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Ammonium carbonate is a chemical compound with the chemical formula [N H 4] 2 C O 3.It is an ammonium salt of carbonic acid.It is composed of ammonium cations [NH 4] + and carbonate anions CO 2− 3.
The following chart shows the solubility of various ionic compounds in water at 1 atm pressure and room temperature (approx. 25 °C, 298.15 K). "Soluble" means the ionic compound doesn't precipitate, while "slightly soluble" and "insoluble" mean that a solid will precipitate; "slightly soluble" compounds like calcium sulfate may require heat to precipitate.
Substance Formula 0 °C 10 °C 20 °C 30 °C 40 °C 50 °C 60 °C 70 °C 80 °C 90 °C 100 °C Barium acetate: Ba(C 2 H 3 O 2) 2: 58.8: 62: 72: 75: 78.5: 77: 75
It is insoluble in acetone and alcohols. Ammonium bicarbonate decomposes above about 36 °C into ammonia, carbon dioxide, and water in an endothermic process and so causes a drop in the temperature of the water: + + When treated with acids, ammonium salts are also produced:
Very soluble <1 calcium nitrate: 158.7 0.63 Freely soluble 1 to 10 calcium chloride: 65 1.54 Soluble 10 to 30 sodium oxalate: 3.9 26 Sparingly soluble 30 to 100 Slightly soluble 100 to 1000 calcium sulfate: 0.21 490 Very slightly soluble 1000 to 10,000 dicalcium phosphate: 0.02 5000 Practically insoluble or insoluble ≥ 10,000 barium sulfate ...
It is a white solid that is extremely soluble in water, less so in alcohol. Ammonium carbamate can be formed by the reaction of ammonia NH 3 with carbon dioxide CO 2, and will slowly decompose to those gases at ordinary temperatures and pressures. It is an intermediate in the industrial synthesis of urea (NH 2) 2 CO, an important fertilizer. [4]
Lead carbonate is manufactured by passing carbon dioxide into a cold dilute solution of lead(II) acetate, or by shaking a suspension of a lead salt more soluble than the carbonate with ammonium carbonate at a low temperature to avoid formation of basic lead carbonate. [2] Pb(CH 3 COO) 2 + [NH 4] 2 CO 3 → PbCO 3 + 2 [NH 4](CH 3 COO)
Most simple ammonium salts are very soluble in water. An exception is ammonium hexachloroplatinate, the formation of which was once used as a test for ammonium. The ammonium salts of nitrate and especially perchlorate are highly explosive, in these cases, ammonium is the reducing agent. In an unusual process, ammonium ions form an amalgam.