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Interactive IRUG Spectrum
| Section: 6 | Minerals and pigments (MP) | Page: 425 |
Copyright © 1993-2024 Infrared and Raman Users Group (IRUG)
Details
IRUG filename: IMP00425 | Data type: Infrared | IRUG material class: Minerals and pigments (MP) |
Sample type: Reference material | Common name(s): Weddellite, with some whewellite | Chemical/botanical name(s): Calcium oxalate dihydrate, calcium oxalate monohydrate |
CAS name: Weddellite (Ca(C2O4).2H2O), Whewellite (Ca(C2O4).H2O) | Source location 1: Near Biggs, Wasco County, Oregon (OR), US | Sample source 2: Excalibur Mineral Company |
Source location 2: 1885 Seminole Trail, Charlottesville, VA, 22901, US | Color: White | MW (relative): 164.13 (weddellite), 146.11 (whewellite), literature |
Application: MFTIR (Fourier transform infrared microspectroscopy) | Mode: Tran | Cross reference to additional spectra: XRD |
Originating institution name: Philadelphia Museum of Art | Originating institution acronym: PMA | Linear formula: Ca(C2O4)*2H2O (Weddellite), Ca(C2O4)*H2O (Whewellite) |
CAS registry no: 7236-42-2 (Weddellite), 14488-96-1 (Whewellite) | Other analytical methods: GC-MS (gas chromatography-mass spectrometry) |
Related Structure(s)
IRUG Structure Tracking #: 1144 Common Name(s): Weddellite Chemical Name(s): Calcium oxalate dihydrate; Oxalic acid calcium salt CAS Name: Weddellite (Ca(C2O4).2H2O) CAS Registry No: 144-62-7
7236-42-2 IRUG Material Class: Minerals and pigments (MP) Molecular Formula: C2 H2 O4 * Ca * 2H2O Linear Formula: Ca(C2O4)*2H2O MW: 164.13 | |
IRUG Structure Tracking #: 1145 Common Name(s): Whewellite Chemical Name(s): Calcium oxalate monohydrate; Oxalic acid calcium salt CAS Name: Whewellite (Ca(C2O4).H2O) CAS Registry No: 14488-96-1 IRUG Material Class: Minerals and pigments (MP) Linear Formula: Ca(C2O4)*H2O MW: 146.11 |