Hydrated Lime
Used in the chemical industries and road construction for soil stabilization. Other uses include : Water treatment, Sugar refining, De hairing of hides and Lime washing.
- Production
Calcium hydroxide or hydrated lime is produced by adding water to unslaked lime according to the reaction :
CaO + H2O = Ca (OH)2
During this process heat is released and the unslaked lime doubles its volume. Hydrated lime is also known as slaked lime and is very fine dry powder.
- Uses of Hydrated Lime
- Metallurgical
- Applications
- Sugar Refinery
- Water Treatment
- Bleach Manufacture
- Leather Tanning
- Salt Production
- Uses of Hydrated Lime
- Sewage Treatment
- Sterilization
- Fertilizer Manufacture
- Lime Mortar
- White Washing
- Road Construction
- Safety Precautions
- Hydrated lime is irritating to the eyes and skin: Wear full personnel protective equipment. (Head hood, Goggles, cotton work suit, rubber & polythene globes and leather boots)
- In case contact with eyes, rinse immediate with plenty of water seeks medical attention. Wash off any hydrated lime adhering to the skin with water.
- Do not inhale hydrated lime with dust. In case of inhalation, wash the nose & throat with water. Seek medical attention if necessary not feeling well.
- In the event of ingestion, do not induce vomiting. Drink copious quantities of water. Seek medical attention if feelings of discomfort persist.
- In case of spillage or release, first contain the spillage. Keep the material dry. Remove material mechanically where possible. Avoid contamination of watercourses & drains.
- Specifications
| SPECIFICATIONS | CALCIUM HYDROXIDE | |||||||||
| CALCIUM HYDROXIDE | Ca(OH)2 (%) | 96 | 94 | 92 | 90 | 85 | 80 | 75 | 70 | 65 |
| Active Calcium Oxide | CaO (%) | 73 | 71 | 69.5 | 68 | 64 | 60 | 56 | 52 | 49 |
| ACID INSOLUBLES (Max.) | SiO2 (%) | 0.1 | 0.2 | 0.6 | 1 | 1.5 | 3 | 4 | 4.5 | 6 |
| Magnesium Oxide | MgO (%) | 0.5 | 0.6 | 0.8 | 1 | 1 | 1.25 | 1.5 | 2 | 2 |
| Alumina | AL2O2 | Traces | Traces | Traces | Traces | Traces | Traces | Traces | Traces | Traces |
| Iron | Fe2O2 | Traces | Traces | Traces | Traces | Traces | Traces | Traces | Traces | Traces |
| Mesh | BSS | 500 | 400 | 300 | 250 | 200 | 200 | 150 | 150 | 150 |