An acid-base indicator is a substance that changes color as the pH of the solution changes. Indicators work because they are weak acids which when in solution, exist in equilibrium with their ...

A legacy of acid rain has acidified forest soils throughout the northeastern US, lowering the growth rate of trees. In an attempt to mitigate this trend, in 1999 scientists added calcium to an ...

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DENIOS has introduced the CHEMSORB Acid Neutralizer, a lightweight silica-free product to absorb and neutralize acid spills. This loose absorbent includes color change technology, which indicates when ...

Tough emission controls have dramatically reduced the amount of toxic sulfate particles in air, but at least in the Southeast United States, they haven't reduced the acidity of the health-threatening ...

Engine oil degrades over time when exposed to heat, oxygen, friction, and pollutants. This degradation diminishes the oil's ability to protect the engine and, if not corrected, can cause engine damage ...