Business / Agriculture / Ammonia: A pungent alkaline gas, a compound of nitrogen and hydrogen (NH3). It is formed naturally when bacteria decompose nitrogen-containing compounds, such as manures. Emissions of ammonia can be a problem in enclosed livestock facilities, and in the ambient air they may contribute to very fine particulate matter. Synthetic ammonia is used as a nitrogen fertilizer. Also called anhydrous ammonia, it is the basic feed stock for the production of all nitrogen fertilizers as well as being a direct application material. Synthetic ammonia is made through a reaction between natural gas and nitrogen.
Entertainment / Photography / Sal-Ammoniac: Ammonium chloride. Used in some high speed developers. MORE
Science / Periodic Table of Elements / Calcium (Ca): Atomic number: 20, Atomic mass: 40.08 g.mol -1, Electronegativity: 1.0, Mass volume: 1.6 g.cm-3 at 20°C, Melting point: 840 °C, Boiling point: 1484 °C, Vanderwaals radius: 0.197 nm, Ionic radius: 0 MORE