Abstract
Sabugalite has been synthesized directly from pure chemicals. From chemical, differential thermal and thermogravimetric analyses, its formula is calculated as HA1(UO2/PO4)2·16H2O. The natural relationship between hydrogen autunite, autunite and sabugalite was investigated by means of ion exchange experiments, and its infrared spectrum, electrokinetic properties and solubility studied. An increase in solubility results in a more positive zeta-potential. The cell dimensions have been determined from Guinier-Hägg diffraction data. Synthetic sabugalite crystallizes in the monoclinic system with space group C2/m and cell parameters: a=19.426 Å; b=9.843 Å; c=9.850 Å; α=γ=90°; β=96.161°; V=1,872.54 Å3 and Z=2.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Bulach A (1964) Berechnung von Mineralformeln. VEB Deutscher Verlag für Grundstoffindustrie, Leipzig
Chapman A, Thirlwell L (1964) Spectra of phosphorus compounds. I. IR spectra of orthophosphates. Spectrochim Acta 20:937–947
Cohen M (1935) Precision lattice constants from X-ray powder photographs. Rev Sci Instrum 6:68–74
Farmer V (1974) The infrared spectra of minerals. Mineralogical Society, Monograph 4, p 402
Farzaneh B, Troll G (1977) Quantitative Hydroxyl- und Wasser-Bestimmungsmethode für Minerale, Gesteine und andere Festkörper. Fresenius Z Anal Chem 287:43–45
Frondel C (1951) Studies of uranium minerals (VIII): Sabugalite, an aluminium-autunite. Am Mineral 36:671–679
Frondel C (1958) Systematic mineralogy of uranium and thorium. Geological Survey Bulletin 1064. United States Government Printing Office, Washington
Guillemin C, Pierrot R (1956) La sabugalite du gite de Margnac II Haute Vienne. Bull Soc Fr Mineral Cristallogr 79:179–182
Jeffery P (1975) Chemical methods of rock analysis. Pergamon Press, Oxford
Magin G, Jansen G, Levin B (1959) Synthesis of sabugalite. Am Mineral 44:419–422
Michelsen O (1957) Photometric determination of phosphorus as molybdovanadophosphoric acid. Anal Chem 29:60–62
Miller F, Wilkins C (1952) IR spectra and characteristic frequencies of inorganic ions. Anal Chem 24:1253–1292
Moenke H (1962) Mineralspektren, I. Akademie-Verlag, Berlin
Moenke H (1966) Mineralspektren, II. Akademie-Verlag, Berlin
Ross M, Evans H Jr, Appleman D (1964) Study of the torbernite minerals: The crystal structure of meta-torbernite. Am Mineral 49:1603–1621
Thompson W (1964) The IR spectra of crystalline K2HPO4 and (NH4)2HPO4 with partial assignments. J Chem Soc 371–373
Visser J (1969) Zone indexing. J Appl Crystallogr 2:89
Vochten R, Huybrechts W, Remaut G, Deliens M (1979) Formation of meta-torbernite starting from curite. Crystallographic data and electrokinetic properties. Phys Chem Minerals 4:281–290
Vochten R, Deliens M (1980) Transformation of curite into metaautunite. Paragenesis and electrokinetic properties. Phys Chem Minerals 6:129–143
Vochten R, Piret P, Goeminne A (1981) Synthesis, crystallographic data, solubility and electrokinetic properties of copper-, nickel- and cobalt-uranylphosphate. Bull Minéral 104:457–467
Walenta K (1978) Uranospathite and arsenuranospathite. Mineral Mag 42:117–128
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Vochten, R., Pelsmaekers, J. Synthesis, solubility, electrokinetic properties and refined crystallographic data of sabugalite. Phys Chem Minerals 9, 23–29 (1983). https://doi.org/10.1007/BF00309466
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00309466