Chlorine monoxide Subject

Chlorine heptoxide is more stable than either chlorine monoxide or chlorine dioxide however, the CX C) detonates when heated or subjected to shock. It melts at —91.5°C, bods at 80°C, has a molecular weight of 182.914, a heat of vapori2ation of 34.7 kj/mol (8.29 kcal/mol), and, at 0°C, a vapor pressure of 3.2 kPa (23.7 mm Hg) and a density of 1.86 g/mL (14,15). The infrared spectmm is consistent with the stmcture O CIOCIO (16). Cl O decomposes to chlorine and oxygen at low (0.2—10.7 kPa (1.5—80 mm Hg)) pressures and in a temperature range of 100—120°C (17). It is soluble in ben2ene, slowly attacking the solvent with water to form perchloric acid it also reacts with iodine to form iodine pentoxide and explodes on contact with a flame or by percussion. Reaction with olefins yields the impact-sensitive alkyl perchlorates (18). 

Chlorine heptoxide is more stable than either chlorine monoxide or chlorine dioxide however, the CI2O7 detonates when heated or subjected to shock. It melts at —9l.5°C, boils at 80 0, has a molecular weight of 182 914. Tt is soluble in benzene, slowly attacking the solvent with water to form perchloric acid it also reacts with iodine to form iodine pentoxide and explodes on contact with a flame or by percussion, Reaction with olefins yields the impact-sensitive alkyl perchlorates. 

Tetravalent lead is obtained when the metal is subjected to strong oxidizing action, such as in the electrolytic oxidation of lead anodes to lead dioxide, Pb02 when bivalent lead compounds are subjected to powerful oxidizing conditions, as in the calcination of lead monoxide to lead tetroxide, Pb O or by wet oxidation of bivalent lead ions to lead dioxide by chlorine water. The inorganic compounds of tetravalent lead are relatively unstable eg, in the presence of water they hydrolyze to give lead dioxide. 

Emissions from hazardous waste combustors are regulated under two statutory authorities RCRA and the CAA. The MACT standards set emission limitations for dioxins, furans, metals, particulate matter, total chlorine, hydrocarbons/carbon monoxide, and destruction and removal efficiency (DRE) for organics. Once a facility has demonstrated compliance with the MACT standards by conducting its comprehensive performance test (CPT) and submitting its notification of compliance (NOC), it is no longer subject to the RCRA emission requirements with a few exceptions. RCRA-permitted facilities, however, must continue to comply with their permitted emissions requirements until they obtain modifications to remove any duplicative emissions conditions from their RCRA... 

Similar sets of reactions may readily be written down for carbon monoxide/oxygen, acetylene/oxygen, hydrogen/chlorine, methane/ oxygen, or ammonia/oxygen flames, and are subject to the same... 

When 2,4-D was heated to 900°C, carbon monoxide, carbon dioxide, chlorine, hydrochloric acid and oxygen were produced (Kennedy et al., 1972,1972a). Total mineralization of 2,4-D was observed when a solution containing the herbicide and Fenton s reagent (Fe + and hydrogen peroxide) was subjected to UV light (k = 300 00 nm). One intermediate compound identified was oxalic acid (Sun and Pignatello, 1993). Emits very toxic chloride fumes when heated to decomposition (Lewis, 1990). 

---