Aspirin is made when salicylic acid and acetic anhydride is reacted in the presence of an acid catalyst such as H2SO4. Acetylsalicylic acid (aspirin) and acetic acid is formed. The reaction is an esterification reaction.
The process of making aspirin in pharmaceutical manufacturing involves combining salicylic acid with acetic anhydride in the presence of a catalyst, such as sulfuric acid. This reaction forms acetylsalicylic acid, which is the active ingredient in aspirin. The mixture is then purified, crystallized, and dried to produce the final aspirin product. Quality control measures are implemented throughout the process to ensure the purity and consistency of the aspirin tablets.
Acetylsalicylic acid, better known as aspirin, has an approximate pH of 3 to 4.
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You place the reaction mixture in an ice bath to complete crystallisation because asoirin olecules are quite big and are insoluble in the water, hence forming crystals while the other rmaining substances stay dissolved in water (salicylic acid and acetic acid)
Pulverizing an aspirin tablet is a physical change (it is not a property at all). The chemical nature of the aspirin does not change when it is pulverized.
37.16% is the expected yield in the reaction of salicylic acid and acetic anhydride used to form aspirin.
Aspirin is used as a painkiller, an antipyretic (fever-decreasing treatment) and an anticoagulant (making blood less able to form clots).
Taking the odd aspirin now an then can help your circulation problems as aspirin thins the blood making it easier for blood to travel around the body.
To effectively dissolve aspirin in water, you can crush the aspirin tablets into a fine powder and then stir the powder into warm water until it is fully dissolved. The warmth of the water can help speed up the dissolution process.
I'm not sure, but when we did a lab about it we discovered that using more water to rinse the solution causes very much Aspirin to be lost in the purification process.
Aspirin acts as a blood thinner. Thus making the blood less likely to form clots. Clots are what can cause heart attacks and stroke.
Yes it will be weakly acidic. Aspirin's scientific name is acetylsalicylic acid, with a pKa of 3.5. This would mean that for a solution of 0.1 M aspirin, the pH of the solution would be approximately 2.26.