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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 ...
A cooling bath or ice bath, in laboratory chemistry practice, is a liquid mixture which is used to maintain low temperatures, typically between 13 °C and −196 °C. These low temperatures are used to collect liquids after distillation , to remove solvents using a rotary evaporator , or to perform a chemical reaction below room temperature ...
A similar mineral, sinjarite, the dihydrate of calcium chloride, crystallizes in the tetragonal system. [6] Sinjarite is semitransparent, with pale pink color. [7] Hydrophilite is a now discredited calcium chloride mineral that is considered to be either antarcticite or sinjarite. [8] [9]
A 1966 US patent claims that stable solid sodium hypochlorite dihydrate NaOCl·2H 2 O can be obtained by carefully excluding chloride ions (Cl −), which are present in the output of common manufacturing processes and are said to catalyze the decomposition of hypochlorite into chlorate (ClO − 3) and chloride. In one test, the dihydrate was ...
A variety of empty glass drying tubes. When used, they are packed with a desiccant, usually calcium chloride. A drying tube or guard tube is a tube-like piece of apparatus used to house a disposable solid desiccant, wherein at one end the tube-like structure terminates in a ground glass joint for use in connecting the drying tube to a reaction vessel, for the purpose of keeping the vessel free ...
Bill Belichick has spent a lot of time talking into a microphone about football this season, but he has his sights set higher for next year. According to The Athletic, Belichick wants to return to ...
CoCl 2 ·6H 2 O – cobalt(II) chloride hexahydrate; SnCl 2 ·2H 2 O – tin(II) (or stannous) chloride dihydrate; For many salts, the exact bonding of the water is unimportant because the water molecules are made labile upon dissolution. For example, an aqueous solution prepared from CuSO 4 ·5H 2 O and anhydrous CuSO 4 behave identically.
Rickey Henderson, who died Friday at age 65, was the standard on the basepaths, setting numerous major league records for stolen bases, including the career mark of 1,406 and the modern single ...