Calcium hydroxide, also known as hydrated lime, is a chemical compound with the chemical formula Ca(OH)₂. This chemical exists in the form of a white crystalline powder or as a solution in water (called lime water) and is considered one of the most important compounds of calcium.
Technical Characteristics
| Chemical Formula | Ca(OH)2 |
| Other names | Slaked lime, Milk of lime, Calcium(II) hydroxide, Pickling lime, Hydrated lime, Portlandite, Calcium hydrate, Calcium dihydroxide |
| CAS Number | 1305-62-0 |
| Molecular mass | 74 g/mol |
| Solubility | Soluble in glycerol and acids. Insoluble in ethanol. |
| Appearance | white powder |
Applications
- Food industry
- Water and wastewater treatment
- Paper and pulp industry
- Agriculture
- Medicine
- pH regulator
- Ammonia gas production
Environmental impact of Calcium hydroxide
Calcium hydroxide exists as a natural substance in nature and does not have negative effects on the environment. However, when using it in water treatment or in agriculture, the correct amount must be used to avoid excessive accumulation of calcium in the environment.
Safety Measures and Regulations for Handling Calcium hydroxide
It is recommended to use chemical resistant gloves and protective glasses. In case of working with powder, it is also recommended to use a breathing mask.
Proper storage: Calcium hydroxide should be stored in tight containers in a dry and cool environment and avoid contact with moisture.
Packing
This chemical is available in 25 kg bags.