FeCl2 FERROUS CHLORIDE

FeCl2 FERROUS CHLORIDE -1350.9354 6.2772E+04 4.8764E+02 -2.0598E-01 3.2434E... 

FeCl2 FERROUS CHLORIDE 51.564 1.4293E-01 -2.6346E-04 2.3592E-07 -7.9693E-11 298 950 solid... 

Examples FeCl2 ferrous chloride Fe (lower-charge cation)... 

Sa.lts Salting out metal chlorides from aqueous solutions by the common ion effect upon addition of HCl is utilized in many practical apphcations. Typical data for ferrous chloride [13478-10-9] FeCl2, potassium chloride [7447-40-7] KCl, and NaCl are shown in Table 9. The properties of the FeCl2-HCL-H2 0 system are important to the steel-pickling industry (see Metal SURFACE TREATMENTS Steel). Other metal chlorides that are salted out by the addition of hydrogen chloride to aqueous solutions include those of magnesium, strontium, and barium. 

Iron halides are the most common of these salts [more specifically as a chloride iron(II) chloride (ferrous chloride or FeCl2) and iron(III) chloride (ferric chloride or FeCls)]. 

Salts may contain metals which can show variable valency. If the metal exhibits lower valency, the metallic part of the name ends in - ous , and if the metal shows higher valency, the name ends in - ic . Ferrous chloride (FeCl2) Ferric chloride (FeCl3)... 

As an example of a different form of problem more common to the ba ic chemical industry, let us consider the case where concentrated solutions of ferrous chloride are the by-products of an industrial process. In this particular example at different points of the process cycle, two questions arose the first being a need to know the vapor pressure of hydrochloric acid over mixtures of FeC -HCH O and the second, the solubility of FeCl2 as a function of HC1 concentration. 

To use the ECES system, activity coefficient data for FeCl2 had to be developed. A recent paper by Susarev et al (15) presented experimental results of the vapor pressure of water over ferrous chloride solutions for temperatures from 25 to 100°C and concentrations of 1 to 4.84 molal. This data was entered into the ECES system in the Data Preparation Block with a routine VAPOR designed to regress such data and develop the interaction coefficients B, C, D of our model. These results replaced an earlier entry which was based on more limited data. All other data for studying the equilibria in the FeCl2-HCl-H20 system was already contained within the ECES system. 

Hence, the addition of FeCl2 eases the electron transfer. As already mentioned, this electron-transfer reaction occurs spontaneously without the addition of the salt, but with lower efficiency. Ferrous chloride sharply increases the reaction efficiency. It is interesting that analogous reaction... 

Distillation-Reducing Solution Dissolve 36 g of ACS low-arsenic ferrous chloride (FeCl2-4H20) in 500 mL of 6.6 N hydrochloric acid. Prepare fresh on the day of use. 

Ferrous chloride is present in rinneite, FeCl2.3KCl.NaCl, which occurs in large, lenticular masses in beds of rock salt at Wolkramshauscn in the Harz, and as a kieserite-rinneite rock in Hanover.7 It crystallises in the hexagonal system, and when a hot, saturated solution is allowed to cool, potassium chloride separates out. 

Ferrous chloride accelerates the oxidation of stannous chloride solution in air, the maximum effect being obtained with one molecule of FeCl2 to 100 molecules of SnCl2.4... 

If the hydrated salt, FeCl2.4H20, is dissolved in ammonium chloride solution, evaporated to dryness, and subsequently heated in the absence of air, the water and ammonium chloride escape, leaving the anhydrous ferrous chloride behind.5... 

In boiling solutions of organic liquids such as pyridine, ferrous chloride appears to have the simple formula FeCl2.2... 

An ethereal solution of ferrous chloride heated in a sealed tube with ethylene absorbs the gas, yielding a compound, FeCl2.C2H4.2H20, in the form of colourless, needle-shaped crystals, readily soluble in water.3... 

With methylamine, ferrous chloride yields two compounds namely, a white voluminous compound containing six molecules of methylamine, FeCl2.6CH3NH2 and a grey compound, FeCl2.2CH3NH2. 

Ferrous chloride in acid solution is partially oxidised by sulphur dioxide to the ferric salt, sulphur being deposited.2 Solutions of ferrous chloride in various solvents such as water, alcohol, ethylacetate, pyridine, etc., absorb nitric oxide, the extent of absorption depending upon the concentration of the iron salt, the temperature, gaseous pressure, and the nature of the solvent. The limit of absorption is reached with one molecule of NO to one atom of iron. Presumably the compound FeCl2.NO exists in solution, most probably combined with the solvent.3 It has not as yet been isolated.4... 

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