The_Gender_Changer
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Cleaning Aspirin
Here a idea to cleaning Aspirin Tabletts.
Crush 50 500 mg Aspirin Tabletts with a motar to a fine powder.
Heat 1000 ml concentrated 97-99% ethanol in a beaker dissolve the powder in the ethanol, stirr a few minutes and than the mixture is filtered two
times with a very fine filter paper
and than the ethanol is careful boiled out,
stirred with a glass stirring-rot and the slick is stirred until the acetylsalicylic acid are dryed.
Heat the mixture that the acethylsalicylic acid not compose to much.
I don`t know the procedure are correct and what for impurties mixed into the tabletts ?
The acethylsalicylic acid should be useful to prepare picric acid [Picrates].
[Edited on 20-2-2005 by The_Gender_Changer]
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Reverend Necroticus Rex
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Location: Right behind you.......
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The tablets you want are the dirt cheap (USP, or BP, if you are in the UK or US)
ones, don't buy dispersible, or buffered aspirin.
Crush the tablets, and extract with cold ethyl alcohol, isopropanol or methanol, then filter through a coffee filter or filter paper, discard the
solids left in hte filter, as they are tablet binders, then evaporate the alcohol to give aspirin.
Remember picric acid is toxic, not good to come into skin contact with, and stains EVERYTHING yellow.
The sun is shining on a brand new day
Blackened corpses burn where they were slain
Self-flagellation prompts him to confess, Bless me father, for I made this mess.
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Jedi
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Registered: 25-7-2004
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Why not use acetone??
| Quote: | Originally posted by The_Gender_Changer
Here a idea to cleaning Aspirin Tabletts.
Crush 50 500 mg Aspirin Tabletts with a motar to a fine powder.
Heat 1000 ml concentrated 97-99% ethanol in a beaker dissolve the powder in the ethanol, stirr a few minutes and than the mixture is filtered two
times with a very fine filter paper
and than the ethanol is careful boiled out,
stirred with a glass stirring-rot and the slick is stirred until the acetylsalicylic acid are dryed.
Heat the mixture that the acethylsalicylic acid not compose to much.
I don`t know the procedure are correct and what for impurties mixed into the tabletts ?
The acethylsalicylic acid should be useful to prepare picric acid [Picrates].
[Edited on 20-2-2005 by The_Gender_Changer] |
Aspirin is very soluble in acetone you could also use it.
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