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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]
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 ...
Calcium is also used in maintenance-free automotive batteries, in which the use of 0.1% calcium–lead alloys instead of the usual antimony–lead alloys leads to lower water loss and lower self-discharging. [47] Due to the risk of expansion and cracking, aluminium is sometimes also incorporated into these alloys.
The Calcium-Dependent Chloride Channel (Ca-ClC) proteins (or calcium-activated chloride channels (CaCCs), [2] are heterogeneous groups of ligand-gated ion channels for chloride that have been identified in many epithelial and endothelial cell types as well as in smooth muscle cells.
This means that for every gram of calcium chloride hexahydrate, there are 272 mg of actual, absorbable calcium. This high calcium content is one reason why calcium chloride is often used in medical treatments and as a calcium supplement. [43] Another reason is fast absorption, which is useful for instant calcium supplementation in emergencies.
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.
Calciothermic reactions are metallothermic reduction reactions (more generally, thermic chemical reactions) which use calcium metal as the reducing agent at high temperature. Calcium is one of the most potent reducing agents available, usually drawn as the strongest oxidic reductant in Ellingham diagrams , though the lanthanides best it in this ...