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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 carbonate (Precipitated Chalk) – CaCO 3; Calcium chlorate – Ca(ClO 3) 2; Calcium chloride – CaCl 2; Calcium chromate – CaCrO 4; Calcium cyanamide – CaCN 2; Calcium fluoride – CaF 2; Calcium hydride – CaH 2; Calcium hydroxide – Ca(OH) 2; Calcium monosilicide – CaSi; Calcium oxalate – CaC 2 O 4; Calcium hydroxychloride ...
Soil stabilization is a general term for any physical, chemical, mechanical, biological, or combined method of changing a natural soil to meet an engineering purpose. [1] Improvements include increasing the weight-bearing capabilities, tensile strength, and overall performance of unstable subsoils , sands, and waste materials in order to ...
These are mostly calcium, potassium, and magnesium salts of chloride and sulfate with substantially lesser amounts of many trace elements found in natural seawater. Though the composition of commercially available salt may vary, the ionic composition of natural saltwater is relatively constant.
These may be metal salts containing chloride ion such as sodium chloride, or more covalent chlorides of metals or nonmetals such as titanium(IV) chloride or carbon tetrachloride. See also [ edit ]
Calcium hypochlorite is commonly used to sanitize public swimming pools and disinfect drinking water. Generally the commercial substances are sold with a purity of 65% to 73% with other chemicals present, such as calcium chloride and calcium carbonate, resulting from the manufacturing process.
Calcium is a chemical element; it has symbol Ca and atomic number 20. As an alkaline earth metal, calcium is a reactive metal that forms a dark oxide-nitride layer when exposed to air. Its physical and chemical properties are most similar to its heavier homologues strontium and barium.
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.