See separate entry. For readability purpose, only non-confidential use descriptors occurring in more than 5% of total occurrences are displayed. The corn swells, loosening the husks. The POPs Regulation bans or severely restricts the production and use of persistent organic pollutants in the European Union. cutting of textile, cutting, machining or grinding of metal) and industrial abrasion processing with high release rate (e.g. At this stage in the game, though, what they are adding is juice from the lime fruit, not lime the chemical — Calcium Hydroxide. The information is aggregated from the data coming from REACH substance registrations provided by industry. This section provides an overview of the calculated volume at which the substance is manufactured or imported to the European Economic Area (EU28 + Iceland, Liechtenstein and Norway). gloves, shoes, purses, furniture), metal (e.g. machine wash liquids/detergents, automotive care products, paints and coating or adhesives, fragrances and air fresheners) and outdoor use. The quicklime is not stable and, when cooled, will spontaneously react with CO2 from the air until, after enough time, it will be completely converted back to calcium carbonate unless slaked with water to set as lime plaster or lime mortar. [24], Limestone is a substitute for lime in many applications, which include agriculture, fluxing, and sulfur removal. ECHA organises consultations to get feedback from all interested parties and to gather the widest possible range of scientific information for the regulatory processes. Inhalation may cause coughing, sneezing, and labored breathing. Limestone (calcium carbonate CaCO3) that has been recrystallized by metamorphism and is capable of taking a polish. sanding operations or paint stripping by shot-blasting). The CO2 of the stone is released to produce Calcined lime or Quicklime or Burnt Lime (CaO respectively). The type of uses and classifications may vary between different submissions to ECHA and for a full understanding it is recommended to consult the source data. Cement, cement kiln dust, fly ash, and lime kiln dust are This substance is used by consumers, in articles, by professional workers (widespread uses), in formulation or re-packing, at industrial sites and in manufacturing. This form of illumination is known as a, Cement: Calcium oxide is a key ingredient for the process of making, As a cheap and widely available alkali. Quicklime is relatively inexpensive. However, substance notifications in the InfoCard are aggregated independently of the impurities and additives. The date of the last update corresponds to the publication date of the InfoCard and not necessarily to the date in which the update occurred in the source data. “Quick” used to be used in a sense that meant alive, as in the “quick and the dead”.) Calcium Oxide has a very high melting temperature, 2572°C. Other release to the environment of this substance is likely to occur from: outdoor use in long-life materials with low release rate (e.g. Hazard statements were adapted to improve readability and may not correspond textually to the hazard statements codes description in the European Union Specific Hazard Statements (EUH) or the. Release to the environment of this substance can occur from industrial use: manufacturing of the substance, formulation of mixtures, formulation in materials, in processing aids at industrial sites, in the production of articles, as an intermediate step in further manufacturing of another substance (use of intermediates), as processing aid, for thermoplastic manufacture, as processing aid, of substances in closed systems with minimal release, industrial abrasion processing with low release rate (e.g. Disposal of corpses: Historically, it was believed that quicklime was efficacious in accelerating the decomposition of corpses. The substance identifiers displayed in the InfoCard are the best available substance name, EC number, CAS number and/or the molecular and structural formulas. This substance is manufactured and/or imported in the European Economic Area in 100 000 - 1 000 000 tonnes per year. When information is available in all sources, the first two are displayed as a priority. ECHA has no public registered data indicating whether or in which chemical products the substance might be used. [23] Quicklime may have been used in medieval naval warfare – up to the use of "lime-mortars" to throw it at the enemy ships. More information about the EC Inventory can be found here. Release to the environment of this substance can occur from industrial use: formulation of mixtures, industrial abrasion processing with low release rate (e.g. Calcium oxide that survives processing without reacting in building products such as cement is called free lime.[5]. Slaked lime, which is the common name for calcium hydroxide, is a chemical compound whose formula can be represented as Ca(OH) 2. It gets somewhat confusing, though, when you learn that Mexicans, such as those in Monterrey, Mexico will sometimes add “lime” when they are making tortillas. A substance identified primarily by an EC or list number may be linked with more than one CAS number, or with CAS numbers that have been deleted. Calcium oxide is usually made by the thermal decomposition of materials, such as limestone or seashells, that contain calcium carbonate (CaCO3; mineral calcite) in a lime kiln. It comes instead from a very old word related to the words “loam” and “slime”, and to the German word for clay, “Lehm”. [7], Approximately 1.8 t of limestone is required per 1.0 t of quicklime. ECHA has no public registered data indicating whether or in which chemical products the substance might be used. cutting of textile, cutting, machining or grinding of metal) and industrial abrasion processing with high release rate (e.g. Biocidal Products Committee opinions on active substance approval, National authorisation and mutual recognition, Understanding the Waste Framework Directive, Tools to prepare and submit SCIP notifications, List of substances subject to the POPs Regulation, Draft recommendation for inclusion in the Authorisation List and consultation, Submitted restrictions under consideration, Harmonised classification and labelling targeted consultations, Consultations on ECHA Executive Director’s requests, PACT - Public Activities Coordination Tool, Information on Candidate List substances in articles, Candidate List of substances of very high concern for Authorisation, Registry of restriction intentions until outcome, Registry of SVHC intentions until outcome, Table of harmonised entries in Annex VI to CLP, Occupational exposure limits - Activity list, Harmonised classification and labelling (RAC), Chapter R.12: Use Descriptor system of ECHA Guidance on information requirements and chemical safety assessment, Guidance on the safe use of the substance, Applications for authorisation consultations, Harmonised classification and labelling consultations, ECHA Executive Director’s requests related to the CLH process, Consultation on potential candidates for substitution, Consultation on derogation to the exclusion criteria, ECHA's Executive Director Requests to the Committees, Consultation on a draft recommendation for amendment of Authorisation List entries, Consultations in the authorisation process, Occupational exposure limits - Call for comments and evidence, Occupational exposure limits - Previous calls for comments and evidence, Occupational exposure limits – Consultations on OEL recommendation, Derogations for the protection of cultural heritage, ECHA's current activities on restrictions, ECHA's completed activities on restriction, Information on Candidate List substances in articles table, Information from the Existing Substances Regulation (ESR), PBT/vPvB assessments under the previous EU chemicals legislation, Adopted opinions and previous consultations on applications for authorisation, Adopted opinions on restriction proposals, Mapping exercise – Plastic additives initiative, Occupational exposure limits substance evaluations, List of substances subject to POPs Regulation, Small and Medium-sized Enterprises (SMEs), Practical examples of chemical safety reports. dishes, pots/pans, food storage containers, construction and isolation material), fabrics, textiles and apparel (e.g. If at least one company has indicated that the substance classification is affected by impurities or additives, this will be indicated by an informative sentence. It does not represent a new labelling, classification or hazard statement, neither reflect other factors that affect the susceptibility of the effects described, such as duration of exposure or substance concentration (e.g. This was quite mistaken, and the application of quicklime can even promote preservation; although it can help eradicate the stench of decomposition, which may have led people to suppose it was the actual flesh which had been consumed. For a detailed overview on identified uses and environmental releases, please consult the registered substance factsheet. In Old English, the word for the chemical lime was “lïm”. ECHA maintains the C&L Inventory, but does not review or verify the accuracy of the information. When Calcium Hydroxide is mixed in water, it creates a very alkaline solution. Alternately, this compound can also exist in the form of colourless crystals at STP.
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