Chemistry
Why do we need pure substances ?
Elements, Compounds & Mixtures
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Answer
We need pure substances because of the following reasons :
- Impurities in food, water, or cosmetics can cause allergic reactions, poisoning, or contamination.
- Pure substances have fixed boiling and melting points, making them reliable for calibration and standards. Whereas, mixtures often have variable physical properties.
- Pure substances have a known chemical composition, which is critical when calculating concentrations, dosages, or reactions.
- In industries like pharmaceuticals, electronics, and food production, impurities can ruin a product or make it unsafe.
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