Polarised LM of aspirin crystals

Polarised LM of aspirin crystals

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Caption: Aspirin. Polarised light micrograph of aspirin (acetylsalicylic acid) crystals. Aspirin is an analgesic drug for pain relief, inflammation and fever. Aspirin was first synthesised in 1893 by the German chemist Felix Hoffmann. Salicylic Acid (SA) which can be found in the bark of the willow tree had been used against fever for years. SA however is bitter and irritates the stomach. Hoffman's acetyl derivative (aspirin) did not have these drawbacks. Aspirin has anti-blood clotting properties so it is felt it can be used to reduce the risk of strokes and heart attacks. Magnification: x30 at 4x5 inch size.

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Keywords: acetyl salicylic acid, analgesic, analgesic drug, aspirin, biochemical, biochemistry, chemical, chemistry, compound, compounds, crystal, crystals, drug, drug crystal, light micrograph, pharmaceutical, pharmaceutics, plm, salicylic acid

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