Hot water bottle wall is silver or silver bromide?
Silver, the teacher said that the silver mirror reaction has said silver, silver bromide is colored silver bromide is light yellow solid, insoluble in acid, visible light decomposition. Mercury that more impossible, and toxic mercury is a liquid with? Oh, that's heavy metal hg air dissolve through the high will be the dead ah
Hot water tank wall is often a layer of silver plated material is silver (now has aluminum)
Silver is AG Aldehyde and silver ammonia solution, reduction of Ag + Ag, let us together to learn: In wash the test tube to join about 2 ml2 % of silver nitrate solution, and then by adding 2% drops of ammonia, until the precipitation to dissolve in the first place. Then the solution is called silver ammonia solution. In silver ammonia solution and add 3 ~ 4 drops of acetaldehyde, after the oscillation tube put in hot water bath temperature, the observed phenomenon. For a moment he saw tube wall attached to a layer of bright as a mirror of silver. In this reaction, the silver nitrate react with ammonia to produce the silver ammonia complex. AgNO3 + 3 NH3 · H2O - Ag (NH3) 2 oh + NH4NO3 + 2 H2O Silver ammonia complex Silver ammonia complex acetaldehyde oxidation into acetic acid (with ammonia to generate acetic acid ammonium acetate). Itself was rebuilt the metallic silver, attached to the tube wall and the formation of silver mirror, this is called silver mirror reaction. Response is used to test the existence of the aldehyde group. Industrial use of silver mirror reaction this principle on the glass with silver mirror or insulation system inside. The reducing agent of production is not acetaldehyde, but the glucose solution of aldehyde group.
