Acid ammonium carbonate

Ammonium bicarbonate, also known as ammonium hydrogen carbonate or ammonium acid carbonate, is easily formed. However, it decomposes below its melting point, dissociating into ammonia, carbon dioxide, and water. If this process is carefully controlled, these compounds condense to reform ammonium bicarbonate. The vapor pressures of dry ammonium bicarbonate are shown below (7). (To convert kPa to mm Hg, multiply by 7.5.)... 

Synonyms ammonium hydrogen carbonate ammonium acid carbonate... 

Write the formula for (a) ammonium hydrogen carbonate, (b) ammonium bicarbonate, (c) ammonium acid carbonate. 

Ammonium acid carbonate, ammonium hydrogen carbonate. 

Discussion As was recently stated in the experiment on the preparation of boric acid from borax, a compound may be obtained by double decomposition when it is sufficiently insoluble to be precipitated under the conditions of the reaction. Thus sodium acid carbonate, which is much less soluble than sodium chloride, will be precipitated from a saturated solution of sodium chloride upon the addition of ammonium acid carbonate. The ammonium acid carbonate, however, can not be added in solution, since the additional water would serve to keep the sodium acid carbonate also in solution. Therefore carbon dioxide is passed into a saturated solution of sodium chloride which contains ammonia. 

Directions (a) Saturate 10 c.c. of ammonium hydroxide solution with sodium chloride in a large test tube by adding an excess of the salt, shaking the mixture vigorously, and then filtering out the undissolved remainder. Set up a generator for carbon dioxide as in Experiment 38 6, and pass the gas into the solution until a heavy precipitate is obtained. Filter out the precipitate and dry it by pressing it between sheets of filter paper. (1) What is this substance (2) Write two equations for the reactions which takes place and cause the formation of the precipitated substance. (3) What caused the second reaction to take place (4) Why is not a solution of ammonium acid carbonate used to produce this reaction with a solution of sodium chloride ... 

Synouyms cas 1066-33-7 ammonium acid carbonate ammonium hydrogen carbonate carbonicacid ... 

Chelated complexes such as sodium zirconium lactate [15529-67-6] or ammonium zirconium carbonate [22829-17-0] and acidic forms such as zirconium hydroxy oxide chloride [18428-88-1] have been used in preparations in deodorants or for treatment for poison oak and poison ivy dermatitis. In such occasions, when the skin had been cut or abraded, a few users developed granulomas which have been identified as a delayed hypersensitivity to zirconium (99). These may take several weeks to develop, and commonly persist for 6 months to over a year. 

Materials containing the above structure in the polymer chain may be made from copolymers of methacrylic acid and methacrylonitrile. Ammonia-producing additives (such as urea and ammonium hydrogen carbonate) are added to the... 

Such reactions can be promoted by exposing the chromatogram to the vapors of hydrogen halides, to nitric acid fumes [4], to ammonia or oxides of nitrogen [2] in suitable reaction chambers [10]. Ammonium hydrogen carbonate, first proposed by SEGxmA and Gono is also suitable [11]. 

With or without acids, alkalis, salts, with exception of aimnonium and sulfite With or without acids, alkalis, salts, in presence of sulfites (sulfurous acid, Na or K sulfite and bisulfite) no ammonium compounds used With or without acids, alkalis, salts, in presence of ammonium compounds (hydroxide, carbonate, ammonium hydrogen carbonate, phosphate) no sulfite used With or without acids, alkalis, salts, in presence of ammonium compounds and sulfite... 

Ammonium perchlorate Carbon Bromine pentafluoride Acids, etc. Bromine trifluoride Halogens, etc. Chlorine trifluoride Metals, etc. MRH 6.19/85... 

The equations that represent the reactions with water support the prediction that NH4NO3 dissolves to form an acidic solution and Na3P04 dissolves to form a basic solution. Calcium chloride is the salt of a strong base-strong acid, so neither ion reacts with water and the solution is neutral. Both ions in ammonium hydrogen carbonate react with water. Because Kt, for HCOs" is greater than for NH4, the salt dissolves to form a weakly basic solution. 

Picric acid. Sodium hydroxide. Ammonium bisulfide. Carbon disulfide... 

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