Phenol Red tablets are pre-measured reagents used for quickly and accurately testing the pH (acidity/alkalinity) of water, especially for swimming pools, spas, and aquariums, turning colors (typically yellow for acidic, red for neutral, purple/blue for alkaline) to indicate pH levels, generally between 6.8 and 8.4, ensuring chlorine works effectively and maintaining bather comfort. These rapid-dissolve tablets are packaged for freshness, easy handling, and used in visual test kits and comparators, providing simple, reliable water quality checks.
How they work
- Color Indicator: Phenol Red changes color as the pH of the water sample changes.
- Rapid Dissolve: Designed to dissolve quickly in water, providing fast results.
- Pre-measured: Eliminates the need for messy liquid drops, offering precise dosing.
Common Uses
- Pools & Spas: Essential for maintaining optimal pH (around 7.0-7.4) for effective chlorine sanitization and swimmer comfort.
- Aquariums: Used to monitor water balance for fish health.
- Water Testing Kits: Used with comparator blocks or photometers to read specific pH values.
Key Benefits
- Accuracy: Provides reliable pH readings for water chemistry.
- Convenience: Easy to use and handle, ideal for both beginners and professionals.
- Safety: Blister-packed for hygiene and less risk than liquid reagents.