Calcium oxide (CaO), commonly known as quicklime or burnt lime, is a widely used chemical compound. It is a white, caustic, alkaline crystalline solid at room temperature. The broadly used term lime connotes calcium-containing inorganic materials, in which carbonates, oxides and hydroxides of calcium, silicon, magnesium, aluminium, and iron predominate, such as limestone.
Calcium oxide is usually made by the thermal decomposition of materials such as limestone, that contain calcium carbonate (CaCO3; mineral calcite) in a lime kiln. This is accomplished by heating the material to above 825 °C (1,517 °F), a process called calcination or lime-burning, to liberate a molecule of carbon dioxide (CO2); leaving quicklime. The quicklime is not stable and, when cooled, will spontaneously react with CO2 from the air until, after enough time, it is completely converted back to calcium carbonate
Uses quick lime
Quicklime is relatively inexpensive. Both it and a chemical derivative (calcium hydroxide) are important commodity chemicals.
Quicklime produces heat energy by the formation of the hydrate, calcium hydroxide, by the following equation:[3]
CaO (s) + H2O (l) Ca (OH) 2 (aq) (ΔHr = −63.7 kJ/mol of CaO)
As it hydrates, an exothermic reaction results and the solid puffs up. The hydrate can be reconverted to quicklime by removing the water by heating it to redness to reverse the hydration reaction. One litre of water combines with approximately 3.1 kilograms (6.8 lb) of quicklime to give calcium hydroxide plus 3.54 MJ of energy. This process can be used to provide a convenient portable source of heat, as for on-the-spot food warming in a self-heating can.
When quicklime is heated to 2,400 °C (4,350 °F), it emits an intense glow. This form of illumination is known as a limelight, and was used broadly in theatrical productions prior to the invention of electric lighting.
Calcium oxide is also a key ingredient for the process of making cement.
Quick lime
Calcium carbonate Packing : PP pages 50kg or jumbo 800kg
Hydrated lime % of available lime as ca(oh)296+1+94+93+92+90+85+80+75+70+65 40kgs
Calcium oxide We have the pleasure to introduce our company to you. Limetreat (M) Sdn Bhd, one of the leading Lime Products manufacturer and supplier in Malaysia. Limetreat (M) Sdn Bhd is a member of NSL Chemicals Group of companies with operations in 14 countries. Its clients are located over the world from Middle East to China, and from Europe to Central America. The Group is a public listed company in the Stock Exchange of Singapore. Our primary lines of businesses are Environmental Chemicals & Services and we are the leading supplier for Lime products like Lime Stone, Quicklime, Calcium Carbonate Powder, Hydrated Lime, Calcium Oxide Powder, Carbon Additives and Refractory Products. NCL Chemicals is certified to ISO9001:2000 Quality Management System & also ISO14001. Limetreat products are certified by SIRIM Malaysia. Lime, one of the most prolific and versatile chemicals in the world and suitable for most of the sectors like steel industry, water treatment, plastering, agriculture, soil stabilization, mining industry, ready mix concrete, pulp & paper industry, etc. The environmental chemicals are manufactured in Malaysia and Singapore plants. In water treatment, lime is used by many municipalities to improve water quality, especially for water softening and arsenic removal. Hydrated lime is also widely used to adjust the PH of water to prepare it for further treatment. Lime is also used to combat "red water" by neutralizing the acid water, thereby reducing corrosion of pipes and mains from acid water.
Hydrated lime Limetreat (m) sdn bhd is a member of nsl chemicals group of companies with operations in 14 countries. Its clients are located over the world from middle east to china, and from europe to central america. The group is a public listed company in the stock exchange of singapore. Our primary lines of businesses are environmental chemicals & services and we are the leading supplier for lime products like lime stone, quicklime, calcium carbonate powder, hydrated lime, calcium oxide powder, carbon additives and refractory products. Ncl chemicals is certified to iso9001:2000 quality management system & also iso14001. Limetreat products are certified by sirim malaysia. Lime, one of the most prolific and versatile chemicals in the world and suitable for most of the sectors like steel industry, water treatment, plastering, agriculture, soil stabilization, mining industry, ready mix concrete, pulp & paper industry, etc. The environmental chemicals are manufactured in malaysia and singapore plants. In water treatment, lime is used by many municipalities to improve water quality, especially for water softening and arsenic removal. Hydrated lime is also widely used to adjust the ph of water to prepare it for further treatment. Lime is also used to combat "red water" by neutralizing the acid water, thereby reducing corrosion of pipes and mains from acid water. 25 kg kraft paper bag or 1000 kg jumboo bag
Supplier: Soap, detergents, water treatment chemicals, mining chemicals, agricultural products, minerals like raw bauxite, barium sulphate, bentonite, hydrated lime, quick lime, petcoke, sulphur, ferric chloride, sodium silicate, nitric acid, chlorohexidine gluconate 20%, povidone iodine, cetrimide
Buyer: Soda ash, gypsum, glycerine, dyes, pigment
Specification: Form : Kibble (2cm-5cm) (May change as per need) Appearance : White cream pH value(0.5:10) : Min. 2.8 Solubility : Completely soluble in hot water. Al as Al2O3 :Min. 17 % Insoluble matter : Max. 0.8 % (In water) Iron content as Fe:Below 50 ppm
Specifications: Magnesium as MgSO4.7H2O : 99.08% Magnesium as Mg : 9.6% Magnesium as MgO : 16.04% Sulphur as S : 12.10% Ph : 6-7.5 Solubility : Very soluble in water
Appearance Colourless to light yellow liquid Colour 3G Max Average Molecular Weight (Avg Mw) Approx. 360 Solid Content % - 35-38% Active Matter % - 38-32% Ph 10% Solution 5-7 Chloride As (NaCl) 7% max Free Amido amine 0.5 % Max Density at 20’C (G/cm3) Approx. 1.05
