More particularly, the invention relates to anti-perspirant compositions containing 5/6 basic aluminum bromides. Ammonium bromide can be prepared by the direct action of hydrogen bromide on ammonia. : 7727-15-3 1.2 Relevant identified uses of the substance or mixture and uses advised against Identified uses : Laboratory chemicals, Industrial & for professional use only. Bromomethane was a particular cause for concern but banning it has proved impossible because it has some uses for which alternatives have not been found. Office of Response and Restoration, Furthermore, such a composition should contain a minimal amount of water so as to eliminate the extreme corrosion induced by aqueous media to the metal valves and containers, and thereby eliminate the product contamination resulting from this corrosion. Even more unexpected is the finding that the basic aluminum bromides are far better anti-perspirants than the presently commercially available aluminum chlorhydroxides. It should be noted that in the carbon tetrachloride compatibility test used in the above examples, approximately 3 cc of CCl4 is equivalent to 1 cc of a 60/40 mixture of Freon 12 and Freon 114. This section provides a listing of alternate names for this chemical, Each of the subjects used a different sample in each of the four weeks, with sample A being the control which was used for one of the four weeks by all thirty-six subjects. Chem. This does not prevent HBr formation by a catalytic mechanism, but under normal conditions anhydrous aluminum bromide is quite unreactive. These mean values were calculated using the ratios of mean reductions observed in each group to the mean reduction for all thirty-six subjects. The amount of aerosol and stick samples used was determined by weighing each container before and after each application. 's of carbon tetrachloride to effect a permanent cloudiness to 60 grams of a 30% solution of the product in anhydrous ethanol) of about 111 cc. <> Both of these values are comparable to those for the glycol complex basic aluminum halides described in U.S. Pat. Deliquescent. On exposure to air it gradually assumes a yellow color because of the oxidation of traces of bromide (Br−) to bromine (Br2). Sample applications were made by a technician to one of the axillae (armpits) of each subject after the axillae had been rinsed with tepid water to remove any soap residue. Also, after one month of storage at 105° F. the can, valve and formulation were in excellent condition, except that the can lining was discolored. The small change in gas volume was attributed to this heating. �4��>��ڒ]�H�N>Ч�Y�t�H��ί��,�$��j��y�����whq�V|����'g�"��[���D�zxPH��"��eU�F���E����9<8>��׫\�nŏ����'Bx�d���9���B*q~yx F�SV No. In order to be an effective astringent, it is necessary that the aluminum compound retain its ionic character when incorporated into the anti-perspirant composition. Basic aluminum bromides having a basicity of about 5/6 have been found to be readily soluble in cosmetic solvents such as anhydrous ethanol, to have a high degree of compatibility with halogenated hydrocarbons, and to have excellent astringent characteristics. In this lesson, we investigate its chemical formula and some of its uses in the laboratory. USA.gov. Aluminum bromide is an ionic compound that is formed from aluminum and iodine. Mean values determined after three and four applications and after five applications were adjusted on the basis of the relative response of the three test groups to the anti-perspirant activity of sample A. Brown, H.M. Hartmann, W.A. Finally, the active ingredient must be capable of being dissolved in non-aqueous media in concentrations of at least ten percent (10%) by weight, since this is the generally accepted minimum concentration required for an effective anti-perspirant [When present in an aerosol, the concentration can go as low as five percent (5%) since the average formulation contains forty to sixty percent propellants which are dissipated immediately upon application, thus making a five percent (5%) formulation equal to a ten percent (10%) concentration]. Also, from the standpoint of cosmetic acceptability, the skin drying characteristics (i.e., tackiness or stickiness) of the basic aluminum bromide are superior to either the alcohol soluble basic aluminum chloride or the glycol complexed basic aluminum halides. The containers were sprayed until empty. In addition, they may be prepared by reacting elemental bromine with aluminum metal in a water medium. The solids assayed 20.42% Al, 29.5% Br, 17.8% H2 O (calculated) and Al/Br ratio=2.05. It can also be prepared by the reaction of ammonia with iron(II) bromide or iron(III) bromide, which may be obtained by passing aqueous bromine solution over iron filings. The clear filtrate was dried to a friable solid in a rotary vacuum dryer. The chemical crystallizes in colorless prisms, possessing a saline taste; it sublimes on heating and is easily soluble in water. National Ocean Service, Solutions of aluminum bromide in dichloromethane should be kept cold as a potentially dangerous exothermic halide exchange reaction occurs on warming, [Acc. Belongs to the Following Reactive Group(s). Water was added dropwise to a reactor containing 97 grams of anhydrous AlBr3 until conversion to the hydrate was complete; then the total water content was increased to 650 g. The aqueous bromide solution was then reacted with 47 g of aluminum powder as in Example I. 3, 35 1950]. The chemical crystallizes in colorless prisms, possessing a saline taste; it sublimes on heating and is easily soluble in water. National Oceanic and Atmospheric Administration. The formulation was prepared by adding the hexadecyl alcohol, silicone fluid, stearic acid and perfume to the SDA-40 and mixing (for example using a Premier Mill Dispersator with a 1 inch Duplex Head at an average speed of about 4000 rpm) until the solution was clear. The bromine is carefully added after the reactor has been fitted with a reflux condenser to prevent losses due to evaporation. The solution assayed 11.5% Al, 16.1% Br and an Al/Br ratio of 2.11. All percentages given in this application are by weight unless otherwise specified. 5 Ertel filter pad at about 20 PSI. 16, Apr. wherein x may be from about 4.8 to 5.1 and y may be from about 0.9 to 1.2 such that x+y=6, and X may vary from about 2.0 to 3.4. wherein x may be from about 4.8 to 5.1 and y may be from about 0.9 to 1.2 such that x+y=6, and X may vary from about 2.0 to 3.4; dissolving the bromide in a non-toxic dermatologically acceptable non-aqueous solvent so that the bromide will comprise about 10 to 20 weight percent of the resulting solution; and applying the solution to the human axilla. Corrosive to metals. Aluminum react with bromine to produce aluminum bromide. Office of Response and Restoration, The temperature was raised to as high as 100° C. in order to experdite dissolution of the aluminum and the reaction was carried to a pH (25° C.) endpoint of 3.45, during which the net weight of the reactants was adjusted to about 1500 grams. Product name : Aluminium Bromide CAS-No. Res., 1986, 19(3), 78]. Aerosol cans from American Miraspra (DX20, J4 lined, BX4 LSC with OEL 500 TSS valves) were filled with 75.5 grams of the 14% solution and 55.4 mls of the propellant mixture.

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