Phosphorus Pentachloride

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4 Terms

1
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What is this a test for?

OH functional group (of alcohols)

2
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What are the observations?

  • steamy white fumes (of HCl gas evolve)

  • when damp blue litmus paper held over fumes it turns red (as HCl is an acidic gas)

3
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What is the equation of the reaction of ethanol with PCl5?

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4
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What else can you do to test for an OH functional group?

  • react sample with sodium

  • releases hydrogen gas (if OH present)

  • when burnt hydrogen produces squeaky pop

<ul><li><p>react sample with sodium </p></li><li><p>releases hydrogen gas (if OH present)</p></li><li><p>when burnt hydrogen produces squeaky pop</p></li></ul><p></p>