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Interactive IRUG Spectrum
| Section: 6 | Minerals and pigments (MP) | Page: 224 |
Copyright © 1993-2024 Infrared and Raman Users Group (IRUG)
Details
IRUG filename: RMP00224 | Data type: Raman | IRUG material class: Minerals and pigments (MP) |
Sample type: Reference material | Common name(s): Plaster of Paris, calcium sulfate hemihydrate (bassanite structure) | Chemical/botanical name(s): Sulfuric acid, calcium salt, hydrate (2:2:1) |
CAS name: Plaster of Paris (Ca(SO4).1/2H2O) | Sample source 1: Wadsworth Howland (Wads. Howland) | Sample source 2: Forbes Pigment Collection, Fogg Art Museum (Harvard Art Museums) |
Source location 2: 32 Quincy St, Cambridge, MA 02138, US | Sample identifier 2: 1.01.12, Plaster of Paris | Sample source 3: Forbes Pigment Collection, Winterthur Museum |
Source location 3: 5105 Kennett Pike, Winterthur, DE 19735, US | Color: White | Age: 1917, dated |
Application: Raman microscopy/microspectroscopy | Excitation source (nm): 785 | Mode: Scat |
Originating institution name: Winterthur Museum, Garden & Library | Originating institution acronym: WM | Linear formula: CaSO4 * 0.5 H2O |
CAS registry no: 26499-65-0 |