recipe is to be regarded as a basis of experiment, to be modified to suit the particular purpose in hand, or the peculiar conditions which may affect the experimenter. Chemicals are not always of uniform relative purity and strength; heat or cold may markedly influence the result obtained, and lack of skill in the handling of utensils and instruments may sometimes cause failure. Inasmuch as a particular formula may not always be applicable, the Editor has thought it advisable to give as many recipes as his space would allow under each heading. In some instances a series of formulas is given which apparently differ but slightly in their ingredients. This has been done on the principle that one or more may be chosen for the purpose in hand.
Recognizing the fact that works of a similar character are not unknown, the Editor has endeavored to present in these pages the most modern methods and formulas. Naturally, old recipes and so-called trade secrets which have proven their value by long use are also included, particularly where no noteworthy advance has been made; but the primary aim has been to modernize and bring the entire work up to the present date.
THE EDITOR.
JANUARY, 1914.
PARTIAL LIST OF AUTHORITIES CONSULTEDTable of ContentsApothecary, The.Berliner Drog. Zeitung.Brass World.British Journal of Photography.Chemical News.Chemiker Zeitung Repertorium.Chemisch Technische Fabrikant.Chemische Zeitung.Chemist-Druggist.Comptes Rendus.Cooley’s Receipts.Cosmos.Dekorationsmaler, Der.Deutsche Drog. Zeitung.Deutsche Goldschmiede Zeitung.Deutsche Handwerk.Deutsche Maler Zeitung.Deutsche Topfer und Ziefler Zeitung.Dingler’s Polytechnic Journal.Drogisten Zeitung.Druggists’ Circular.English Mechanic.Farben Zeitung.Gummi Zeitung.Journal der Goldschmiedekunst.Journal of Applied Microscopy.Journal of the Franklin Institute.Journal Society of Chemical Industry.Journal Suisse d’Horlogerie.Keramische Rundschau.La Nature.La Science en Famille.La Vie Scientifique.Lack und Farben Industrie.Legierungen.Le Genie Civil.Le Praticien.Leipziger Farber und Zeugdrucker Zeitung.Maler Zeitung.Metallarbeiter.Mining and Scientific Press.Neueste Erfindungen und Erfahrungen.Nouvelles Scientifiques.Oils, Colors, and Drysalteries.Papier-Zeitung.Parfumer, Der.Pharmaceutische Zeitung.Pharmaceutische Centralhalle.Pharmaceutische Era.Pharmaceutische Journal.Pharmaceutische Journal Formulary.Photo Times.Polytech. Centralblatt.Polyt. Notizblatt.Popular Science News.Pottery Gazette.Practical Druggist.Revue Chronometrique.Revue de la Droguerie.Revue des Produits Chimiques.Revue Industrielle.Science, Arts and Nature.Science Pratique.Seifensieder Zeitung, Der.Seifenfabrikant, Der.Spatula.Stein der Weisen, Der.Sudd. Apoth. Zeitung.Technisches Centralblatt.Technische Rundschau.Uhland’s Technische Rundschau.Verzinnen Verzinken Vernickeln, Das.Werkmeister Zeitung.Wiener Drogisten Zeitung.Wiener Gewerbe Zeitung.Zeitschrift für die Gesammte Kohlensaure Industrie.
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HENLEY’S BOOK OF RECIPES
ABRASION REMEDY: See Cosmetics and Ointments.
ABSINTHE: See Wines and Liquors.
ACID-PROOFING
An Acid-proof Table Top.—
| 1. | |
|---|---|
| Copper sulphate | 1 part |
| Potassium chlorate | 1 part |
| Water | 8 parts |
| Boil until salts are dissolved. | |
| 2. | |
| Aniline hydrochlorate | 3 parts |
| Water | 20 parts |
| Or, if more readily procurable: | |
| Aniline | 6 parts |
| Hydrochloric acid | 9 parts |
| Water | 50 parts |
By the use of a brush two coats of solution No. 1 are applied while hot; the second coat as soon as the first is dry. Then two coats of solution No. 2, and the wood allowed to dry thoroughly. Later, a coat of raw linseed oil is to be applied, using a cloth instead of a brush, in order to get a thinner coat of the oil.
A writer in the Journal of Applied Microscopy states that he has used this method upon some old laboratory tables which had been finished in the usual way, the wood having been filled oiled, and varnished. After scraping off the varnish down to the wood, the solutions were applied, and the result was very satisfactory.
After some experimentations the formula was modified without materially affecting the cost, and apparently increasing the resistance of the wood to the action of strong acids and alkalies. The modified formula follows:
| 1. | |
|---|---|
| Iron sulphate | 4 parts |
| Copper sulphate | 4 parts |
| Potassium permanganate | 8 parts |
| Water, q. s. | 100 parts |
| 2. | |
| Aniline | 12 parts |
| Hydrochloric acid | 18 parts |
| Water, q. s. | 100 parts |
| Or: | |
| Aniline hydrochlorate | 15 parts |
| Water, q. s. | 100 parts |
Solution No. 2 has not been changed, except to arrange the parts per hundred.
The method of application is the same, except that after solution No. 1 has dried the excess of the solution which has dried upon the surface of the wood is thoroughly rubbed off before the application of solution No. 2. The black color does not appear at once, but usually requires a few hours before becoming ebony black. The linseed oil may be diluted with turpentine without disadvantage, and after a few applications the surface will take on a dull and not displeasing polish. The table tops are easily cleaned by washing with water or suds after a course of work is completed, and the application of another coat of oil puts them in excellent order for another course of work. Strong acids or alkalies when spilled, if soon wiped off, have scarcely a perceptible effect.
A slate or tile top is expensive not only in its original cost, but also as a destroyer of glassware. Wood tops when painted, oiled, or paraffined have objectionable features, the latter especially in warm weather. Old table tops, after the paint or oil is scraped off down to the wood, take
