Decay constant for singlet oxygen in the solvent:

Ethanol/Water (95:5)

Wilkinson, F.
Singlet Oxygen, Reactions with Organic Compounds and Polymers, B. Ranby and J.F. Rabek (eds.), John Wiley & Sons, New York, N.Y., 1976, p.27-35

Lifetime is 5 x 10–6 s
Decay rate is 2 x 105 s–1

Experimental method: pulsed laser photolysis, triplet beta-carotene decay used as prob
Sensitizer is An, Q = Car.

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