sepia, K-12401 2017-05-31T13:02:58+00:00

Pigments Checker


 The ink sac of cuttlefish supplies a brown dye called sepia.

Manufacturer / product code: Kremer 12401
Chemical description: 78% melanin, 10% calcium carbonate, 7% magnesium carbonate, 2% alkaline sulfates and chlorides and 0.8% miscellaneous compounds. 
Color: brown
Color Index: NBr 9
More info:  Kremer PDF
It was used in the 18th century as a brown pigment in ink painting, illustration and calligraphy.

Raman spectroscopy

XRF spectroscopy

 Reflectance spectroscopy