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|Lime powder||At ambient temperature, calcium hydroxide portlandite dissolves in pure water to produce an alkaline solution with a pH of about The United States apple monitor to connect to macbook pro the next largest, with around 20 million tonnes per year. Calcium hydroxide traditionally called slaked lime is an inorganic compound with the chemical formula Ca OH 2. Quicklime, burnt lime, unslaked lime, pebble lime, calcia. Form : Powder Assay : Filter Results Shop Now.|
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One significant application of calcium hydroxide is as a flocculant , in water and sewage treatment. It forms a fluffy charged solid that aids in the removal of smaller particles from water, resulting in a clearer product. This application is enabled by the low cost and low toxicity of calcium hydroxide. It is also used in fresh-water treatment for raising the pH of the water so that pipes will not corrode where the base water is acidic, because it is self-regulating and does not raise the pH too much.
It is also used in the preparation of ammonia gas NH 3 , using the following reaction:. Another large application is in the paper industry, where it is an intermediate in the reaction in the production of sodium hydroxide. This conversion is part of the causticizing step in the Kraft process for making pulp.
Because of its low toxicity and the mildness of its basic properties, slaked lime is widely used in the food industry :. In Spanish, calcium hydroxide is called cal. Maize cooked with cal in a process of nixtamalization becomes hominy nixtamal , which significantly increases the bioavailability of niacin vitamin B3 , and is also considered tastier and easier to digest.
In chewing 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 mollusc shells to enhance the effects. It has also been used by some indigenous American tribes as an ingredient in yopo , a psychedelic snuff prepared from the beans of some Anadenanthera species.
Calcium hydroxide is typically added to a bundle of areca nut and betel leaf called " paan " to keep the alkaloid stimulants chemically available to enter the bloodstream via sublingual absorption. It is used in making naswar also known as nass or niswar , a type of dipping tobacco made from fresh tobacco leaves, calcium hydroxide chuna or soon , and wood ash.
Villagers also use calcium hydroxide to paint their mud houses in Afghanistan, Pakistan and India. Unprotected exposure to Ca OH 2 can cause severe skin irritation, chemical burns, blindness, lung damage or rashes. From Wikipedia, the free encyclopedia.
Inorganic compound of formula Ca OH 2. CAS Number. Interactive image Interactive image. Gmelin Reference. D Y. PubChem CID. Chemical formula. Solubility in water. Solubility product K sp. Soluble in glycerol and acids. Insoluble in ethanol. Refractive index n D. Crystal structure. Space group. Lattice constant. Std molar entropy S o Signal word. Hazard statements. Precautionary statements. LD 50 median dose. PEL Permissible.
REL Recommended. IDLH Immediate danger. Other cations. Related bases. Chemical compound. CRC Press. ISBN Acta Crystallographica. Chemical Principles 6th Ed. Houghton Mifflin Company. Archived from the original PDF on 25 March Retrieved 21 June Journal of the Chemical Society. Chemistry of the Elements 2nd Edn.
Molecules in Astrophysics: Probes and Processes, vol. Calcium hydroxide". The Journal of Physical Chemistry. ISSN Dissolution des acides et des alcalis. In: Annales de Chimie et de Physique. Thermochemische untersuchungen [Thermochemical studies]. Journal of the American Chemical Society. Geochimica et Cosmochimica Acta. Indian 6 Items 6. Mexican 9 Items 9. Thai 4 Items 4. Not Specified 14 Items Fairtrade 3 Items 3.
Not Specified 65 Items New Items Please provide a valid price range. Buying Format. All Listings. Accepts Offers. Buy It Now. Item Location. Canada Only. North America. Shipping Options. Free International Shipping. Local Pickup. Free Local Pickup. Show only. Free Returns. Returns Accepted.
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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. It is a colorless crystal or white powder and is produced when quicklime (calcium oxide) is mixed or slaked with water. It has many names including hydrated. Lime plaster — is a mixture of calcium hydroxide and sand (or other inert [umdi.darlzweb.online (materials) filler materials]). Carbon dioxide.