American Soaps: A Complete Treatise on the Manufacture of Soap, with Special Reference to American Conditions and Practice

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H. Gathmann, 1893 - 334 Seiten
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Seite 311 - Some special brands are made which, in addition, contain other detergent agents, such as carbonate of ammonia, sal ammoniac or borax, while still others are found to which filling, in the form of talc, silex, etc., has been added. The soap itself may have been made by any of the processes known — cold, half boiled, or boiled, settled or boiled down — and the stock used may have been any fat, or mixture of fats, according to the grade of the washing powder to be made. It is thus seen that beyond...
Seite 253 - ... Tombs." The fraternity situation is thus different at Yale than elsewhere; and it is unfortunate that the value and the influence of fraternities should be in this way misrepresented to a reading public who do not realize that what they discuss is peculiarly a Yale problem and that the same arguments do not apply at all, or at least not in the same way, at other colleges. In Yale College, where none of the men live in the fraternity houses and where the fraternity membership roll is especially...
Seite 101 - A conveyor-screw is placed in the centre of this radiator, which surrounds the screw. As soon as a portion of the soap is melted, the screw is set in motion, thereby lifting the soap up, and dumping it over the top of the casing surrounding the screw, and the centrifugal force forces it out of, or through the open spaces left between the pipes.
Seite 20 - ... especially when the cement was capable of preventing the leakage for some length of time. The waste lye was run off through a pipe reaching through the wooden curb to a point near the bottom of the kettle. The kettles were heated by open fire, and the contents were kept from burning by stirring them with a long iron rod flattened at the end. The lye was made by leaching wood-ashes, since the use of caustic soda had made very slow advances. While processes and methods were thus, comparatively...
Seite 311 - ... to be made. It is thus seen that beyond being either principally or entirely a mixture of soap and soda, these powders have little in common with each other...
Seite 153 - At this stage the mass begins to be clear ; a small sample taken on a piece of glass is transparent and remains so until it cools off.
Seite 152 - The lye is run into the kettle in a steady stream, and under constant boiling. The presence at any time of a large surplus of lye in the kettle only retards the process of saponification, but a lack of lye at any time must also be guarded against, as it would cause "bunching" (a thickening up of the partly formed soapi.
Seite 115 - It is suggested that in warm weather the coils of pipe may be filled with brine, which has the effect of condensing the moisture in the air, thereby rendering its drying capacity, in passing over the soap, greater.
Seite 313 - In concluding it should be repeated that the foregoing has reference to the better grades of soap powder, as it is not within the province of this book to go into details...
Seite 223 - ... with the aid of the heat generated spontaneously by the action of the ingredients on each other. As the chemical...

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