Ammonium sesquicarbonate

The ordinary method of determining the solubilities cannot be applied to the commercial carbonate because a sat. soln. decomposes any fresh carbonate added to it. F. Riidorlf found the temp, fell from 15 3° to 3 2° when 25 parts of salt are dissolved in 100 parts of water. E. Divers found that 100 parts of water at 15° dissolve 25 parts of the commercial salt, and at about 65°, 66 7 parts. When the sat. soln. is cooled, it furnishes crystals of the hydrocarbonate. T. J. Pelouze and E. Fremy 2 said that the sesquicarbonate separates under these conditions, but in E. Divers opinion this statement is wrong. According to J. J. Berzelius, 100 parts of water at 49° dissolved 50 grms. of the old carbonate of commerce. In a general way, E. Divers has shown that the solubility of the commercial carbonate approximately accords, with the hydrocarbonate it contains—viz. one of the salt in two of water. G. Lunge measured the sp. gr., D, of soln. of ammonium sesquicarbonate and found this constant rose from 1-005 with 1 66 per cent, of salt to 1144 with 44 90 per cent, of salt, at a temp. 12°. Some intermediate values are ... 

Ammonium sesquicarbonate 4220 (NH4)4H2acid carbonate of grayleh or reddish crystalline crust In wine ceeks ... 

Htdroammooto Cahbonate — Monoammonic carbonate — Acid carbonate of ammonia—H(NHjCO,—79—is prepared by saturating a solution of NH HO or ammonium sesquicarbonate with CO,. It crystallizes in large, rhombic prisms quite soluble in H 0. At 60 (140 F.) it is decomposed into NH, and CO,. 

Ammonium Sesquicarbonate—Sal volatile—Preston salts—Am-monii carbonas (U. S.)—Ammoniee carbonas (Br.)—(NH4)4Ha(COa)s —254—is prepared by heating a mixture of NH4CI and chalk, and condensing the product. It crystallizes in rhombic prisms has-an ammoniacal odor and an alkaline reaction soluble in H3O. By exposure to air or by heating its solution, it is decomposed into H,0, NH and H(NH4)CO,. 

Synonyms CAS 506-87-6 carbonic acid, ammonium salt diammonium carbonate CRYSTAL AMMONIA AMMONIUM SESQUICARBONATE HARTSHORN... 

The need to include the carbamate equilibria points up the fact that in order to model electrolyte systems one must identify all relevant species. Ignoring the possibility of solids formation (e.g. ammonium bicarbonate, ammonium carbamate, ammonium carbonate, ammonium sesquicarbonate), these eight equilibria define the water-ammonia-oarbon dioxide system in terms of the twelve species concentrations ... 

J. Black s investigation 3 of 1756 is the first contribution to the chemistry of the carbonates of ammonia, and he pointed out the chemical difference between the aqua ammonia and the solid carbonate of commerce. J. Priestley also, in 1774, dwelt on the same subject. T. Bergmann analysed the commercial carbonate in 1774 H. Davy emphasized the variable nature of the compounds of carbon dioxide and ammonia in 1799 while C. L. Berthollet (1806) and J. Dalton (1819) demonstrated that there are several different carbonates of ammonia. In his paper On the combinations of carbonic anhydride with ammonia and water (1870), E. Divers showed that there are at least three well-defined ammonium carbonates—the normal carbonate, the hydrocarbonate, and the sesquicarbonate. On the other hand, in his paper Ueber die Verbindungen des Ammoniaks mit der Kohlensaure (1839), H. Rose claimed to have shown that an indefinitely large number of these compounds can be prepared, and he described twelve of them. He said ... 

In 1839, H- Rose said that the ordinary commercial carbonate liquefied when slowly heated in a retort whereas, in 1870, E. Divers found scarcely any liquefaction. The older carbonate when distilled with anhydrous calcium chloride gave ammonium chloride, calcium carbonate, and carbon dioxide, whereas the newer carbonate gave in addition ammonium carbamate. The solubility of the newer carbonate is about twice as great as the old and the aq. soln. is not charged with carbon dioxide. R. Phillips and E. Divers have also reported as rare the occurrence of the hydrocarbonate in commercial carbonate. In consequence of these differences it is necessary to know whether the old or the new carbonate is in question when discussing the properties of the commercial carbonate. Sometimes the sesquicarbonate is to be understood. 

Sal amioniak, ammonium chloride (originally sat armeniaCy from its occurrence in Armenia, changed later to sat ammmiaCy owing to its confusion with natron, or sodium sesquicarbonate, found near the temple of Jupiter Ammon in Libya). 

Serpentarla The dried rhizome and roots of the blrthwort Artstotochla serpen-taria and of the Texas snakeroot (A. reticulata) used for aromatic bitters. Sesquicarbonate of ammonia See ammonium sesqutcarbonate. 

AI3-25347 Ammonia sesquicarbonate Ammonium carbonate Ammoniumcarbonat Carbonate d ammoni-aque Carbonic acid, diammonium salt Caswell No. 042 CCRIS 7328 Diammonium carbonate EINECS 208-058-0 ERA Pesticide Chemical Code 073501 HSDB 6305 Salt of Hartshorn. Also typically contains ammonium carbamate. Crystals mp = 58 (dec) vaporizes at about 60° incompatible with acids and acid salts soluble in H2O (25 g/100 ml). 

Sodium metasilicate pentahydrate Sodium sesquicarbonate Ammonium Hydroxide (28% sol n.) Opacifier E-295 (40% sol n)... 

Into 90% of the total water, dissolve the Sodium metasilicate and the Sodium sesquicarbonate. Add the Amphoterge K-2 and the Unamide C-72-3 with stirring after each addition until a clear solution is obtained. In a separate vessel, disperse the Opacifi er E-295 into the remaining water and stir the mixture into the batch. Finally, add the Ammonium Hydroxide, stirring for an additional five minutes to insure batch uniformity. 

Ammonium carbonate Citric acid Methyl vinyl ether/maleic acid copolymer Nitrilotriacetic acid Oxidized cellulose PEG-2 cocomonium chloride Sodium disilicate Sodium metaphosphate Sodium sesquicarbonate Sodium silicoaluminate Tetrapotassium pyrophosphate Tetrasodium EDTA Zeolite Zeolite synthetic detergent builder, household cleaners Potassium silicate detergent builder, laundry powders Sodium sulfate... 

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