Improvements in disinfectants / [Hugo Noerdlinger].

  • Noerdlinger, Hugo.
Date:
1893
Catalogue details

Licence: Public Domain Mark

Credit: Improvements in disinfectants / [Hugo Noerdlinger]. Source: Wellcome Collection.

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    N° 631 A.D. 1393 Date of Application, 11th Jan., 1893 Complete Specification Left, 8th Sept., 1893—Accepted, 14th Oct., 1893 PROVISIONAL SPECIFICATION. Improvements in Disinfectants. I, Dr. Hugo Noerdlixgek, of Bockenheim, near Frankfort on Main, Germany, Manufacturer, do hereby declare the nature of this invention to be as follows :— This invention does not relate to the production of a new disinfectant, but has 5 for its object to render existing disinfectants more efficacious in their action. It consists in mixing with disinfectants that are soluble in water, such as carbolic acid, a body that is not soluble in water and is specifically lighter than this, so as to float upon it, such as a light tar-oil, so that the disinfectant in being dissolved in or held in suspension by such vehicle, when introduced into the effluent or other 10 liquid to be disinfected, will float upon and be effectually spread over its surface. The effective action of a disinfectant so mixed with an insoluble light vehicle, when spread over the surface of a liquid or semi liquid easily decomposible body to be disinfected, is due, firstly, to the presence of an automatically formed air 15 tight enclosure of the said easily decomposible body, whereby the atmospheric air is prevented from gaining access thereto and at the same time the gases are prevented from escaping therefrom. The absorption of such deleterious gases by the oily disinfectant covering is of great importance for disinfecting operations on a large scale, as it is quite irrational to allow gases from cesspools and sewers to 20 escape into the atmosphere through rising pipes or flues, operating as chimneys, while at the same time it is being endeavoured to prevent the pollution of the air by smoke from chimneys by enforcing the use of smoke consuming apparatus.. Secondly, the said advantage is due to the possibility of more effectually utilising the soluble constituents of the disinfectant, because, on the one hand, these soluble 25 constituents are presented as in the form of a network in the combined liquid and can consequently be readily had access to from below by the body to be disinfected which acts as a solvent. The specifically heavy solution thus formed by the disinfectant and the said body will then sink to the bottom, and fresh quantities of the solvent body will have access to the disinfectant. On the other hand, the 30 solubility is increased by the fact that the disinfectant and the liquids to be disinfected come in contact with each other upon very extended surfaces, spread over a large area. This is the more important as a number of bodies, when mixed with oil, only regain their original solubility in water when they have in the first instance taken up some water. By the large surface of contact the twofold 35 diffusion : a, of the water into the floating layer of oil, and h, of the disinfecting constituents from the layer of oil into the watery particles, is greatly facilitated. As vehicle for the disinfectants may be employed, in addition to the light oils, also resins, paraffin (kerosine) &c. which may be used either alone or in combination with light oils for taking up the disinfectants, either with or without the employment 40 of heat. As disinfectants capable of being dissolved in one or more of the said liquids, serving as vehicle, may be used, in addition to tar distillation products (to which may also be reckoned phenoles, pyridine aldehyde, ketones, aniline their homo- logues and derivatives, in particular sulpho- and oxy derivatives) chlorine bromine 45 iodine, sublimates, arsenious acid, iron chloride formic acid, benzoic acid and their homologues, thio- and oxybenzoic acid, and their homologues, sulphurous acid, quinine compounds &c. As vehicle and at the same time as disinfectant may serve acetone, oil ot [Price 8d.]