Calcium chloride hexahydrate

U.S. imports for consumption, 4 563t water treatment compound for aquaculture in U.S., 3 213t Calcium chloride dihydrate, physical properties of, 4 5571 Calcium chloride hexahydrate, physical properties of, 4 557t Calcium chloride monohydrate, physical properties of, 4 557t Calcium chloride production, use of aqueous hydrochloric acid in,... 

FEILCHENFELD, H. and Sarig, S. Ind. Eng. Chem. Process. Prod. Res. Dev. 24 (1985) 130-133. Calcium chloride hexahydrate A phase-changing material for energy storage. 

Sodium chloride Ammonium chloride 1. . Sodium chloride ) Ammonium nitrate I, . Sodium chloride J Calcium chloride hexahydrate 33 20 40 41.6 41.6 143 —21.2 -30.0 —40.0 —55.0... 

Limestone (CaC03) is treated with hydrochloric acid and water to manufacture calcium chloride hexahydrate. This compound is used to melt ice and snow on pavements and roads. 

When the salt used is potassium chloride the temperature achieved will be around -10 to 0 Celsius. When the salt used is sodium chloride the temperature achieved will be -20 to 0 Celsius. When the salt used is anhydrous magnesium chloride the temperature achieved will be -30 to 0 Celsius, and when the salt used is calcium chloride hexahydrate the temperature achieved will be -55 to 0 Celsius. 

Calcium chloride (0 5m). Dissolve 109 5 g calcium chloride hexahydrate, CaCl2.6H20, in water and dilute to 1 litre. If the solid reagent is not pure enough, weigh 50 g calcium carbonate into a large porcelain dish, add slowly 100 ml of 1 1 hydrochloric acid, waiting with the addition of a new portion until effervescence ceases, then evaporate the mixture to dryness and dissolve the residue in water. Dilute finally to 1 litre. 

You have been given the task of determining the standard heat of the reaction in which calcium chloride hexahydrate is formed from anhydrous calcium chloride ... 

By definition, the desired quantity is the heat of hydration of calcium chloride hexahydrate. You cannot carry out the hydration reaction directly, so you resort to an indirect method. You first dissolve 1.00 mol of anhydrous CaCl2 in 10.0 mol of water in a calorimeter and determine that 64.85 kJ of heat must be transferred away from the calorimeter to keep the solution temperature at 25°C. You next dissolve 1.00 mol of the hexahydrate salt in 4.00 mol of water and find that 32.1 kJ of heat must be transferred to the calorimeter to keep the temperature at 25 C. 

Ba2C6H12FeN606 barium ferrocyanide hexahydrate 13821-06-2 25.00 2.6660 1 719 CaCI2H1206 calcium chloride hexahydrate 7774-34-7 25.00 1.7100 1... 

Torii T. and Ossaka J. (1965) Antarcticite a new mineral, calcium chloride hexahydrate, discovered in Antarctica. Science 149, 975-977. 

The hydrates or phase-change materials may also be incorporated in other materials. Calcium chloride hexahydrate has been used to fill pores in silica, alumina, carbon, and metals.196 This may be a way of eliminating problems... 

Solubility Curve of Calcium Chloride Hexahydrate.- — Although calcium chloride forms several hydrates, each of which possesses its own solubility, it is nevertheless the solubility curve of the hexahydrate which will chiefly interest us at present, and we shall therefore first discuss that curve by itself. 

The solubility curve of calcium chloride hexahydrate, which has been drawn (as is frequently done), with temperatures as abscissae and solubility as ordinates, differs markedly from the other solubility curves hitherto considered, in that it possesses a retroflex portion represented in the figure by BC. As is evident from the figure, therefore, calcium chloride hexahydrate exhibits the peculiar and, as it was at first thought, impossible behaviour that it can be in equilibrium at one and the same temperature with two different solutions, one of which contains more, the other less, water than the solid hydrate for it must be remembered that throughout the whole course of the curve ABC the solid phase present in equilibrium with the solution is the hexahydrate. 

It has been stated that water like ammonia can be added in two ways in the formation of addition compounds such a the hydrates, calcium chloride hexahydrate, etc., similar to the ammonia in the hexa-ammoniate of platinic chloride, PtCUGNHs. When platinic chloride is dissolved in water, the aqueous solution does not contain chloride ion as would be expected if the water combined with the chloride as the ammonia does. The platinic chloride combines with the... 

What mass of calcium chloride hexahydrate is required in order to make 700.0 mL of a 2.50 M solution ... 

Meisingset KK, Grqnvold F (1986) Thermodynamic properties and phase transitions of salt hydrates between 270 and 400 K. IV. Calcium chloride hexahydrate, calcium chloride tetrahydrate, calcium chloride dihydrate, and iron chloride (FeCI3) hexahydrate. J Chem Thermodyn 18 159-173... 

Feilchenfeld H, Fuchs J, Sang S (1985) The melting point adjustment of calcium chloride hexahydrate by addition of potassium chloride or calcium bromide hexahydrate. Sol Energy 34 199-201... 

Torii, T., and Ossaka, J. (1965). Antarcticite A New Calcium Chloride Hexahydrate Mineral Discovered in Antarctica. Science 149(3687), 975-977. 

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