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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 ]
calcium carbide: 75–20–7 Ca(C 2 HO 2) 2: calcium fumarate: 19855–56–2 Ca(C 2 H 3 O 2) 2: calcium acetate: 62–54–4 CaC 2 O 4: calcium oxalate: 563–72–4 Ca(C 3 H 5 O 2) 2: calcium propionate: 4075–81–4 Ca(ClO 3) 2: calcium chlorate: 10137–74–3 Ca(ClO 4) 2: calcium perchlorate: 13477–36–6 CaCl 2: calcium chloride: 10043 ...
For example, for calcium the U.S. Food and Drug Administration set the recommended intake for adults over 70 years at 1,200 mg/day and the UL at 2,000 mg/day. [18] The European Union also sets recommended amounts and upper limits, which are not always in accord with the U.S. [ 19 ] Likewise, Japan, which sets the UL for iodine at 3000 μg ...
The 1,1,2,2-tetrachloroethane is then dehydrochlorinated to give trichloroethylene. This can be accomplished either with an aqueous solution of calcium hydroxide: 2 Cl 2 CHCHCl 2 + Ca(OH) 2 → 2 ClCH=CCl 2 + CaCl 2 + 2 H 2 O. or in the vapor phase by heating it to 300–500 °C on a barium chloride or calcium chloride catalyst: Cl 2 CHCHCl 2 ...
Ammonium chloride precipitates and is removed by filtration, and the solution is recycled to produce more sodium carbonate. Hou's process eliminates the production of calcium chloride. The byproduct ammonium chloride can be refined, used as a fertilizer and may have greater commercial value than CaCl 2, thus reducing the extent of waste beds.
Calcium hydroxychloride is sometimes confused with calcium hypochlorite. Calcium hydroxychloride is a double salt, which consists of calcium cations Ca 2+ and two kinds of anions, chloride Cl − and hydroxide − OH, while calcium hypochlorite consists of calcium cations Ca 2+ and only one kind of anions, hypochlorite − OCl.
Chlorocalcite is a rare potassium calcium chloride evaporite mineral with formula: KCaCl 3. It is found in active volcanic fumaroles . It was first described in 1872 for an occurrence on Mount Vesuvius and given the name for its calcium content previous to discovering that it also contained potassium.