Inventory number 981 (violet)       

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Bottle Label Kesselbraun Chemical Name/Class Umbra Color Index Name k.A. Color Index Number Molecular Formula Company/Supplier: Joseph Voigt & Co Source Date References: Eibner: Malmaterialienkunde, Verlag Springer, Berlin, A. Eibner (1909) (molecular formula):

Material Type Pigment Origin Vegetable Color Violet Gloss None Brightness Dark Transparency Opaque Amount A lot of Aggregate State Powder Sensitivity to light No Toxicity Flammability Safety & Hazards

   

Container
Container Type	Bottle
Container Material	Glass
Container Stopper	Cork

Raman (Work in progress) Laser 532 nm: Laser 632.8 nm: Laser 785 nm:

Notes: