--- title: "Mössbauer Study of Hydrated Iron Sulfates • CBPF Index" description: "CBPF INDEX is the system that tracks the scientific and technological output of CBPF. It lists the articles, books, technical reports and other publications of the whole CBPF community." canonical_url: "https://index.cbpf.br/en/publicacoes/6ad2a767639f62b11adbb672" locale: en meta: "og:description": "CBPF INDEX is the system that tracks the scientific and technological output of CBPF. It lists the articles, books, technical reports and other publications of the whole CBPF community." "og:image": "https://index.cbpf.br/_og/d/c_Item%2Ctitulo_~TcO2c3NiYXVlciBTdHVkeSBvZiBIeWRyYXRlZCBJcm9uIFN1bGZhdGVz%2Ctipo_Physics%2BNote%2Ccor_~I2E4MmMwMA%2Cautores_~Uy4gSS4gQXJhdWpvOyBKLiBEYW5vbjsgTC4gSWFubmFyZWxsYQ%2Cdetalhe_1991%2Csecao_Publications%2Cp_Ii9lbi9wdWJsaWNhY29lcy82YWQyYTc2NzYzOWY2MmIxMWFkYmI2NzIi%2Cs__cnlSUtQ5pYQ0ay9.png" "og:image:height": "600" "og:image:type": image/png "og:image:width": "1200" "og:title": "Mössbauer Study of Hydrated Iron Sulfates • CBPF Index" "twitter:image": "https://index.cbpf.br/_og/d/c_Item%2Ctitulo_~TcO2c3NiYXVlciBTdHVkeSBvZiBIeWRyYXRlZCBJcm9uIFN1bGZhdGVz%2Ctipo_Physics%2BNote%2Ccor_~I2E4MmMwMA%2Cautores_~Uy4gSS4gQXJhdWpvOyBKLiBEYW5vbjsgTC4gSWFubmFyZWxsYQ%2Cdetalhe_1991%2Csecao_Publications%2Cp_Ii9lbi9wdWJsaWNhY29lcy82YWQyYTc2NzYzOWY2MmIxMWFkYmI2NzIi%2Cs__cnlSUtQ5pYQ0ay9.png" --- > Index of every page on this site: [llms.txt](https://index.cbpf.br/llms.txt) **Physics Note****Published** # **Mössbauer Study of Hydrated Iron Sulfates** **S. I. Araujo; J. Danon; L. Iannarella** 1991 [**Download PDF **0.4 MB](https://index.cbpf.br/files/publicacao/6ad2a767639f62b11adbb672/pdf) [**Contact owner**](mailto:apub@cbpf.br?subject=M%C3%B6ssbauer%20Study%20of%20Hydrated%20Iron%20Sulfates) ## **Publication details**
Authors
S. I. Araujo; J. Danon; L. Iannarella
Type
Physics Note
Status
Published
Publication date
1991
Description
The hydrated iron sulfates amarantite <math>Fe(S0_{4})(OH).3H_{2}0\,\!</math>, copiapite <math>(Mg,Al)Fe^{3+}_{4}(SO_{4})_{6}(OH)_{2}.20H_{2}0\,\!</math> and ungemachite <math>K_{3}Na_{9}Fe(SO_{4})_{6}(OH)_{3}.9H_{2}0\,\!</math> were studied by Mössbauer Spectroscopy (MS) in connection with Differential Scanning Calorimetry (DSC). The effect of the dehydration on the hyperfine parameters at the Fe sites was investigated. For amarantite, the Mössbauer spectrum remained practically unchanged, while the <math>Fe^{3+}\,\!</math> quadrupole splittings for copiapite and ungemachite increased. The <math>Fe^{2+}\,\!</math> quadrupole spliting of ungemachite was also unchanged. We have found out the anisotropy of the recoiless absorption probability for the <math>^{57}Fe\,\!</math> Mössbauer gamma ray in amarantite. The three minerals were found to be highly hygroscopic after the dehydration consequent of the DSC measurements.
Year
1991
Number
CBPF-NF-003/91
Linked to a thesis
No
Linked to a grant
No
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