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Ammonia | NH3 or H3N | CID 222 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.
- Ammonium Hydroxide
Male rats gavaged with 1000 umol (15)N-ammonium chloride...
- Ammonium Hydroxide
Gaseous ammonia turns to a colourless liquid, which boils at −33.1 °C (−27.58 °F), and freezes to colourless crystals [21] at −77.7 °C (−107.86 °F). Little data is available at very high temperatures and pressures, but the liquid-vapor critical point occurs at 405 K and 11.35 MPa. [25]
25 Νοε 2010 · Values for the negative logarithm of the acid dissociation constant, pKa, of inorganic acids and bases, as well as hydrated metal ions. Definitions of the acid dissociation constant and pKa are given below the table. pK a values given in the table are measuered at 25°C, unless other temperature (°C) is indicated with superscript at the pKa value.
11 Οκτ 2019 · Pure liquid ammonia will have different properties than ammonia in solution. Also, when you switch solvents, it becomes difficult to compare pKa values. In water, ammonia acts as base. A pKa of 32.5 means that the amide anion NHX2X− N H X X − is a strong base.
27 Οκτ 2017 · pKa is an acid dissociation constant used to describe the acidity of a particular molecule. Its value is directly related to the structure of the given compound.
25 Νοε 2010 · Ammonia is a colourless gas with a characteristic pungent smell and hazardous in its concentrated form. Values at 25 o C /77 o F / 298 K and 1 atm., if not other temperature and pressure given. See also the following documents for changes in ammonia properties with changes in pressure and temperature:
Acidity (Pka): 32.5. Basicity (Pkb): 4.75. Ammonia (NH3) has a strong pungent odor. It is a gas at room temperature and is lighter than air. Ammonia is often stored as a liquid in high pressure tanks. In organic chemistry labs ammonia is often used in other, more easy to handle forms.
