Comparing The Melting Point Of Acetaminophen

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The melting point is a physical property of a compound. As a result of being a physical property, it is fixed at a constant, and thus acts as an ‘index of purity’. By knowing the actual melting point of pure Tylenol (acetaminophen), which is 168°C, we can compare this value to the measured melting point of the crude and purified acetaminophen. The closer the measured melting point of the acetaminophen to the official MSDS certified melting point of acetaminophen, the more pure it is. Additionally, the narrowness of the melting point range acts as an indicator for purity. The greater the range of the melting point, the greater the presence of impurities. For instance, the melting point range of the crude acetaminophen was 156-160°C, whereas

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