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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.
NH 4 HCO 3 + HCl → NH 4 Cl + CO 2 + H 2 O. Reaction with base produces ammonia. It reacts with sulfates of alkaline-earth metals precipitating their carbonates: CaSO 4 + 2 NH 4 HCO 3 → CaCO 3 + (NH 4) 2 SO 4 + CO 2 + H 2 O. It also reacts with alkali metal halides, giving alkali metal bicarbonate and ammonium halide: NH 4 HCO 3 + NaCl → ...
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.
As the salt of a weak acid and a weak base, ammonium acetate is often used with acetic acid to create a buffer solution.Ammonium acetate is volatile at low pressures. Because of this, it has been used to replace cell buffers that contain non-volatile salts in preparing samples for mass spectrometry. [8]
Ammonium carbamate is a chemical compound with the formula [NH 4][H 2 NCO 2] consisting of ammonium cation NH + 4 and carbamate anion NH 2 COO −.It is a white solid that is extremely soluble in water, less so in alcohol.
Monoammonium phosphate crystals are piezoelectric, a property required in some active sonar transducers (the alternative being transducers that use magnetostriction).In the 1950s ADP crystals largely replaced the quartz and Rochelle salt crystals in transducers because they are easier to work than quartz and, unlike Rochelle salt, are not deliquescent.
NH 4 Cl ⇌ NH 3 + HCl. Ammonium chloride reacts with a strong base, like sodium hydroxide, to release ammonia gas: NH 4 Cl + NaOH → NH 3 + NaCl + H 2 O. Similarly, ammonium chloride also reacts with alkali-metal carbonates at elevated temperatures, giving ammonia and alkali-metal chloride: 2 NH 4 Cl + Na 2 CO 3 → 2 NaCl + CO 2 + H 2 O + 2 NH 3
Spiroligomer Scaffolds - (A) bis-amino acids (B) 3D Mock up of a bis-amino acids (C) Spiroligomer Trimer (D) 3D Mock up of a Spiroligomer. Spiroligomer molecules (also known as bis-peptides) are synthetic oligomers made by coupling pairs of bis-amino acids into a fused ring system. [1]