Crystallization of metal fluoride hydrates from mixed hydrofluoric and nitric acid solutions, part II: Iron (III) and nickel (II)

Kerstin M. Forsberg; Åke C. Rasmuson

doi:10.1016/j.jcrysgro.2010.05.017

Crystallization of metal fluoride hydrates from mixed hydrofluoric and nitric acid solutions, part II: Iron (III) and nickel (II)

Kerstin M. Forsberg
, Åke C. Rasmuson

Retired Staff

KTH Royal Institute of Technology

Research output: Contribution to journal › Article › peer-review

Abstract

Crystallization of nickel fluoride hydrate from mixed pickle acid and the influence of Ni(II) on growth rate of β-FeF₃·3H ₂O have been studied. Iron and nickel crystallize into an unidentified Fe/Ni fluoride hydrate crystal having the overall mol ratio of Ni, Fe, and F equal to 1:2:8, which is in accordance with the number of fluoride ions needed to balance the positive charges of Ni and Fe. The most probable empirical formula of this material is (FeF₃)₂NiF ₂(H₂O)₆₁₀. By seeded isothermal desupersaturation experiments, growth rate of β-FeF₃· 3H₂O crystals at 50 °C has been studied in a hydrofluoric acid and nitric acid solution containing Ni(II). It is found that the growth rate of β-FeF₃·3H₂O is essentially uninfluenced by the presence of 4 g/kg Ni(II).

Original language	English
Pages (from-to)	2358-2362
Number of pages	5
Journal	Journal of Crystal Growth
Volume	312
Issue number	16-17
DOIs	https://doi.org/10.1016/j.jcrysgro.2010.05.017
Publication status	Published - 2010

Keywords

A1. Supersaturated solutions
A2. Growth from solutions
B1. Acids
B1. Inorganic compounds

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10.1016/j.jcrysgro.2010.05.017

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@article{5786691709dc4f6c9a8ade020fdeffa3,

title = "Crystallization of metal fluoride hydrates from mixed hydrofluoric and nitric acid solutions, part II: Iron (III) and nickel (II)",

abstract = "Crystallization of nickel fluoride hydrate from mixed pickle acid and the influence of Ni(II) on growth rate of β-FeF3·3H 2O have been studied. Iron and nickel crystallize into an unidentified Fe/Ni fluoride hydrate crystal having the overall mol ratio of Ni, Fe, and F equal to 1:2:8, which is in accordance with the number of fluoride ions needed to balance the positive charges of Ni and Fe. The most probable empirical formula of this material is (FeF3)2NiF 2(H2O)610. By seeded isothermal desupersaturation experiments, growth rate of β-FeF3· 3H2O crystals at 50 °C has been studied in a hydrofluoric acid and nitric acid solution containing Ni(II). It is found that the growth rate of β-FeF3·3H2O is essentially uninfluenced by the presence of 4 g/kg Ni(II).",

keywords = "A1. Supersaturated solutions, A2. Growth from solutions, B1. Acids, B1. Inorganic compounds",

author = "Forsberg, \{Kerstin M.\} and Rasmuson, \{{\AA}ke C.\}",

year = "2010",

doi = "10.1016/j.jcrysgro.2010.05.017",

language = "English",

volume = "312",

pages = "2358--2362",

journal = "Journal of Crystal Growth",

issn = "0022-0248",

number = "16-17",

}

TY - JOUR

T1 - Crystallization of metal fluoride hydrates from mixed hydrofluoric and nitric acid solutions, part II

T2 - Iron (III) and nickel (II)

AU - Forsberg, Kerstin M.

AU - Rasmuson, Åke C.

PY - 2010

Y1 - 2010

N2 - Crystallization of nickel fluoride hydrate from mixed pickle acid and the influence of Ni(II) on growth rate of β-FeF3·3H 2O have been studied. Iron and nickel crystallize into an unidentified Fe/Ni fluoride hydrate crystal having the overall mol ratio of Ni, Fe, and F equal to 1:2:8, which is in accordance with the number of fluoride ions needed to balance the positive charges of Ni and Fe. The most probable empirical formula of this material is (FeF3)2NiF 2(H2O)610. By seeded isothermal desupersaturation experiments, growth rate of β-FeF3· 3H2O crystals at 50 °C has been studied in a hydrofluoric acid and nitric acid solution containing Ni(II). It is found that the growth rate of β-FeF3·3H2O is essentially uninfluenced by the presence of 4 g/kg Ni(II).

AB - Crystallization of nickel fluoride hydrate from mixed pickle acid and the influence of Ni(II) on growth rate of β-FeF3·3H 2O have been studied. Iron and nickel crystallize into an unidentified Fe/Ni fluoride hydrate crystal having the overall mol ratio of Ni, Fe, and F equal to 1:2:8, which is in accordance with the number of fluoride ions needed to balance the positive charges of Ni and Fe. The most probable empirical formula of this material is (FeF3)2NiF 2(H2O)610. By seeded isothermal desupersaturation experiments, growth rate of β-FeF3· 3H2O crystals at 50 °C has been studied in a hydrofluoric acid and nitric acid solution containing Ni(II). It is found that the growth rate of β-FeF3·3H2O is essentially uninfluenced by the presence of 4 g/kg Ni(II).

KW - A1. Supersaturated solutions

KW - A2. Growth from solutions

KW - B1. Acids

KW - B1. Inorganic compounds

UR - https://www.scopus.com/pages/publications/77955277389

U2 - 10.1016/j.jcrysgro.2010.05.017

DO - 10.1016/j.jcrysgro.2010.05.017

M3 - Article

AN - SCOPUS:77955277389

SN - 0022-0248

VL - 312

SP - 2358

EP - 2362

JO - Journal of Crystal Growth

JF - Journal of Crystal Growth

IS - 16-17

ER -

Crystallization of metal fluoride hydrates from mixed hydrofluoric and nitric acid solutions, part II: Iron (III) and nickel (II)

Abstract

Keywords

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