Hydrated Lime (Calcium Hydroxide) is a strong alkaline compound used to increase pH, adjust alkalinity, and reduce water hardness by precipitating calcium and magnesium salts.
Hydrated Lime
Product Name:
Hydrated Lime
Chemical Formula:
Ca(OH)₂
Area of usage:
- pH correction in raw water treatment
- Hardness reduction via softening process
Recommended Dosage:
- 20–200 ppm depending on raw water alkalinity and hardness
Technical Data Summary:
- Appearance: Fine white powder
- pH: ~12.5 (saturated solution)
- Solubility: Slightly soluble in water (1.2 g/L at 25°C)
- Stability: Stable; reacts with CO₂ from air forming CaCO₃
- Shelf Life: 1 year
Why Choose This Product / Key Benefits:
- Economical and effective for pH adjustment
- Provides alkalinity buffering capacity
- Helps remove heavy metals and impurities
FAQs:
Q: Is hydrated lime safe in drinking water?
A: Yes, within regulated limits. It is often used in water softening.
Q: Does it increase TDS?
A: Yes, but also helps precipitate and remove hardness salts.