B. N. Minerals

Hydrated Lime Powder


Hydrated Lime Powder

We export and supply high quality Hydrated Lime Powder that is fine free flowing powder. We make available the Hydrated Lime Powder in various specifications. The Hydrated Lime Powder distributed by us is pure and free from any unwanted ingredients. It is extensively used in various industrial and chemical applications.

Manufacturing Process :
  • It is a colorless crystal or white powder, and is obtained when calcium oxide is mixed, or "slaked" with water.
  • It can also be precipitated by mixing an aqueous solution of calcium chloride and an aqueous solution of sodium hydroxide.
  • CaO + H2O → Ca(OH)2

Used As :
  • A flocculent, in water and sewage treatment and improvement of acid soils
  • An ingredient in whitewash, mortar, and plaster
  • An alkali used as a lye substitute in no-lye hair relaxers
  • A chemical depilatory agent found in Nair
  • A calcium supplement in mineral fortified baby formulas
  • In Bordeaux mixture to neutralize the solution and form a long lasting fungicide
  • In the reef aquarium hobby for adding bio-available calcium in solution for calcium-using animals such as algae, snails, hard tube worms, and corals (often referred to as Kalkwasser mix), and also to increase the alkalinity of the water
  • In the tanning industry for neutralization of acid, the liming of hides and skins and the flocculation of wastewater
  • In the petroleum refining industry for the manufacture of additives to oils (salicatic, sulphatic, fenatic)
  • In the chemical industry for manufacture of calcium stearate
  • In the food industry for processing water (for alcoholic and soft drinks)
  • Used in the separation of sugar from sugar cane in the sugar industry
  • Used in the processing of Norwegian lutefisk. Dried cod fish is soaked in a mixture of slaked lime and soda to produce a soft-fleshed fish fillet that is steamed or baked and served with potato leaves
  • For clearing a brine of carbonates of calcium and magnesium in the manufacture of salt for food and pharmacopoeia
  • In Native American and Mesoamerican cooking, calcium hydroxide is called "cal". Corn cooked with cal becomes nixtamal which significantly increases its nutrition value, and is also considered tastier and easier to digest.
  • In chewing betel nut or coca leaves, calcium hydroxide is usually chewed alongside to keep the alkaloid stimulants chemically available for absorption by the body
  • Similarly, Native Americans traditionally chewed tobacco leaves with calcium hydroxide derived from burnt shells to enhance the effects
  • In Chinese cuisine, for making century eggs
  • In dentistry, it is used as dressing in paste form used for anti-microbial effect during a dental root canal procedure. Calcium hydroxide is known to have a strong anti-microbial effect and is a bone-regeneration stimulant
  • It has been proposed to add it to sea water in great quantities to reduce atmospheric CO2 and fight the greenhouse effect However, since the production of calcium oxide (the main starting material of calcium hydroxide) involves calcination of limestone, which involves great deal of heat, it would be not very productive if fossil fuel is used in the production process. The calcination of limestone in itself releases the same amount of carbon dioxide as calcium hydroxide will absorb, so this method is at best carbon neutral
  • In the production of metals, lime is injected into the waste gas stream to neutralize acids such as fluorides and chlorides prior to being released to atmosphere
  • Used in relaxers for permanently straightening very curly hair

Applications :
  • Cement
  • Paint
  • Fertilizers
  • Ceramic
  • Glass
  • Chemical industries
  • Fly Ash Brick

Attributes :
  • Pure
  • Natural
  • Free from impurities
  • Best chemical reagent
  • Reacts violently to acids
  • Turns milky when carbon dioxide is passed
  • Colorless crystal
  • Dry


Physical Properties

Partial Pressure 101kPa
Iupac Name Calcium Hydroxide
Other Names Cal, calcium(II) hydroxide, hydrated lime, milk of lime, pickling lime, slaked lime
Molecular Formula Ca(OH)2
Molar Mass 74.093 g/mol
Density 2.211 g/cm3, solid