Interactive IRUG Spectrum

IMP00097 Cobalt blue, PB28, CI77346; Daggett, Forbes; PMAJ54; PMA; tran

3998

3739

3479

3220

2960

2701

2441

2182

1922

1663

1403

1144

884

625

-0.02

0.23

0.48

0.74

0.99

Submitter

Section: 6

Minerals and pigments (MP)

Page: 97

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Details

IRUG filename: IMP00097	Data type: Infrared	IRUG material class: Minerals and pigments (MP)
Sample type: Reference material	Common name(s): Cobalt blue, Pigment Blue 28 (PB28), CI77346	Chemical/botanical name(s): Cobalt aluminate
CAS name: C.I. Pigment Blue 28, Aluminum cobalt oxide (Al2CoO4)	Sample source 1: Stanley Daggett	Sample source 2: Forbes Pigment Collection, Straus Conservation Center, Fogg Art Museum
Source location 2: 32 Quincy St, Cambridge, MA 02138	Sample source 3: Forbes Pigment Collection Subset, Philadelphia Museum of Art, Scientific Laboratory, Marigene Butler	Source location 3: Box 7646, Philadelphia, PA, 19101, US
Color: Blue	Age: Dated 1927, at least 71 yrs	Application: MFTIR (Fourier transform infrared microspectroscopy)
Mode: Tran	Originating institution name: Philadelphia Museum of Art	Originating institution acronym: PMA
Molecular formula: Al2 Co O4	Linear formula: CoO*Al2O3	CAS registry no: 1345-16-0 (PB28), 1333-88-6