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Topic: ascorbic acid-Na ascorbate color  (Read 4013 times)

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Offline leosilv

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ascorbic acid-Na ascorbate color
« on: July 31, 2012, 01:39:02 AM »
Sodium ascorbate has a brownish-yellow color and ascorbic acid is white. Could this be due to some contamination of Na ascorbate bottle? May I have this explained? Thanks.
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Offline discodermolide

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Re: ascorbic acid-Na ascorbate color
« Reply #1 on: July 31, 2012, 01:50:40 AM »
Quote from: leosilv on July 31, 2012, 01:39:02 AM
Sodium ascorbate has a brownish-yellow color and ascorbic acid is white. Could this be due to some contamination of Na ascorbate bottle? May I have this explained? Thanks.


How old is it?
I would say it should be colourless (white).
Buy a new bottle or re-crystalise the material you have.
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Offline leosilv

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Re: ascorbic acid-Na ascorbate color
« Reply #2 on: August 25, 2012, 02:24:04 AM »
Quote from: discodermolide on July 31, 2012, 01:50:40 AM
Quote from: leosilv on July 31, 2012, 01:39:02 AM
Sodium ascorbate has a brownish-yellow color and ascorbic acid is white. Could this be due to some contamination of Na ascorbate bottle? May I have this explained? Thanks.


How old is it?
I would say it should be colourless (white).
Buy a new bottle or re-crystalise the material you have.



I apologize for coming back so late. Thanks for your reply. In fact , treating ascorbate with DMSO the brownish color is solubilized, leaving a whith powder. Now, I
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