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Calcium chloride was apparently discovered in the 15th century but wasn't studied properly until the 18th century. [11] It was historically called "fixed sal ammoniac" (Latin: sal ammoniacum fixum [12]) because it was synthesized during the distillation of ammonium chloride with lime and was nonvolatile (while the former appeared to sublime); in more modern times (18th-19th cc.) it was called ...
Calcium(I) chloride (CaCl) is a diatomic molecule observed in certain gases. [1] A solid with the composition CaCl was reported in 1953; [2] however, later efforts to reproduce this work failed. [3] Molecules of CaCl have been observed in the atmospheres of carbon stars. [4]
Five grades of OSB are defined in EN 300 in terms of their mechanical performance and relative resistance to moisture: [2] OSB/0 – No added formaldehyde; OSB/1 – General-purpose boards and boards for interior fitments (including furniture) for use in dry conditions; OSB/2 – Load-bearing boards for use in dry conditions
This is an accepted version of this page This is the latest accepted revision, reviewed on 8 February 2025. American multinational home improvement supplies retailing company The Home Depot, Inc. An aerial view of a Home Depot in Onalaska, Wisconsin. Company type Public Traded as NYSE: HD DJIA component S&P 100 component S&P 500 component Industry Retail (home improvement) Founded February 6 ...
Ca(ClO 3) 2 + Na 2 CO 3 → 2 NaClO 3 + CaCO 3. On strong heating, calcium chlorate decomposes to give oxygen and calcium chloride: Ca(ClO 3) 2 → CaCl 2 + 3 O 2. Cold, dilute solutions of calcium chlorate and sulfuric acid react to give a precipitate of calcium sulfate and chloric acid in solution: [3] Ca(ClO 3) 2 + H 2 SO 4 → 2 HClO 3 + CaSO 4
In one process, the chloride-rich first stage water is discarded, while the solid precipitate is dissolved in a mixture of water and lye for another round of chlorination to reach the target purity. [2] Commercial calcium hypochlorite consists of anhydrous Ca(OCl) 2, dibasic calcium hypochlorite Ca 3 (OCl) 2 (OH) 4 (also written as Ca(OCl) 2 ...
The following chart shows the solubility of various ionic compounds in water at 1 atm pressure and room temperature (approx. 25 °C, 298.15 K). "Soluble" means the ionic compound doesn't precipitate, while "slightly soluble" and "insoluble" mean that a solid will precipitate; "slightly soluble" compounds like calcium sulfate may require heat to precipitate.
Calcium deposits, primarily composed of calcium carbonate (CaCO 3), react with weak acids to form calcium salts that are soluble in water. The general reaction can be represented as follows: CaCO 3 + 2H + → Ca + 2 + CO 2 + H 2 O. Here, H + represents the hydrogen ions provided by the acid.