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The near ultraviolet absorption spectrum of chlorine nitrite (ClONO) has been quantitatively investigated over the wavelength range 230‐400 nm at 231°K. An absorption maximum was observed at 290 nm with a cross section of 1.5 × 10 −18 cm². The calculated lifetime against photodissociation for ClONO in the atmosphere is 2 to 3 minutes. The large photolysis rate indicates that ClONO does not play a significant role in the stratosphere as a temporary holding tank for chlorine.
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Molina et al. (1977) studied this question.
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