Universal pH Paper Strips — pH 1–14, 80-Roll Set

pH is the logarithm of hydrogen ion concentration — and these strips make it visible in three seconds.

pH paper contains acid-base indicator dyes that change colour across the pH scale. This set covers the full range from pH 1 (concentrated acid) to pH 14 (concentrated base) with four colour indicators per strip for improved accuracy. Test soil acidity, water quality, household chemicals, rain acidity, vinegar, lemon juice, baking soda solutions. Essential for any home chemistry setup. Quantitative enough for educational use; qualitative enough for field testing.

• Range: pH 1–14 | Resolution: ±0.5 pH units
• 80-strip roll set (each roll: 5m)
• 4-zone colour comparison chart included
• Moisture-resistant packaging

Every purchase directly funds independent physics research at the Golden Physics Project.