File Name: solubility of sodium perborate tetrahydrate in water and sodium metaborate solutions .zip
Boron truly is an integral part of modern life. Aside from its numerous primary applications—as a component in borosilicate glass, textile fiberglass, agriculture, wood protection, industrial processes, detergents, metallurgy, insulation, energy production, adhesives, and ceramics—boron and borates are used to:.
Claims priority, application Great Britain Augu's'tfl, 19 52 8 Glaims. In order to reduce the cost of transportation', and forother' reasons, iris desirable 'to remove some or' 'all of the "water from borax, as by' dehydration; However; available 'method's'for' doing that are either less efie'ctive thanlmaybe desired 'or are com'merciallyinco'nvenientbecause of. The starting material may comprise primarily sodium tetraborate, for example ordinary borax or the pentahy-.
Application October 12, , Serial No. Claims priority, application Netherlands October 17, 8 Claims. These compounds may both be obtained in a crystalline form. Other hydrates, which are described in the literature, are mixtures of the abovernentioned salts or possess an amorphous structure. Various difiiculties arise in the use of these compounds as such and even more when mixed with other substances.
Borates in many forms are used to produce laundry detergents, household or industrial cleaners, and hand soaps. Borates or perborates are used in many household and industrial products for cleaning metals, glass, sinks, bathtubs, toilets, floors, and machinery. The choice of borate depends on the type, composition, and quality of the final product. For more than years, borates have been used in a variety of household and industrial laundry detergent formulations. The vast majority of clothes throughout the world are still washed by hand. New trials on laundry soap bars demonstrate that borates significantly improve cleaning action and reduce dirt redeposition—leading to brighter, cleaner clothes.
This application is a continuation-in-part of U. Sodium perborate, a known material, is used both in the form of the so-called tetrahydrate and in the form of the so-called monohydrate in detergent, bleaching and cleaning agents. The designations for the various perborates employed above and also in the following description do not correspond to the scientific nomenclature, but they are common forms in the art. In addition to the active oxygen content, the exterior form, the nature of the surface, the grain size distribution, the bulk density, the shelf life, and the rate of dissolution play an important part for the selection of a perborate for a specific application, e. Accordingly, many methods are directed toward influencing these parameters by means of the method of preparation. Prior art detergent materials have used sodium perborate tetrahydrate formulations almost exclusively.
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Product Number: All applicable American Elements product codes, e. Supplier details: American Elements Weyburn Ave. Suspected of damaging fertility.
Its name is sometimes abbreviated as PBS. The compound is commonly encountered in anhydrous form or as a hexahydrate commonly called "monohydrate" or PBS-1 and "tetrahydrate" or PBS-4 , after the early assumption that NaBO 3 would be the anhydrous form. This salt is widely used in laundry detergents , as one of the peroxide-based bleaches.
Filed May 26, , Ser. The present invention relates to aqueous perborate concentrates containing dissolved perborate in an amount substantially in excess of the solubility of perborate in water and to a method for producing and using such concentrates. Commercial sodium perborate sodium metaborate perhydrate having the formula NaBO -H O -3H O- is an oxidant and bleach that has a widespread range of applications and which, when dissolved in water, breaks down into sodium metaborate and hydrogen peroxide providing the combined action of the oxygen-yielding hydrogen peroxide with that of the alkalinely reacting metaborate.
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The solubilities of sodium perborate tetrahydrate were measured in water and sodium metaborate solutions as a function of the temperature. The results.
The solubilities of sodium perborate tetrahydrate were measured in water and sodium metaborate solutions as a function of the temperature. The results obtained in the temperature range (11 to 30) degrees C in the solutions containing sodium metaborate at concentrations up to 5 mass % were compared with previous work.