Water solubility Solubility in organic solvents / fat solubility Surface tension Flash point Auto flammability Flammability Explosiveness Oxidising properties Oxidation reduction potential Stability in organic solvents and identity of Reacts with water to form corrosive calcium hydroxide, with evolution of much heat. For the evaluation of this endpoint, data from one guideline compliant study (EU A.6 method) was used as key information. It is the peroxide (O22−) salt of Ca2+. The content is subject to change without prior notice.Reproduction or further distribution of this information may be subject to copyright protection. Calcium oxide (KAL-see-um OK-side) is an odorless crystalline or powdery solid that, in a pure form, is white to off-gray. Units of solubility are given in grams per 100 millilitres of water (g/100 ml), unless shown otherwise. In the aquatic environment and in soil, exposure to calcium oxide actually comes down to exposure to calcium and hydroxyl ions. It is standard textbook knowledge that calcium oxide reacts to calcium hydroxide in contact with water. The water solubility of calcium carbonate, as determined in a study performed according to OECD TG 105, is 16.6 mg/L at 20 °C. The water solubility of the test item and /or degradation products has been determined to be 956 mg calcium/l of solution at 20.0 ± 0.5 °C (recalculated value for calcium oxide: 1337.6 mg/l). The solubility of calcium oxide was recalculated from the water solubility value of calcium, which was stated in the study report. From: Biofuels, 2011. The water solubility of calcium carbonate, as determined in a study performed according to OECD TG Ì.‘%'E*\\>z¿ùĶ­¥H¦y÷>–˘dP�Û�¸%* .Gß#*ÔR¶¯>m1£¿Cÿn+ñ �ª‡‡‡ Í÷O¤IPÈev�Âû»FcÂ'§ğ¹30ˆŸ…ÿj\"3«Áğ$ïaèá¿ù'A Information on Registered Substances comes from registration dossiers which have been assigned a registration number. Temperatures as high as 800 C have been reached with addition of water (moisture in air or soil). bone, the study of the solubility of the calcium salts of bone was confined to CaC03 and Cas(PO&. The high solubility of calcium oxide makes it difficult to produce phosphate-based cements. Calcium Oxide. 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 water solubility of calcium oxide was tested by measuring the concentration calcium ions in saturated solution. The broadly used term "lime" connotes calcium-containing inorganic materials, in which carbonates, oxides and hydroxides of calcium, silicon, magnesium, aluminium, and iron predominate. This information has not been reviewed or verified by the Agency or any other authority. [2] Particle size distribution (Granulometry), Solubility in organic solvents / fat solubility, Stability in organic solvents and identity of relevant degradation products, Storage stability and reactivity towards container material, Biodegradation in water and sediment: simulation tests, Additional information on environmental fate and behaviour, Short-term toxicity to aquatic invertebrates, Long-term toxicity to aquatic invertebrates, Toxicity to aquatic algae and cyanobacteria, Toxicity to aquatic plants other than algae, Endocrine disrupter testing in aquatic vertebrates – in vivo, Toxicity to soil macroorganisms except arthropods, Endocrine disrupter mammalian screening – in vivo (level 3), Direct observations: clinical cases, poisoning incidents and other, Exposure related observations in humans: other data, Additional physico-chemical properties of nanomaterials, Toxicokinetics, metabolism and distribution. It is almost insoluble in water. Close Find out more on how we use cookies. The solubility of calcium oxide was recalculated from the water solubility value of calcium, which was stated in the study report. This site is not fully supported in Internet Explorer 7 (and earlier versions). Chemical names Calcium oxide C.A.S. Water solubility of calcium oxide: 1337.6 mg/l at 20 ± 0.5 C (study results, EU A.6 method, recalculated value from calcium). Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner. There will be no intake of calcium oxide as such The temperature was ± 0.5 °C. However, calcium oxide can be converted to compounds of reduced solubility such as silicates, aluminates, or even hydrophosphates, which then can be used in an acid-base reaction with phosphate, forming CBPCs. When mixed with water it forms slaked lime (which is actually Ca(OH)2) better known to families as Lime Water (for infant Colic).