534-16-7 Usage
Description
Silver carbonate, with the chemical formula Ag2CO3, is an odorless yellow to brown solid that sinks in water. It is a light yellow or yellow-green powder, slightly soluble in water, and easily turns dark purple or dark gray under long-term light exposure. Upon heating, it decomposes to produce silver oxide, which is utilized in the preparation of other silver compounds.
Uses
Used in Organic Chemistry:
Silver carbonate is used as a mild oxidizing agent for the conversion of alcohols to aldehydes and ketones, making it a valuable reagent in organic synthesis.
Used in Biological Stains:
Silver carbonate is employed as a biological stain, taking advantage of its chemical properties to enhance the visibility of cellular structures in various applications.
Used in Koenigs-Knorr Glycosylation:
In the field of carbohydrate chemistry, silver carbonate is used as a reagent in Koenigs-Knorr glycosylation, a method for forming glycosidic bonds between sugar molecules.
Used in Synthesis of Cholanoic Acid Derivatives:
Silver Carbonate on Celite is a reagent used in the synthesis of 3-Oxo-12a-hydroxy-5β-cholanoic Acid, which is a keto bile acid derivative. This application highlights its utility in the preparation of complex organic compounds in the pharmaceutical and chemical industries.
Preparation
Silver carbonate is prepared by the reaction of sodium carbonate and silver nitrate.Reaction: Dissolve 53g of sodium carbonate in 600ml of water and slowly add it to a solution of 172g of silver nitrate dissolved in 2L of water (10min). Silver nitrate is in a slight excess. The reaction mixture was vigorously stirred with a mechanical stirrer, and the silver carbonate was filtered off, washed with a small amount of acetone to facilitate drying, and then air-dried. All operations must be carried out in a dark room.
Reactions
Silver carbonate is not a powerful oxidizing agent but it is useful in Organic chemistry. Rapoport et al. were probably the first to use silver carbonate for the oxidation of alcohols to carbonyl derivatives. Rapoport refluxed codeine with silver carbonate in benzene and obtained a 75% yield of codeinone. In later work King et al. oxidized codeine with silver carbonate in refluxing toluene or xylene and obtained an 85% yield of codeinone with a much shorter reaction time.
Reactivity Profile
Silver carbonate is a carbonates salt that has weak oxidizing or reducing powers. It is decomposed by acids with the evolution of carbon dioxide.
Health Hazard
Contact with eyes causes irritation. If continued for a long period, ingestion or inhalation of silver compounds can cause permanent discoloration of the skin (argyria).
Fire Hazard
Behavior in Fire: Decomposes to silver oxide, silver, and carbon dioxide; the reaction is not hazardous.
Check Digit Verification of cas no
The CAS Registry Mumber 534-16-7 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,3 and 4 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 534-16:
(5*5)+(4*3)+(3*4)+(2*1)+(1*6)=57
57 % 10 = 7
So 534-16-7 is a valid CAS Registry Number.
InChI:InChI=1/CH2O3.2Ag/c2-1(3)4;;/h(H2,2,3,4);;