The Ternary Systems Ferrous Chloride—Hydrogen Chloride—Water, Ferric Chloride—Ferrous Chloride—Water

Schimmel, Fred A.

doi:10.1021/ja01138a071

Cited by 19 publications

(4 citation statements)

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“…It is evident that with increasing temperature, the saturation concentration increases. This effect has been extensively shown for FeCl 2 solutions by both Chou and Phan 32 and Schimel, 34 and a similar trend is seen between both FeCl 2 solutions and the stoichiometric solution. A comparison with other reported saturation values can be seen in Figure 8.…”

Section: Discussionsupporting

confidence: 68%

“…13,22 The saturation point of FeCl 2 has been studied extensively as a function of temperature. [31][32][33][34] However, SS alloys contain considerable amounts of chromium and nickel which can impact saturation concentrations. 23,34 Assuming stoichiometric dissolution of SS304, iron-, chromium-and nickel-containing metal salts will form.…”

mentioning

confidence: 99%

“…[31][32][33][34] However, SS alloys contain considerable amounts of chromium and nickel which can impact saturation concentrations. 23,34 Assuming stoichiometric dissolution of SS304, iron-, chromium-and nickel-containing metal salts will form. As these metal salts will reach saturation during anodic pit growth at concentrations likely different than that of FeCl 2 alone, it is of importance to understand the behavior of the metal salt mixture.…”

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confidence: 99%

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Prediction of Maximum Pit Sizes in Elevated Chloride Concentrations and Temperatures

Katona

Carpenter

Schindelholz

et al. 2019

J. Electrochem. Soc.

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Calculated maximum pit sizes for stainless steel 304L (SS304L) are presented for atmospheric conditions with elevated chloride concentrations and temperatures. These calculations were carried out by experimentally determining the pit stability product ((i • x) s f ), repassivation potential (E r p ), and cathodic kinetics. These results were aided by determination of a solubility curve as a function of temperature for a stoichiometric metal salt mixture of iron chloride (FeCl 2 ), chromium chloride (CrCl 3 ), and nickel chloride (NiCl 2 ). Based on these newly measured saturation concentrations, metal ion diffusivities were calculated. Overall, it was found that (i • x) s f decreases with increasing chloride concentration and increases with increasing temperature. E r p was determined to decrease with increasing concentration and increase with increasing temperature. When incorporated into the maximum pit size model, these experimental results yielded a small increase in maximum pit size with increasing bulk chloride concentrations and/or increasing temperature.

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Section: Discussionsupporting

confidence: 68%

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confidence: 99%

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confidence: 99%

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Prediction of Maximum Pit Sizes in Elevated Chloride Concentrations and Temperatures

Katona

Carpenter

Schindelholz

et al. 2019

J. Electrochem. Soc.

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“…SOLUBILITY isotherms of the FeCl2-HCl-H20 system at 40°and 60°C (5), the MgCl2-HCl-H20 system at 25°C (1, 2), and the FeCl2-MgCl2-H20 system at 15°and 40°C (3, 4) are available in the literature. However, no data on the FeCl2-MgCl2-HCl-H20 system have been reported.…”

Section: Literature Citedmentioning

confidence: 99%

Solubility isotherm of the ferric chloride-magnesium chloride-hydrogen chloride-water system

Chen¹,

McGuire²,

Lee³

1970

J. Chem. Eng. Data

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for the system reported here. The calculation method used is similar to the one suggested by Prausnitz et al. ( 4 ) .Calculated values of yl based on 712 and ~2~ are given in Table 11 cy1 &d). The maximum percentage deviation between y1 expt~ and y1 calcd = (lOOAy/yl exptl) is less than 3.03%. Plots of log ( y l / y 2 ) us. x1 in accordance with the Redlich and Kister equation ( 5 ) showed the integrated value was 0.417 and the absolute value was 4.075. The small integrated value showed that the data were consistent. NOMENCLATURE g,, = energies of interaction between an i-j pair of molecules P = vapor pressure, mm of Hg x = mole fraction in liquid phase y = mole fraction in vapor phase CY,, = nonrandomness constant for binary i -j interactions AY = (Y1 exptl -y1 calcd) y = activity coefficient T = total pressure, mm of Hg T,, = coefficient defined in Equation 3Subscripts 1 = carbon disulfide 2 = methanol

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Activity Coefficients of Strongly Complexing Compounds

Zemaitis¹,

Clark

Rafal

et al. 1986

Handbook of Aqueous Electrolyte Thermodynamics

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The Ternary Systems Ferrous Chloride—Hydrogen Chloride—Water, Ferric Chloride—Ferrous Chloride—Water

Cited by 19 publications

References 0 publications

Prediction of Maximum Pit Sizes in Elevated Chloride Concentrations and Temperatures

Prediction of Maximum Pit Sizes in Elevated Chloride Concentrations and Temperatures

Solubility isotherm of the ferric chloride-magnesium chloride-hydrogen chloride-water system

Activity Coefficients of Strongly Complexing Compounds

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