Beryllium basic carbonate

Beryllium butyrate, basic, properties and structure of, 3 7, 8 Beryllium carbonate, basic, for use in preparation of basic beryllium acetate, 3 10 Beryllium chloride, anhydrous, 6 22 Beryllium o-chlorobenzoate, basic, properties of, 3 7 Beryllium complex compounds, basic, of organic acids, 3 4 basic, structure of, 3 6 nonelectrolytes, with acetylace-tone, Be(CsH702)2, 2 17 with benzoylacetone, Be(Cio-H 02)2, 2 19... 

Beryllium acetate, basic see Beryllium and beryllium compounds) Beryllium-aluminium alloy see Beryllium and beryllium compounds) Beryllium carbonate see Beryllium and beryllium compounds) Beryllium chloride see Beryllium and beryllium compounds) Beryllium-copper alloy see Beryllium and beryllium compounds) Beryllium-copper-cobalt alloy see Beryllium and beryllium compounds) Beryllium fluoride see Beryllium and beryllium compounds)... 

The loaded oiganic phase is stripped of beryllium using an aqueous ammonium carbonate [506-87-6] solution, apparently as a highly soluble ammonium beryllium carbonate [65997-36-6] complex, (NH Be O. All of the iron [7439-89-6] contained in the leach solution is coextracted with the beryllium. Heating the strip solution to about 70°C separates the iron and a small amount of coextracted aluminum as hydroxide or basic carbonate... 

Heating the ammonium beryllium carbonate solution to 95°C causes nearly quantitative precipitation of beryllium basic carbonate [66104-24-3], Be(OH)2 2BeC03. Evolved carbon dioxide and ammonia are recovered for recycle as the strip solution. Continued heating of the beryllium basic carbonate slurry to 165°C liberates the remaining carbon dioxide and the resulting beryllium hydroxide [13327-32-7] intermediate is recovered by filtration. The hydroxide is the basic raw material for processing into beryllium metal, copper—beryllium and other alloys, and beryllia [1304-56-9] for ceramic products. Approximately 90% of the beryllium content of bertrandite is recovered by this process. 

Eight grams of basic beryllium carbonate (of analysed beryllium content) are stirred with 16ml of glacial acetic acid on a hot plate or steam bath until carbon dioxide is no longer evolved. The solution is cooled and the product is filtered off by suction and air-dried. The crude material is stirred with 20ml of dry chloroform and insoluble impurities are removed by filtration. The chloroform solution is evaporated to dryness on the steam bath and the colorless crystals of the product (m.p. 285-286°C) are dried in vacuo to remove residual solvent. 

Ammonium beryllium carbonate solutions are prepared by dissolving the hydroxide or the basic carbonate in warm (50°C) aqueous mixtures of NH4HCO3 and (NH4) C03. After filtering to remove insoluble impurity hydroxides and adding a chelating agent, heating above 88°C evolves... 

NHj and CO2 and precipitates a high-purity, basic beryllium carbonate. If the aqueous system has the stoichiometry of (NtL Be COi) , analogous to the ammonium nranyl carbonate system, the basic beryllium carbonate product of hydrolysis is 2BeCC>3 Be(OH)2- This compound is readily dissolved in all mineral acids, making it a valuable starting material for laboratory synthesis of beryllium salts of high purity. 

Ammonium carbonate solution white precipitate of basic beryllium carbonate, soluble in excess of the reagent (difference from aluminium). On boiling the solution, the white basic carbonate is reprecipitated. 

A precipitate that separates here may be (basic) beryllium carbonate. It should be filtered off and tested for Be by the basic acetate-chloroform test or by the acetylacetone test (see Section VII.16, reactions 6 and 9). 

The simple trifluoroacetates of all the alkaline earth elements have been reported (36,105, 247, 263). Compound Be(02CCF3)2 was obtained in a study of several beryllium haloacetates and, although a deliberate attempt was made to prepare basic beryllium trifluoroacetate, Be40(02CCF3)g, by the thermal decomposition of the simple salt, none could be obtained (268). Also Be40(02CCF3)e does not appear to be produced when beryllium carbonate is treated with trifluoroacetic acid and the solution extracted with chloroform (122, 174). 

Basic beryllium carbonate (40 gi) is mixed with 80 ml. of glacial acetic acid and stirred, with heating, until CQ3 evolution ceases. The end of the reaction is also recognized by the start of precipitation of white, semitranslucent crystals o erwise, there is an amorphous, white residue. The solution is cooled to room temperature and the crystallized basic acetate is filtered off and dried in air. 

Beryllium hydroxide or basic beryllium carbonate is stirred with glacial acetic acid to a paste and evaporated to dryness in a laboratory oven at 120 to 130°C. The crude product thus formed is extracted with glacial acetic acid in a Soxhlet apparatus (using a glass wool filter) after cooling, it crystallizes from the extract in well-formed octahedra, which are filtered off and dried at 130°C. 

Beryllium is amphoteric forming beryl-late species, such as [Be(OH)4] and [Be(OH)]3. The hydroxide is only weakly basic. The element does not form a true carbonate the basic beryllium carbonate, BeC03.Be(0H)2 is formed when sodium carbonate is added to solutions of beryllium compounds. 

The nitrate is easily made (1906 13) by saturating nitric aad with basic beryllium carbonate, evaporating to a syrupy coo-... 

Beryllium Carbonate.—No normal carbonate of beryllium is known. The carbonate, BeCOj.4HjO, claimed by Klatzo (1869 I), was a mistake and has never been made, and can not be made unless from non-aqueous solution. The so-called basic carbonates are important and several double carbonates are known (see basic salts and double carbonates). 

Action of Organic Acid on Beryllium Carbonate or Basic Carbonate. This method is similar in all respects to the above procedure. While it has been used most extensively for only the simpler members of the series, there is no apparent reason why it should not be equally effective for the preparation of other members as well. The procedure is one of the few claimed to give the basic formate. Directions given for the preparation of the basic acetate (synthesis 3) and basic propionate (synthesis 3) represent modifications of this general procedure. 

Forty grams of basic beryllium carbonate is stirred with 80 ml. of glacial acetic acid on the hot plate until carbon... 

Twenty-five grams of basic beryllium carbonate is treated with 125 ml. of propionic acid in a 400-ml. beaker. When evolution of carbon dioxide has ceased, the solution is transferred to a porcelain evaporating dish and evaporated on a... 

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