are three bottles of fluid and two bone-handled tooth-brushes. No. 1 contains a clear fluid consisting of pyrogallic acid 1·5 gramme, ·3 gramme colouring matter of alkanet, 17·5 grammes spirit of wine, 27 grammes water. No. 2 is filled with a thick brown fluid, which from decomposition has produced a deposit sometimes brown, sometimes grey. This partly-decomposed fluid was originally a mixture of silver nitrate, 3·5 grammes; ammonia, 4·5 grammes; gum arabic or some similar mucilage, 2·5 grammes; distilled water, 23 grammes. No. 3, labelled “Fixateur,” contains 7·5 grammes fluid, consisting of ·5 gramme sodium sulphide, 7 grammes distilled water. The directions for use, translated into various languages, say—Dissolve 10 grammes subcarbonate of soda in half a litre of warm or cold rain water, and with this wash the grease from the hair. Afterwards rinse it in clear water, and dry it thoroughly with a cloth. Pour one part of fluid No. 1 into a saucer, and with brush No. 1 apply it to the roots of the hair. Allow it two or three minutes to dry, then rub the hair with an old linen cloth to remove the superfluous moisture. Next repeat the operation, using fluid and brush No. 2, and without waiting wash the hair with warm or cold soapy water. This hair dye is quite harmless, and leaves no marks on the skin behind it. To use it for the Beard.—The process is the same as that for the hair, except that instead of the soda solution, ordinary soap is to be used to cleanse the beard from grease. It often happens that when the user of the dye has not taken ordinary care in cleansing the hair, the latter becomes of a false and unnatural tint. In this case the Fixateur should be used. A small sponge should be moistened with this and passed over the hair, which will make the colour natural and glossy. The Fixateur as well as the sponge must only be used in this way. It may be employed two days after the first operation without it being necessary to dye the hair anew. (Hager.)
Eau Medicinales are either simply watery solutions (HYDROLÉS, HYDROLATURES, SOLUTIONS PAR L′EAU), or distilled water (EAUX DISTILLÉES); or they are vinous or alcoholic tinctures or solutions of essential oils, aromatics, or more active drugs. See Cordials, Hair Dyes, Perfumery, Spirits, Tinctures, Waters, &c.
Eau Tonique de Chalmin is a perfumed solution of tannin.
Eau Tonique Parachûte des Cheveux. To prevent the falling off of the hair. Macerate some pieces of violet root for some days in 120 grammes rose water, filter, and add to the fluid 2 decigrammes sulphate of iron, 3 drops vinegar, 1·3 gramme each of tincture of benzoin and balsam of Peru, 7·5 grammes Provence oil, and 10 drops oil of bergamot. (Dr Casselmann.)
Eau Virginale (Chable). Lead acetate, zinc sulphate, of each 1 part; distilled water, 28 parts; eau de Cologne, 12 parts. Dissolve and mix; allow to stand for a month and filter. A spoonful mixed with a glass of water to be used as a vaginal injection. (Reveil.)
Eaux, in perfumery, are solutions of the fragrant essential oils in spirit, as eau de Cologne, eau de bouquet, &c.; or they are distilled waters, largely charged with the odorous principles of plants, as eau de rose, eau de fleurs d’oranges, &c.