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Peroxide Salts

Water-soluble peroxide salts, such as ammonium or sodium persulfate, are the usual initiators. The initiating species is the sulfate radical anion generated from either the thermal or redox cleavage of the persulfate anion. The thermal dissociation of the persulfate anion, which is a first-order process at constant temperature (106), can be greatly accelerated by the addition of certain reducing agents or small amounts of polyvalent metal salts, or both (87). By using redox initiator systems, rapid polymerizations are possible at much lower temperatures (25—60°C) than are practical with a thermally initiated system (75—90°C). [Pg.168]

The copper-chelating abihty of sahcylaldoxime has been used to remove copper from brine in a seawater desalination plant effluent. A carbon—sorbate bed produced by sorption of the oxime on carbon proved to be extremely effective in the continuous process (99). In another apphcation, the chelating abihty of sahcylaldoxime with iron and copper was used to stabilize bleaching powders containing inorganic peroxide salts (100). [Pg.508]

SYNS CARBAMIDE PEROXIDE GLY-OXIDE HYDROGEN PEROXIDE CARBAMIDE HYDROPERIT HYPEROL ORTIZON PERCARBAMIDE PERHYDRIT PERHYDROL-UREA THENARDOL UREA DIOXIDE UREA HYDROGEN PEROXIDE pOT) UREA HYDROGEN PEROXIDE SALT UREA HYDROPEROXIDE UREA PEROXIDE pOT)... [Pg.745]

The (Np02)202 peroxide has a green color and has been prepared by addition of H2O2 to a concentration of 0.02-0.7M to neutral (pH 6) 1.2T0 M solution of Np(V) cooled to 1°C [98]. With the addition of NaOH, (Np02)202 transforms into double peroxide salts of Np(V) and Na. [Pg.90]

A.A. Oswald, F. Noel, and A.J. Stephenson, Organic sulfur compounds. V. Alkylammonium thiolate and peroxide salts possible intermediates in amine-catalyzed oxidation of mercaptans by hydroperoxides, J. Org. Chem. 1961, 26, 3969-3974. [Pg.675]

Deprotonation of H2O2 gives [OOH] and loss of a second proton yields the peroxide ion, [02]. In addition to peroxide salts such as those of the alkali metals (see Section... [Pg.444]

Na -t 02 = Na202, sodium peroxide, a peroxide salt, gives off heat and a corrosive liquid, sodium hydroxide, and releases oxygen when in contact with water... [Pg.89]

Class 5.2 materials are organic peroxides. Unlike peroxide salts, which contain metals, these are organic compounds that contain carbon in their formula. These materials contain oxygen in the bivalent -0-0- stmcture and may be considered a derivative of hydrogen peroxide. The stmcture and molecular formula for hydrogen peroxide are shown in Eigure 7.3. [Pg.245]

Peroxide salts should not be confused with organic peroxides. Peroxide salts contain a metal and a peroxide radical. Organic peroxides are made up of nonmetal hydrocarbon radicals and the peroxide functional group. Peroxide salts are water-reactive and give off oxygen, evolve heat, and produce a corrosive liquid in contact with water. [Pg.252]

When in contact with water, some peroxide salts may produce which of the following hazards ... [Pg.264]

Halogens, peroxide salts, oxysalts, organic peroxides... [Pg.429]

Binary Oxides (Metal Oxides) Peroxide Salts Hydroxide Salts Oxysalts Cyanide Salts Nonmetal Compounds Physical and Chemical Terms Review Questions for Chapter 2... [Pg.12]

Chapter 7 Oxidizers Class 5.1 Oxidizers Oxysalts Peroxide Salts Inorganic Acid Oxidizers Other Oxidizer Componnds Incidents... [Pg.14]


See other pages where Peroxide Salts is mentioned: [Pg.224]    [Pg.225]    [Pg.869]    [Pg.97]    [Pg.67]    [Pg.1931]    [Pg.136]    [Pg.381]    [Pg.239]    [Pg.239]    [Pg.970]    [Pg.971]    [Pg.179]    [Pg.66]    [Pg.89]    [Pg.89]    [Pg.245]    [Pg.252]    [Pg.253]    [Pg.387]    [Pg.302]    [Pg.1148]    [Pg.125]    [Pg.126]    [Pg.126]    [Pg.278]    [Pg.285]   
See also in sourсe #XX -- [ Pg.89 , Pg.252 ]




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