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Photolysis singlet oxygen

Oil spills RH, ArH, R2S R=0, RCOj, ArOH, R2SO Free radicals direct photolysis singlet oxygen Changes spreading emulsification and toxicity of oil... [Pg.168]

Strong evidence in favor of mechanism B was obtained when it was discovered that singlet oxygen produced chemically by the reaction of hydrogen peroxide and sodium hydrochlorite or from gaseous oxygen excited by an electrodeless discharge yields the same products as the direct photolysis/85-8 ... [Pg.342]

Surface water computed t,/2 = 0.13 h at near-surface of a water body, for direct photochemical transformation, and t,/2 = 0.79 d for direct photolysis in a 5-m deep inland water body with no sediment-water partitioning, t,/2 = 1.2 d with sediment-water partitioning to top cm bottom sediment and t,/2 = 10 h for photosensitized oxygenation with singlet oxygen at near-surface natural water, 40°N, midday, midsummer (Zepp Schlotzhauer 1979) ... [Pg.743]

An investigation148 of 1849 A photolysis of aqueous N20 has shown that not more than 10 % of quanta absorbed by N20 in solution gives other than singlet oxygen atoms. This result conflicts with the gas-phase data147. [Pg.72]

Illustrative Example 16.2 Estimating the Indirect Photolysis Half-Life of Atrazine in a Shallow Pond Reactions with Singlet Oxygen ( 02)... [Pg.655]

Ultraviolet light damages proteins as well as DNA. Residues of Trp, Tyr, His, Cys, and Met are especially susceptible to photolysis, or photooxidation by 02, or by singlet oxygen. Also damaged are unsaturated lipids, porphyrins, flavins, etc. Kynurenic acid (Fig. 25-11) and urocanic acid (Eq. 14-44), an important ultraviolet filter in skin,196 are also decomposed by light. [Pg.1297]

Photolysis of Pt02(PPh3)2 in a nitrogen-saturated chloroform solution results in dissociation of singlet oxygen (equation 452).1548... [Pg.465]

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See also in sourсe #XX -- [ Pg.10 ]



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Oxygen photolysis

Oxygenation singlet oxygen

Singlet oxygen

Singlet oxygen indirect photolysis

Singlet oxygenation

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