Hydrated Lime or Calcium Hydroxide is a dry, white, odorless crystalline powder that is produced by processing Calcium Oxide with water. This refined mineral product has many applications and features in addition to explaining these cases, we will describe the production method, the dangers of this material and how to maintain and store it.
Hydrated Lime
Specification
Alternative (Trade) Names: Hydrated Lime, Slaked lime, Caustic Lime, Calcium Hydroxide
HS Code:25222000
Physical and Chemical Properties
Chemical Formula: Ca(OH)2
Mole Mass: 74,093 gr/mole
Appearance: Solid, white, powder
Density: 2.2 g /cm3
Melting Point: 580 °C
Welding Temperature: Decomposes at 2850 °C
Water Solubility: 1730 mg/l in 20 °C water
Refractive Index: 1.545-1.574
Molecular Mass: 74.09
Description
Applications
Drilling Fluids
Pulp and Paper
Water Treatment
Construction
Agriculture
Hydrated Lime In addition to the specifications that was introduced above, has many properties and applications in different industries, the following are the most important ones.
- Hydrated Lime is used to strengthen the road surface.
- It is widely used in water treatment, to adjust the pH of water and remove impurities. Activated Hydrated Lime (AHL) has a high performance in water treatment.
- This mineral can be used as a filler in asphalt to improve its resistance at high temperatures.
- Calcium Hydroxide is used in the construction of various types of chimneys, gas and steam passage pipes in order to eliminate harmful acid gases for the environment, especially sulfur dioxide and hydrogen chloride.
- Calcium Hydroxide is used in food industry in both dry and liquid forms.
- This mineral with high purity is used in the production of chemicals.
- Caustic Lime can be used to meet the additive needs of the oil industry.
- Hydrated Lime is used in the construction industry to produce building materials.
Application of Hydrated Lime in the drilling industry
Hydrated Lime is also used in many industries, including the oil and gas industry. The chemical property of this solution has a neutralizing effect and is used as an additive in drilling fluids. The use of Hydrated Lime in drilling fluids is to increase its pH level, which creates additional alkalinity Therefore, in drilling operations, this material is used as a ventilation agent. Adding this material to drilling mud makes it possible to control toxic substances such as H2S as well as CO2.
Application of Hydrated Lime in water treatment
The use of Hydrated Lime is very common in water treatment. It is used to reduce the pH of drinking water, remove heavy metals and impurities in the water. In addition, the use of Calcium Hydroxide is a cost-effective way to treat sewage sludge and animal waste. The applications and advantages of this mineral in water treatment are summarized in the following section.
Flocculation: By forming fine particles, it forms a solid substance and creates cleaner water after settling
PH correction: By adding Hydrated Lime to water, its pH level is neutralized and acids are eliminated. This also helps maintain the water pipes.
Flocculation: By forming fine particles, it forms a solid substance and creates cleaner water after settling.
PH correction: By adding Hydrated Lime to water, its pH level is neutralized and acids are eliminated. This also helps maintain the water pipes.
Pure bioremediation: Hydrated Lime is very useful for accelerating the process of natural decomposition, neutralizing odors and drying bio-sludge materials.
Calcium Hydroxide is used not only for municipal water treatment, but also for home and farm use. For example, it is used in farm ponds, effluent ponds and waste pits. In general, the use of Hydrated Lime reduces odor, modifies pH, kills bacteria, speeds up decomposition, absorbs phosphate and heavy metals, and kills algae.
