Search results
Results from the WOW.Com Content Network
The presence of water in the solution is reportedly necessary; the electron rich amalgam will oxidize aluminium and generate hydrogen gas from water, creating aluminium hydroxide (Al(OH) 3) and free mercury. The electrons from the aluminium reduce mercuric Hg 2+ ion [clarification needed] to metallic mercury. The metallic mercury can then form ...
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. The aluminium is the ultimate electron donor, and the mercury serves to ...
Download as PDF; Printable version; From Wikipedia, the free encyclopedia. Redirect page. Redirect to: Aluminium amalgam ...
Sodium aluminium hydride; Sodium amalgam; Sodium bis(2-methoxyethoxy)aluminium hydride; Sodium bisulfite; Sodium borohydride; Sodium cyanoborohydride; Sodium dithionite; Sodium hypophosphite; Sodium triacetoxyborohydride; Sodium triethylborohydride; Sodium–potassium alloy; Stannane; Strontium; Stryker's reagent; Sulfur dioxide
Download as PDF; Printable version; ... move to sidebar hide. Help. Aluminium alloys are alloys where the principal metal is ... Aluminium; Aluminium amalgam;
The amalgam is a more effective reducing agent than zinc metal. The effluent is often air-sensitive, requiring the use of air-free techniques. To use the reductor, the solution to be reduced is drawn through the tube. If the column is loosely packed, the solution may pass through without assistance.
Aluminum amalgam (Al/Hg) may be used for the chemoselective reduction of α-sulfonylated carbonyl groups. Carboxylic acid derivatives, acetals, thioacetals, amines, alcohols, and isolated double bonds are all inert to Al/Hg. Selective desulfonylation may be carried out on β-hydroxy sulfones without reductive elimination. [16
Main page; Contents; Current events; Random article; About Wikipedia; Contact us