Kyx
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#1
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#1
what are some factors that may affect the purity of a substance (i.e. aspirin) and how these factors influence the purity of that substance (aspirin) that is produced.

I know that re-crystallisation would create a purer product but I need to know how the aspirin can get impurities in the first place

Regards
Kyx

P.S I hate Chemistry
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Kyx
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Some factors I have got are:
  • Decomposition products (hydrolysis)
  • a filler may be added to make tablet bigger
I need a lot more!
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Pigster
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Reactions making chemicals may be equilibria and hence reagents remain.

Coproducts form.

Unexpected side reactions may happen.

One of the regents may have been in excess.
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Kyx
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#4
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(Original post by Pigster)
Reactions making chemicals may be equilibria and hence reagents remain.

Coproducts form.

Unexpected side reactions may happen.

One of the regents may have been in excess.
thx!

I think that may be enough!

(repped)
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Kyx
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(Original post by Pigster)
Reactions making chemicals may be equilibria and hence reagents remain.
could u possibly expand on this pls?
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Pigster
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Equilibria involve reagents turning into products which turn back into the reagents.

The equilibrium mixture will contain both reagents and products, i.e. the reaction does not go to completion, i.e.(part 2) not all of the reagents end up as products.
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Kyx
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(Original post by Pigster)
Equilibria involve reagents turning into products which turn back into the reagents.

The equilibrium mixture will contain both reagents and products, i.e. the reaction does not go to completion, i.e.(part 2) not all of the reagents end up as products.
PRSOM
thx for that
I needed it :lol:

that explains a lot
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Pigster
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I am too old to know about such things as PRSOM.

I had to look it up : (
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Kyx
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(Original post by Pigster)
I am too old to know about such things as PRSOM.

I had to look it up : (
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reincarnate
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#10
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can someone tell me a few bullet points that affect the purity of aspirin
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Pigster
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#11
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I don't think bullet points will affect the purity of aspirin.

I also can't remember what PRSOM means anymore.
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Kyx
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#12
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(Original post by Pigster)
I don't think bullet points will affect the purity of aspirin.

I also can't remember what PRSOM means anymore.
LOL
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