Which pH range is corrosive?

Which pH range is corrosive?

• A. 1-7
• B. Neutral = 7
• C. 7-14
• D. 0-14

Answer: (A)

Corrosivity is about how aggressively a chemical can damage tissue and materials. Acids, which have a pH below 7, are typically corrosive because they react with metals and organic matter to cause rapid damage. The lower the pH, the stronger the acidity and the greater the potential for corrosion. Neutral solutions (pH around 7) do not cause acid-based corrosion, and basic solutions (above 7) can be corrosive in their own right but are a different category. For this item, the corrosive range is the acidic side of the scale, from strong acids up to just before neutral.

Corrosivity is about how aggressively a chemical can damage tissue and materials. Acids, which have a pH below 7, are typically corrosive because they react with metals and organic matter to cause rapid damage. The lower the pH, the stronger the acidity and the greater the potential for corrosion. Neutral solutions (pH around 7) do not cause acid-based corrosion, and basic solutions (above 7) can be corrosive in their own right but are a different category. For this item, the corrosive range is the acidic side of the scale, from strong acids up to just before neutral.