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This is a list of prices of chemical elements. Listed here are mainly average market prices for bulk trade of commodities. ... Per-kilogram prices of some synthetic ...
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With no potassium intake, it is excreted at about 200 mg per day until, in about a week, potassium in the serum declines to a mildly deficient level of 3.0–3.5 mmol/L. [107] If potassium is still withheld, the concentration continues to fall until a severe deficiency causes eventual death.
Concrete made with GGBS continues to gain strength over time, and has been shown to double its 28-day strength over periods of 10 to 12 years. [ citation needed ] The optimum dosage of Ground granulated blast-furnace slag (GGBS) for replacement in concrete was reported to be 20-30% by mass to provide higher compressive strength compared to the ...
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Approximately 10% by weight of common wood ash can be recovered as potash. [10] [11] Later, "potash" became widely applied to naturally occurring minerals that contained potassium salts and the commercial product derived from them. [12] The following table lists a number of potassium compounds that have "potash" in their traditional names:
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Sodium and potassium are very abundant on Earth, both being among the ten most common elements in Earth's crust; [49] [50] sodium makes up approximately 2.6% of the Earth's crust measured by weight, making it the sixth most abundant element overall [51] and the most abundant alkali metal.