| Section: 6 | Minerals and pigments (MP) | Page: 328 | 
IRUG filename: IMP00328  | Data type: Infrared  | IRUG material class: Minerals and pigments (MP)  | 
Sample type: Reference material  | Common name(s): Whiting, calcium carbonate, primarily, Pigment White 18 (PW18), CI77220  | CAS name: Carbonic acid calcium salt (1:1)  | 
Sample source 1: Forbes Pigment Collection, Straus Conservation Center, Fogg Art Museum  | Source location 1: 32 Quincy St, Cambridge, MA, 02138, US  | Sample identifier 1: Display 162  | 
Color: White  | Age: 1942, dated  | MW (relative): 100.08, literature  | 
Application: MFTIR (Fourier transform infrared microspectroscopy)  | Mode: Tran  | Originating institution name: Straus Center for Conservation, Harvard University Art Museums  | 
Originating institution acronym: HUAM  | Molecular formula: C Ca O3  | Linear formula: CaCO3 (primarily)  | 
CAS registry no: 471-34-1  |