Crystal structure of anthropogenic Ca2(OH)(AsO4)·2H2O found in the Clara mine, Black Forest, Germany

  • Uwe Kolitsch (Speaker)

Activity: Talks and presentationsPoster presentationScience to Science

Description

The arsenate compound Ca2(OH)(AsO4)·2H2O, known from studies of the system Ca-As-O-H and reported to be stable in the pH range 11-12 (Bothe & Brown 1999, 2002), had a previously unknown unit cell (unindexed powder diffraction pattern ICDD-PDF 18-289) and crystal structure. Its formula was given in the various literature as 4CaO·As2O5·5H2O, Ca3(AsO4)2·Ca(OH)2·4H2O, or Ca4(OH)2(AsO4)2·4H2O. (...)
Period19 Sep 2023
Event titleMinWien2023
Event typeConference
LocationWien, AustriaShow on map
Degree of RecognitionInternational