Subject: Chemistry
Book: General Chemistry
pH indicators are substances that change color depending on the acidity or basicity of a solution. Common indicators include litmus, phenolphthalein (colorless in acid, pink in base), and bromothymol blue. Each indicator has a characteristic pH range where the color change is most apparent. Indicators are useful for rapid pH estimation or as endpoints in acid–base titrations.
Which element is primarily used in stainless steel?
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