Search results
Results From The WOW.Com Content Network
The mercury beating heart is an electrochemical redox reaction between the elements mercury, iron and chromium. The reaction causes a blob of mercury in water to oscillate. The observeable reaction demonstrates an effect of a non-homogeneous electrical double layer. [1] [2] It is often used as a classroom demonstration.
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 ...
Mercury(II) oxide, also called mercuric oxide or simply mercury oxide, is the inorganic compound with the formula Hg O. It has a red or orange color. It has a red or orange color. Mercury(II) oxide is a solid at room temperature and pressure.
As indicated above, organomercury compounds react with halogens to give the corresponding organic halide. Organomercurials are commonly used in transmetalation reactions with lanthanides and alkaline-earth metals. Cross coupling of organomercurials with organic halides is catalyzed by palladium, which provides a method for C-C bond formation.
In practice, the mercury adduct product created by the oxymercuration reaction is almost always treated with sodium borohydride (NaBH 4) in aqueous base in a reaction called demercuration. In demercuration, the acetoxymercury group is replaced with a hydrogen in a stereochemically insensitive reaction [ 6 ] known as reductive elimination.
Zinc amalgam finds use in organic synthesis (e.g., for the Clemmensen reduction). [3] It is the reducing agent in the Jones reductor, used in analytical chemistry.Formerly the zinc plates of dry batteries were amalgamated with a small amount of mercury to prevent deterioration in storage.
Mercury is a chemical element; it has symbol Hg and atomic number 80. ... including psychotic reactions characterized by delirium, hallucinations, and suicidal tendency.
Mercury sulfide, or mercury(II) sulfide is a chemical compound composed of the chemical elements mercury and sulfur. It is represented by the chemical formula HgS. It ...