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Strontium carbonate is also used for making some superconductors such as BSCCO and also for electroluminescent materials where it is first calcined into SrO and then mixed with sulfur to make SrS:x where x is typically europium. [citation needed] This is the "blue/green" phosphor which is sensitive to frequency and changes from lime green to blue.
The following chart shows the solubility of various ionic compounds in water at 1 atm pressure and room temperature (approx. 25 °C, 298.15 K). "Soluble" means the ionic compound doesn't precipitate, while "slightly soluble" and "insoluble" mean that a solid will precipitate; "slightly soluble" compounds like calcium sulfate may require heat to precipitate.
Solubility tables; Substance Formula 0 °C 10 °C 15 °C 20 °C 30 °C 40 °C 50 °C 60 °C ... (C 6 H 5) 4: 47: Sodium thiosulfate: Na 2 S 2 O 3: 71.5: 73: 77.6: 90 ...
About 8% by weight of cathode-ray tubes is strontium oxide, which has been the major use of strontium since 1970. [3] [4] Color televisions and other devices containing color cathode-ray tubes sold in the United States are required by law to use strontium in the faceplate to block X-ray emission (these X-ray emitting TVs are no longer in production).
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Solubility constants are used to describe saturated solutions of ionic compounds of relatively low solubility (see solubility equilibrium). The solubility constant is a special case of an equilibrium constant. Since it is a product of ion concentrations in equilibrium, it is also known as the solubility product. It describes the balance between ...
The solubility constant is a true constant only if the activity coefficient is not affected by the presence of any other solutes that may be present. The unit of the solubility constant is the same as the unit of the concentration of the solute. For sucrose K s = 1.971 mol dm −3 at 25 °C.
6.11 (18 °C) Copper(I) bromide: 7.38 (18–20 °C) Copper(I) chloride: 5.99 (18–20 °C) Copper(II) iodate: 6.85 Copper(I) iodide: 11.30 (18–20 °C) Copper(II) oxalate: 7.54 Copper(I) thiocyanate: 10.80 (18 °C) Iron(II) hydroxide: 13.79 (18 °C) Iron(III) hydroxide: 35.96 (18 °C) Lead(II) carbonate: 13.48 (18 °C) Lead(II) fluoride: 7.43 ...