Halogen-releasing compounds

HALOGENS, HYPOHALOGENITES HALOGEN RELEASING COMPOUNDS 21.2.2a. Sodium hypochlorite solution ClNaO NaOCl... 

Laturnus F (1995) Release of volatile halogenated organic-compounds by unialgal cultures of polar macroalgae. Chemosphere 31 3387-3395... 

Quench elbow and secondary scrubber. This system is used to remove acid gases formed from the catalytic oxidation of halogenated organic compounds. The operation of the secondary scrubber is identical to that of the primary scrubber with the exception of a recirculation cooler that maintains scrubber exit gas temperature at 120°F. The secondary scrubber has a constant liquid blowdown that is collected in holding tanks and tested for agent prior to release. 

Such processes lead to the formation of adsorbable halogenated organic compounds (AOX) in high concentrations. Typical concentrations found in a continuous antifelt treatment are shown in Table 4. The high dissolved organic carbon (DOC) determined in the baths is one of the sources for the formation of high concentrations of chlorinated compounds. The formation of chlorinated products is the result of chemical reactions directly with the fiber, with organic compounds released from the fibers, and with added auxiliaries. 

Latumus F (1995) Release of Volatile Halogenated Organic Compounds by Unialgal Cultures of Polar Macroalgae. Chemosphere 31 3387... 

FIGURE 26.2 Spearman ranking order correlation between time to peak heat release rate (TTPHRR) and single wire burn. (From Cogen, J.M. et al., Assessment of flame retardancy in polyolefin-based non-halogen FR compounds, In Proceedings of the 53rd IWCS/Focus International Wire and Cable Symposium, 2004, pp. 185-190.)... 

Some naturally occurring organohalogen compounds are produced in massive quantities. Forest fires, volcanoes, and marine kelp release up tx>SmiUimi tons oTCHj,Cl pt r yejir. for example, while annual industrial emissions total only about 26,000 tons. A detailed examination of one species of Okinawan acorn worm in a 1 km study urea showed that tl>ey released nearly IQO pounds per day of halogenated phenols, compounds previously thought to be nonnatural pollutants. 

Geschwend P. M., MacFarlane J. K., and Newman K. A. (1985) Volatile halogenated organic compounds released to seawater from temperate marine macroalgae. Science 227, 1033-1035. 

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