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Cerium Ammonium Sulfate

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Cerium Ammonium Sulfate Basic information
Product Name:Cerium Ammonium Sulfate
Synonyms:Ammoniumcericsulfate,tetrah;Sulfuricacid,ammoniumcerium(4+)salt(4:4:1);sulfuricacid,ammoniumcerium(4++)salt(4:4:1);tetraammoniumceriumtetrakis(sulphate);TETRAAMMONIUM CERIUM(IV) SULFATE;TETRA-AMMONIUM CERIUM(IV) SULPHATE;CERIUM (IV) AMMONIUM SULFATE;CERIUM AMMONIUM SULFATE
CAS:7637-03-8
MF:CeH5NO4S
MW:255.22
EINECS:231-567-4
Product Categories:Inorganics;Catalysis and Inorganic Chemistry;Cerium Salts;CeriumMetal and Ceramic Science;Chemical Synthesis;Salts
Mol File:7637-03-8.mol
Cerium Ammonium Sulfate Structure
Cerium Ammonium Sulfate Chemical Properties
solubility sol water, dil. H2SO4 ,dil. H2SO4-MeCN.
form Liquid
color Clear orange
CAS DataBase Reference7637-03-8(CAS DataBase Reference)
EPA Substance Registry SystemSulfuric acid, ammonium cerium(4+) salt (4:4:1) (7637-03-8)
Safety Information
Hazard Codes Xi
Risk Statements 36/37/38-36/38
Safety Statements 26-36
MSDS Information
Cerium Ammonium Sulfate Usage And Synthesis
Usesconvenient reagent for oxidation of aromatic rings, and halophenols to quinones, for regioselective Baeyer–Villiger oxidation, and oxidative aromatization.
ReactionsCerium(IV) ion is a potent one-electron oxidant. cerium(IV) ammonium nitrate (CAN), is the most widely utilized cerium(IV) oxidizing agent, but cerium(IV) ammonium sulfate (CAS) is a good substitute when complications due to the involvement of nitrate ligands occur, resulting in side products such as nitrate esters.
Synthesis of Quinones by Oxidation of Aromatic Rings.
The most important application of CAS is in the oxidation of aromatic rings. CAN oxidizes polycyclic aromatic hydrocarbons only in moderate yields (20–60%), and these reactions are often complicated by the formation of nitrate esters. In contrast, CAS generally oxidizes aromatic hydrocarbons to quinones in goodyields.Forexample,naphthalene is oxidized to 1,4-naphthoquinone in excellent yield by CAS in a dilute mixture of H2SO4 and MeCN (eq1).
cerium(IV) ammonium sulfate:Synthesis of Quinones by Oxidation of Aromatic Rings
storagecerium(IV) ammonium sulfate is a stable reagent and precautions required for handling strong oxidizing agents such as potassium permanganate will be sufficient. Cerium is reputed to be of low toxicity.
Cerium Ammonium Sulfate Preparation Products And Raw materials
Raw materialsCERIUM-->Ammonium sulfate-->Cerium tetrahydroxide
Tag:Cerium Ammonium Sulfate(7637-03-8) Related Product Information
Cerium tetrahydroxide CERIUM (III) NITRATE CERIC SULFATE CERIUM(III) SULFATE N-HYDRATE CERIUM(III) CHLORIDE CERIUM CERIUM(III) PHOSPHATE Ceric ammonium nitrate CERIUM(III) NITRATE HEXAHYDRATE Ammonium sulfate CERIC SULFATE CERIUM AMMONIUM CERIUM(IV) SULFATE 4 H2O,AMMONIUM CERIUM(IV) SULFATE TETRAHYDRATE AMMONIUM CERIUM(IV) SULFATE TETRAHYDRATE AMMONIUM CERIUM(IV) SULFATE DIHYDRATE AMMONIUM CERIUM(IV) SULFATE SOLUTION AMMONIUM CERIUM(IV) SULFATE HYDRATE