LYCOS RETRIEVER 
Argon
built 236 days ago
Argon is 2.5 times as soluble in water as nitrogen which is approximately the same solubility as oxygen. This highly stable chemical element is colorless and odorless in both its liquid and gaseous forms. There are no known true chemical compounds that contain argon, one of the reasons it was formerly called an inert gas. The creation of argon hydroflouride (HArF) was reported by researchers at the University of Helsinki in 2000. A highly unstable compound with fluorine has been reported but not yet proven. Although no chemical compounds of argon are presently confirmed, argon can form clathrates with water when atoms of it are trapped in a lattice of the water molecules.
Source:
Argon (Ar) is a monatomic, chemically inert gas composing slightly less than 1% of the air. Its gaseous specific gravity is 1.38 and its boiling point is –302.6°F (–185.9°C). Argon is colorless, odorless, tasteless, noncorrosive, nonflammable, and nontoxic. Commercial argon is the product of cryogenic air separation, where liquefaction and distillation processes are used to produce a low-purity "crude" argon product which is then purified to the commercial product.
Source:
Argon has a water solubility of 62 mg/L at 20oC and pressure = 1 bar. Clathrates contain argon and release the element upon dissolution. Argon does not remain dissolved in water, at least not in higher than normal concentrations.
Source:
Argon’s complete octet of electrons indicates full s and p subshells. This full outer energy level makes argon very stable and extremely resistant to bonding with other elements. Before 1962, argon and the other noble gases were considered to be chemically inert and unable to form compounds; ... compounds of the heavier noble gases have since been synthesized. In August 2000, the first argon compounds were formed by researchers at the University of Helsinki. By shining ultraviolet light onto frozen argon containing a small amount of hydrogen fluoride, argon hydrofluoride (HArF) was formed.[11] It is stable up to 40 kelvins (−233 °C).
Source:
Properties: Argon has a freezing point of -189.2°C, boiling point of -185.7°C, and density of 1.7837 g/l. Argon is considered to be a noble or inert gas and does not form true chemical compounds, although it does form a hydrate with a dissociation pressure of 105 atm at 0°C. Ion molecules of argon have been observed, including (ArKr)+, (ArXe)+, and (NeAr)+. Argon forms a clathrate with b hydroquinone, which is stable yet without true chemical bonds. Argon is two and a half times more soluble in water than nitrogen, with approximately the same solubility as oxygen. Argon's emission spectrum includes a characteristic set of red lines.
Source:
Argon was discovered in 1894 by the British scientists Sir William Ramsay and Baron John William Strutt Rayleigh. They were led to this discovery by a discrepancy between the density of supposedly pure nitrogen, prepared from air, and actually pure nitrogen, prepared from ammonium nitrate. Argon is composed of monatomic molecules and is colorless and odorless. It constitutes 0.93 percent of the atmosphere. Argon melts at -189.3°C (-308.2°F) and boils at -185.86°C (-302.55°F). The atomic weight of argon is 39.948.
Source:
MORE ABOUT
Argon