Drinking water supply is sterilised by using chlorine, together with bromine and/or iodine in the proportion of between 10% to 50% of the chlorine employed; the residual halogen concentration should be about the same as when chlorine only is used. The additional halogen overcomes the danger of...
Elemental ratios of Br/Cl, I/Cl, Br/PB, and Cl/Pb, together with an analysis of chlorine in urban surface materials, support the suggestions that local anthropogenic sources may cause the high bromine and chlorine concentrations observed in urban precipitation while fractionation from an oceanic ...
This photodissociation produces the catalysts Cl and ClO, both of which deplete O3. There is evidence that links the O3 depletion in the Antarctic region to CFCs and other pollutants that carry chlorine and bromine into the stratosphere. Chlorine monoxide (ClO) has been identified as the chief ...
Esther Ortenberg, Benjamin Telsch, in Handbook of Water and Wastewater Microbiology, 2003 3.2.2 Oxidants and their by-products The following are the main oxidants used when treating potable water: 1. Chlorine (Cl2) 2. Chlorine dioxide (ClO2) 3. Chloramine (NH2Cl) 4. Bromine (Br2) 5. Iod...
Bromine and chlorine water are both used for swimming pools. These chemicals come in liquid, powder and tablet forms. Bromine and chlorine work as powerful chemicals to disinfect water. Experiments in chemistry and physics also use these chemicals to und
aR18为氟、氯、溴、甲氧基时,R19为4-甲基哌嗪基-1-氨基甲酰基或1-甲基哌啶基-4-氨基甲酰基; When R18 is the fluorine, the chlorine, the bromine, the methoxy, R19 is 4- methyl pai qin base - 1- amino formacyl or 1- methyl pai ding base - 4- amino formacyl; [translate] ...
EASY TO USE: Simply load your Hydrotools dispenser with chlorine or bromine tablets, and it will float in your pool or spa, saving you time & energy. This means you can focus on enjoying your pool or spa, rather than worrying about its maintenance. LARGE CAPACITY: The dispenser has a ge...
gas- a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely halogen- any of five related nonmetallic elements (fluorine or chlorine or bromine or iodine or astatine) that are all monovalent and readily form negative ions ...
and in the extraction of bromine. Organic chemistry demands much from chlorine, both as an oxidizing agent and in substitution. In fact, chlorine was used as a war gas in 1915 as a choking (pulmonary) agent. Chlorine itself is not flammable, but it can react explosively or form explosive ...
Chlorinated compounds are ubiquitous. However, accumulation of chlorine-containing waste has a negative impact on human health and the environment due to the inapplicability of common disposal methods, such as landfill and incineration. Here we report a