Ammonium Peroxydisulfate

Ammonium peroxydisulfate [7727-54-0] M 228.2, m dec when heated wet liberating oxygen, d 1.98. Recrystd at room temperature from EtOH/water. 

Chemical Designations-Sy/io/ nzs Ammonium Peroxydisulfate Peroxydisulfuric Acid, Diammonium Salt Chemical Formula (NH4)2SjOg. 

Fluka purum-grade ammonium peroxydisulfate was used by the submitter. The checkers used ACS reagent-grade material available from Fisher Scientific Company. 

Alkylation of protonated nitrogen heterocycles (e.g., pyridines, quinolines) can be accomplished by treatment with a carboxylic acid, silver nitrate, sulfuric acid, and ammonium peroxydisulfate. The R group can be primary, secondary, or tertiary. The attacking species is R% formed by " ... 

Oxidation of the complexes [Ag(Py)4][MoF6] and [Ag(Py)2][UF6] in acetonitrile by MoF6 and UF6, respectively, leads to the silver(III) compounds [Ag(Py)4(NCMe)][MoF6]3 and [Ag(Py)2(NC-Me)3][UF6]3, which are strong oxidizing agents.167 Other pyridine silver(III) complexes have been obtained by oxidation of silver nitrate and ammonia with ammonium peroxydisulfate in aqueous... 

Ghasemi et al. [24] have obtained nanostructured Pb02 (50-100 nm) using [5-PbO precursor and in the presence of ammonium peroxydisulfate as an oxidant. Here, the ultrasonication dispersed and then cracked the [5-PbO particles, thereby increasing the contribution of their surface area. Such an ultrasonic treatment resulted in an enhancement in the oxidation of PbO to Pb02 has been observed. Ultrasonic waves also have been found to inhibit the formation of Pb02 particles larger than 150 nm. 

Another useful reagent for selenoncyclization is phenylselenenyl sulfate. This reagent is capable of cyclizing unsaturated acids76 and alcohols.77 This reagent can be prepared in situ by oxidation of diphenyl diselenide with ammonium peroxydisulfate.78... 

Monopersulfuric acid (monoperoxysulfuric acid, H2SO5, Caro s acid) was first detected during electrolysis of sulfuric acid . Later, in 1898, Caro found the oxidation of aniline to nitrobenzene with ammonium peroxydisulfate Ic in H2SO4. Later, the oxidizing species was found to be 112805. ... 

The per(poly)fluoroalkylation of olefins by per(poly)fluoroalkyl chlorides, initiated by ammonium peroxydisulfate and sodium formate, is also reported. The reaction proceeds smoothly in polar aprotic solvents. The presence of functional groups like sodium car-boxylate or sulfonate in the polyfluoroalkyl chloride appears to facilitate the reaction. This reaction represents the first example of the reactivity of per(poly)fluoroalkyl chlorides. 

Very recently, ammonium peroxydisulfate mediated oxidative hydrolysis of a cyclic l,Af -propauo-2 -deoxyguauosiue was also reported by the same research group. The formation of the guanine ring-opened products in this oxidation reaction seems very interesting and appears to be closely related to the mechanism for the point-mutations of DNA with excessive acetaldehyde and crotonaldehyde. 

A mixture consisting of aniline ( 0.2 g) and (lS)-(+) camphorsulfonic acid (3.48 g) was dissolved in 10 ml of water and then treated with five separate portions of 0.1 g of ammonium peroxydisulfate dissolved in 1 ml water. Each successive portion was added when the solution turned from blue to green while the reaction mixture was maintained at 20°C. After the additions were completed the mixture was centrifuged and the product washed with water. The circular dichroism spectrum of the product suspensed in water indicated a molar ellipticity of about 90 x 103 deg-cm2/dmol. Transmission electron micrographs showed that the product had a nanofibrous structure with fiber diameters from 30 to 70 nm and had a length of several hundred nanometers. 

Approximately 2ml of aniline was added to 200ml of 1.0M aqueous (lS)-(+) camphorsulfonic acid solution and then treated with ammonium peroxydisulfate (1.15 g) dissolved in 10ml aqueous solution of 1.0M (lS)-(+) camphorsulfonic acid. The solution of ammonium peroxydisulfate was quickly added over several seconds to the solution of aniline and then stirred for 90 minutes. After the reaction was completed, the precipitate was collected and washed with about 400 ml of an aqueous solution of 0.1 M (lS)-(+) camphorsulfonic acid. Washing was repeated until the filtrate was colorless. 

Polymer nanofiber networks consisting of achiral polyaniline were prepared by Epstein et al. (3) by oxidizing aniline with ammonium peroxydisulfate and then doping with methanesulfonic acid. 

Ammonium Oxalate Ammonium Oxalate Hydrate Ammonium Pentaborate Ammonium Pentaborate Tetrahydrate Ammonium Pentachlorozincate Ammonium Perchlorate Ammonium Peroxydisulfate Ammonium Persulfate Ammonium Phosphate Ammonium Phosphate, Dibasic Ammonium Rhodanate Ammonium Rhodanide Ammonium Silicofluoride Ammonium Stearate Ammonium Sulfamate Ammonium Sulfate Ammonium Sulfhydrate Solution Ammonium Sulfide Ammonium Sulfide Solution Ammonium Sulfite Ammonium Sulfocyanate Ammonium Sulfocyanide Ammonium Tartrate Ammonium Thiocyanate Ammonium Thiosulfate Ammonium Zinc Chloride Amorphous Phosphorus AMS... 

Electropolymerization in acidic media affords free-standing films that are believed to contain varying degrees of cross-linking [267,292,304]. The miscibility of aniline with water allows for a variety of aqueous oxidants, such as ammonium peroxydisulfate, to be used [305]. Chemical polymerization of aniline can also be performed in chloroform through the use of tetrabutyl ammonium periodate [306]. Accordingly, a number of alkyl [301] and alkoxy-substituted [307] aniline derivatives have been chemically polymerized. Unfortunately, functionalization of the aniline nucleus often leads to a decrease in performance in the resulting polymers [308,309]. 

Ammonium peroxydisulfate in acidic medium can oxidize Mn2+ to permanganate, Ce3+ to Ce4+ and Cr3+ to CY (dichromate). The half-reaction for hydrogen peroxide in acid medium is as follows ... 

Ammonium Peroxydisulfate. Mixture explodes on heating above 75°C, grinding in a mortar, or exposure to drops of water or carbon dioxide.5 Calcium Acetylide. Mixture is liable to explode.6... 

Iron Add 2 mL of hydrochloric acid and 0.1 mL of nitric acid to the residue from Substances Not Precipitated by Hydrogen Sulfide (below), cover with a watch glass, and digest on a steam bath for 20 min. Remove the watch glass, and evaporate to dryness. Dissolve the residue in 1 mL of hydrochloric acid, and dilute to 60 mL with water. Dilute 5 mL of this solution to 40 mL with water, add 2 mL of hydrochloric acid, and dilute to 50 mL with water. Add 40 mg of ammonium peroxydisulfate crystals and 10 mL of ammonium thiocyanate TS, and mix thoroughly. Any red color produced within 1 h shall not exceed that produced by 0.033 mg of iron in an equal volume of solution containing the reagents used in the test. 

Aminonocatdicinic acid, 428 2-Aminopyridine, 18 Ammonium peroxydisulfate-Silver... 

ALKOXYCARBONYLATION, QUINONES Ammonium peroxydisulfate-Silver nitrate. 

SYNS AMMONIUM PEROXYDISULFATE PERSULFATE d AMMONIUM (FRENCH)... 

Several phenylselenenylating agents are known. Recently, the oxidation of diphenyldisclcnide with ammonium peroxydisulfate for producing phenylselenium cations was described. This simple procedure offers advantages over other methods15b. 

Quinazoline is quantitatively converted into 2- ert-butylquinazolin-4(3//)-one by treating it in aqueous solution with an excess of pivalic acid and ammonium peroxydisulfate at pH 0-1 in the presence of a catalytic amount of silver nitrate. At pH 5 where the concentration of a covalent hydrate is too small to influence the course of the reaction, it is converted into a mixture of 2-rcrr-butylquinazoline, 4-rc-Tr-butylquinazoline, and 2,4-di-to7-butylquinazoline in a ratio of 4 3 2. ° ... 

Irradiation of quinoxaline in acidic aqueous solution under an oxygen atmosphere gives quinoxalin-5-ol in 80% yield.Quinoxaline is oxidized to quinoxaline-2,3(l//,4//)-dione (14) in 30% yield when treated with ammonium peroxydisulfate." ... 

The Vilsmeier reaction on 2-methylpyrazine has been described in Section IV.2C(7) (717), and King s reaction on 2-methyl(and 23-dimethyl)pyrazine 1,4-dioxide has been described in Section IV.3C(7) (763). Pyrazine with A, jV-dimethyl-acetamide, ammonium peroxydisulfate, and ferrous sulfate gave 2-(A -acetyl-iV-methylaminomethyl)pyrazine (1188). 

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