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Old 1 Mar 2005, 10:07 AM   #1 (permalink)
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Dot pt help!!

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hey guys, does anyone have any info on the following dot pt:
analyse info frmo secondary sources to asses the use of neutralisation reactions as a safety measure or to minimise damage in accidents or chemical spills??
Any help would b much appreciated...ive tried to find it for ages!!
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Old 1 Mar 2005, 10:56 AM   #2 (permalink)
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G'day,

This should help you our and get you in the right track.

Q). Analyse info from secondary sources to assess the use of neutralisation reactions as a safety measure or to minimise damage in accidents or chemical spills?

  • Neutralisation reactions are used to minimise damage in accidents or chemical spills because it is necessary to neutralise the spill or the acids or bases. Most acids and bases pose a serious risk to the environment, particularly if they enter water systems (such as drains, river) and most are very corrosive.
  • A widely used substance to neutralise acidic spills.
  • This is because it is a stable solid and is easily and safely handled as well as stored. This is very important, since you do NOT want to be transporting ANOTHER liquid (to avoid another possible spill)
  • It is a cheap chemical and readily available.
  • When using sodium carbonate to neutralise basic wastes, it is controlled with the use of hydrochloric acid or sulfuric acid.
  • However, sodium hydrogencarbonate is readily available for neutralising spills as well. The reasoning for this is because it is safe and easy to handle itself and there is no great problem if excess is used.
  • It is an amphiprotic substances, meaning that as it ionisies it can act as either a (Lowry-Bronstead) acid or base, meaning that it can neutralise acidic and basic chemical spills.


Any more questions, just post them in here.

Cheers,
George
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