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

 

  • 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
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