Corrosive substance due to their capabilities of dissolving greases, proteins or mineral deposits such as limescale inside water pipes. In chemical uses, high chemical reactivity is often desirable, as the rates of chemical reactions depend on the activity (effective concentration) of the reactive species. For instance, catalytic sulfuric acid is used in the alkylation process in an oil refinery: the activity of carbocations, the reactive intermediate, is higher with stronger acidity, and thus the reaction proceeds faster. Once used, corrosives are most often recycled or neutralized. However, there have been environmental problems with untreated corrosive effluents or accidental discharges. Corrosive substance A
2011 Super League season results at Millennium Stadium, as part of Magic Weekend<br> B. All St Helens home games in 2011 to be played at Halton Stadium<br> C. Game to be rescheduled for later date, due to Wigan's involvement in the 2011 World Club Challenge 2011 Super League season results This is a list of the 2011 Super League season results. Super League is the top-flight rugby league competition in the United Kingdom and France. The 2011 season started on 12 February, with the Magic Weekend at the Millennium Stadium in Cardiff, and ended on 8 October with the 2011 Super League Grand Final. The