Bismuth gallate

Bismuth subgallate [12552-60-2] (basic bismuth gallate), Dermatol, is a bright yellow powder that can be prepared by the interaction of bismuth nitrate and gallic acid in an acetic acid medium. It has been employed as a dusting powder in some skin disorders and as an ingredient of suppositories for the treatment of hemorrhoids (183,185). It has been taken orally for many years by colostomy patients in order to control fecal odors, but the dmg may cause serious neurological problems (186). 

Basic bismuth gallate and free tribromophenol can be detected in small samples of bismuth tribromophenoxide by the simultaneous ascending chromatography of a neutral ethanolic suspension of one portion of the sample and an acidified ethanolic solution of... 

Two cases of respiratory complications following the use of bismuth gallate have been reported (9). 

Bismuth gallate (formerly known as Dermatol ) is antiseptic, astringent and siccative. Gallium nitrate reduces metalloproteinase activity in wounds and promotes the migratory phenotype of keratinocytes that can move more easily over the temporary protein matrix and close the wound more quickly. It reduces keratinocyte ability to synthesize the desmosomes that anchor the cell locally and limit its movements. 

Bismuth subgallate is also known as bismuth 3,4,5-trihy-droxybenzoate dihydroxide, basic bismuth gallate and gallic acid bismuth basic salt. Its molecular weight is 394.09. It has low toxicity not much bismuth is absorbed. If bismuth... 

Basic bismuth gallate. See Bismuth subgallate Basic bismuth salicylate. See Bismuth subsalicylate Basic blue 1 CAS 3521-06-0... 

Bismuth gallate basic Bismuth (III) gallate, basic. See Bismuth subgallate Bismuth hydrate. See Bismuth hydroxide Bismuth hydroxide CAS 10361-43-0... 

Salts of organic acids like bismuth citrate, gallate, lactate, salicylate, thioglycolate, or camphorate also exist as basic compounds. Bismuth subcitrate forms a colloidal solution with molecules of the formula [BixCOHlyfCgHsO ) ] depending on the acidity of the solution. Bismuth potassium tartrate and bismuth sodium tartrate are soluble in water, but with time they decompose [1,2,5,61. 

Radiation protection Natural rubber composites Bismuth (III) oxide Bismuth oxochloride Gadolinium (III) oxide Bismuth (III) gallate... 

When solutions of lead or bismuth salts are treated with alkali hypo-bromite, lead peroxide and higher oxides of bismuth are formed. These products react with benzidine acetate to give benzidine blue (seepage 282). However, if bismuth salts are heated alone with alkali hydroxides, a yellow precipitate forms, [probably BiO(OH)] and, when once formed, is not converted into higher bismuth oxides on treatment with h3q)obromite. This resistance is applied in the detection of lead in bismuth salts. The following procedure is recommended in the examination of pharmaceutical bismuth preparations (e.g., bismuth sub-gallate, -tannate, -salicylate). 

Doshi et al. (1999) used an electrolyte of ceria-doped gallate (CeGO) 30 p,m thick. In the cell, a two-phase cathode 250 p,m thick was used that consisted of a cermet of 45 to 55% silver and electrolyte material in the form of yttria-doped bismuth oxide (YDB). An Ni-CeGO cermet served as the anode. At a working temperature of 500°C and a ceU voltage of 0.6 V, the current density was 100 mA/cm at a cell voltage of 0.4 V, the current density was 3(K) mA/cm. It is interesting to note that in this cell, the contributions of the ohmic resistance of the electrolyte (0.7 cm ) and of cathode polarization (0.6 cm ) to the... 

Propyl gallate, CioHi205, Mol. Wt. 212 2. This is assayed gravimetrically by precipitation with bismuth the conditions given below give a readily filterable precipitate, but the precision of the method is not good. An... 

To a boiling solution of 0 2 g in 100 ml of water add 50 ml of a solution prepared by refluxing 5 g of bismuth nitrate with 250 ml of water and 7 5 ml of concentrated nitric acid until dissolved, cooling and filtering. Continue to boil for a few minutes, cool, filter, wash the residue with a mixture of one volume of dilute nitric acid and thirty volumes of water and dry to constant weight at 110°. Weight of residue x 0 4863 = propyl gallate. 

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