Silver carbonate, oxidizing agent

Periodic acid is a stronger oxidizing agent than the others mentioned earlier in this chapter. It causes oxidative cleavage (fragmentation) of the carbon backbone. Normally a silver ion is present to facilitate the reaction through the precipitation of silver iodate (AglOj). 

Silver Carbonate — Fire Hazards Flash Point (deg. F) Not flammable Flammable Limits in Air (Ho) Not flammable Fire Extinguishing Agents Not pertinent Fire Extinguishing Agents Not To Be Used Not pertinent Special Hazards of Combustion Products Not pertinent Behavior in Fire Decomposes to silver oxide, silver, and carbon dioxide. The reaction is non violent Ignition Temperature (deg. F) Not pertinent Electrical Hazard Not pertinent Burning Rate Not pertinent. Chemical Reactivity Reactivity with Water No reaction Reactivity with Common Materials No... 

With activated manganese dioxide as the oxidizing agent, the yield was only 1 %. Attempted oxidations with silver carbonate, chromium trioxide, and lead tetraacetate were unsuccessful1. 2-(Methoxyphenyl)tellurophenes were converted to 2-(hydroxyphenyl)tellurophenes upon treatment with sodium ethanethiolate or boron tribromide2. 

Test for periodate (see note 1 below) This anion will give a positive test for oxidizing agents, but will not be detected in the systematic analysis. It will be necessary to remove first iodide or iodate by precipitation with silver nitrate in acid solution, and the excess silver ions with sodium chloride solution the resulting solution is strongly acidified with hydrochloric acid and an iron(II) salt is added. If a periodate is present, it will be reduced to iodine, which can be identified with carbon tetrachloride. 

Although silver carbonate although is not a very powerful oxidizing agent, it is extremely useful for the oxidation of alcohols to carbonyl compounds. The silver carbonate condensed on Celite is known as Fetizon s reagent which oxidizes primary alcohols to aldehydes (e.g. 7.5 is converted into 7.6) and secondary alcohols to ketones. 

Several less common and more expensive oxidizing agents have been used to oxidize various cyclopropylmethanols, for example, nitric acid (alcohols to carboxylic acids), oxygen combined with [Bu4N]0s(N)(CH2TMS)(Cr04)], silver(I) carbonate on Celite or basic silver(l) oxide (alcohols to aldehydes and ketones ) and ruthenium(VIII) oxide (alcohols to aldehydes, ketones, 15 - 917 acids ). Ruthenium(VIII) oxide is usually generated... 

This process has been patented for oxidizing organic wastes using Ag(II), an unstable form of silver and one of the strongest oxidizing agents known. Any carbon in the waste stream is completely oxidized to carbon dioxide with traces of carbon monoxide. Other elements end up as salts (e.g., fluorines to fluorides, sulfur to sulfates). Chlorine precipitates out with the silver as silver chloride. The process is operated at 90°C and at atmospheric pressure. 

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