Search results
Results from the WOW.Com Content Network
It is written as Al(Hg) in reactions. [1] Al(Hg) may be prepared by either grinding aluminium pellets or wire in mercury, or by allowing aluminium wire to react with a solution of mercury(II) chloride in water. [2] [3] [1] This amalgam is used as a chemical reagent to reduce compounds, such as of imines to amines. The aluminium is the ultimate ...
Aluminium can form an amalgam through a reaction with mercury. Aluminium amalgam may be prepared by either grinding aluminium pellets or wire in mercury, or by allowing aluminium wire or foil to react with a solution of mercuric chloride. This amalgam is used as a reagent to reduce compounds, such as the reduction of imines to amines.
may react with some strong oxidizing acids: heat or physical extraction Bismuth Bi Bi 3+ Copper Cu Cu 2+ reacts slowly with air Tungsten W W 3+ [citation needed] may react with some strong oxidizing acids: Mercury Hg Hg 2+ Silver Ag Ag + Gold Au Au 3+ [6] [7] Platinum Pt Pt 4+
Mercury does not react with most acids, such as dilute sulfuric acid, although oxidizing acids such as concentrated sulfuric acid and nitric acid or aqua regia dissolve it to give sulfate, nitrate, and chloride. Like silver, mercury reacts with atmospheric hydrogen sulfide.
The reaction can be initiated with a small amount of mercury or iodine. It also can be started by treating the aluminium with an alkylaluminium halide. The products are equilibrium mixtures of the codimer (R 2 AlX • RAlX 2 ) and homodimers [(R 2 AlX) 2 and (RAlX 2 ) 2 ], in which the two aluminium atoms of each component are halogen-bridged.
Aluminium (British and IUPAC spellings) or aluminum (North American spelling) combines characteristics of pre- and post-transition metals. Since it has few available electrons for metallic bonding, like its heavier group 13 congeners, it has the characteristic physical properties of a post-transition metal, with longer-than-expected interatomic ...
Mercury retrograde refers to the period of time when Mercury moves slower than the Earth around the sun – causing it to appear to spin backward in the night sky.
The noble gases do not react with water, but their solubility in water increases when going down the group. Argon atoms in water appear to have a first hydration shell composed of 16±2 water molecules at a distance of 280–540 pm, and a weaker second hydration shell is found out to 800 pm. Similar hydration spheres have been found for krypton ...