Oxidizing agents, acetal stability

Acetic acid resists to a high degree the action of oxidizing agents. Its stability under these circumstances is so great that it is often used as a solvent for substances which are to be oxidized by chromic acid. 

The iron(II) diimine complex (30) displays unusual stability towards acids, alkali, reducing and oxidizing agents and has been termed quasi-aromatic .44 Complex (30) undergoes bromination in acetic acid to give the dibromo analogue (31) (equation 20).45... 

Peroxycarboxylic Acids (1), R(C03H)n (R=alkyl, cycloalkyl, aryl, or heterocyclic n=l or 2) Acid or base hydrolysis with rate decreasing with mw increase dil NaOH decomposes acids yielding O2 dimeric as solids H-bonded in soln pure liq and vap state most powerful oxidizing agents of all peroxides, decompd by irradiation Generally not shock sens deton on heating peroxy formic and acetic acids can explode at —20° stability increases as mw increases... 

Acetic acid, cobalt(2+) salt Bis(acetato)cobalt Cobalt acetate (Co(OAc)2) Cobalt diacetate Cobalt(2+) acetate Cobalt(ll) acetate Cobaltous xetate Cobaltous diacetate EINECS 200-755-8 HSDB 997 NSC 78410, Bleaching agent and drier in lacquers esterification and oxidation catalyst, foam stabilizer in beers. Pink crystals freely soluble in H2O, [Tetrahydratej red crystals d = 1.705 becomes anhydrous at 140 soluble in H2O, alcohols, pentyl acetate. 

An alternative way to obtain end-group stabilized homopolymers is the etherification or total acetalization of the semi-acetal end groups. Alkylating agents, such as dimethyl sulfate or ortho-formic acid ester, epoxy alkanes, such as ethylene oxide or propylene oxide, and acetals in the presence of Lewis acids, or cation exchange resins are suitable. End-group etherified homopolymers have the additional advantage of alkali stability over esterified polymers, known also in copolymers blocked by comonomer components. 

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