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The anhydrous salt can be prepared by reaction of ferrous chloride with anhydrous hydrogen fluoride. [12] It is slightly soluble in water (with solubility product K sp = 2.36×10 −6 at 25 °C) [13] as well as dilute hydrofluoric acid, giving a pale green solution. [1]
In telecommunications, the free-space path loss (FSPL) (also known as free-space loss, FSL) is the attenuation of radio energy between the feedpoints of two antennas that results from the combination of the receiving antenna's capture area plus the obstacle-free, line-of-sight (LoS) path through free space (usually air). [1]
Ferric oxalate, also known as iron(III) oxalate, refers to inorganic compounds with the formula Fe 2 (C 2 O 4) 3 (H 2 O) x but could also refer to salts of [Fe(C 2 O 4) 3] 3-. Fe 2 (C 2 O 4) 3 (H 2 O) x are coordination polymers with varying degrees of hydration.
Ferrocyanide is the name of the anion [Fe() 6] 4−.Salts of this coordination complex give yellow solutions. It is usually available as the salt potassium ferrocyanide, which has the formula K 4 Fe(CN) 6.
The Van 't Hoff equation relates the change in the equilibrium constant, K eq, of a chemical reaction to the change in temperature, T, given the standard enthalpy change, Δ r H ⊖, for the process.
Natural iron (26 Fe) consists of four stable isotopes: 5.845% 54 Fe (possibly radioactive with half-life > 4.4 × 10 20 years), [4] 91.754% 56 Fe, 2.119% 57 Fe and 0.286% 58 Fe. There are 28 known radioisotopes and 8 nuclear isomers, the most stable of which are 60 Fe (half-life 2.6 million years) and 55 Fe (half-life 2.7 years).
Although anhydrous ferrous acetate can be viewed as a simple salt, X-ray crystallography reveals a complicated polymeric structure. [1] Color code: red = O, blue = Fe, gray = C, white = H.
A link budget is an accounting of all of the power gains and losses that a communication signal experiences in a telecommunication system; from a transmitter, through a communication medium such as radio waves, cable, waveguide, or optical fiber, to the receiver.