Pigments through the Ages

              
/ ka • chuh • neel /
Carmine (Cochineal and Kermes) 
 
   

     
 

  1.  Overview  
  2. History
of use
 
  3. Making the
pigment
 
  4. Technical
details
 
  
  About the chemical structure:
        
Chemical name:
Carminic acid, kermesic acid
Formula:
3D model:

grey = carbon, red = oxygen, white = hydrogen
Refractive index:
about 1.6
A swatch of Carmine (Cochineal and Kermes) paint:
  

  How can you identify Carmine (Cochineal and Kermes)?
        
Chemical identification:
n/a

Spectra:
Raman spectra (pdf file download; at University of Florence, Italy)

IR spectra carminic acid (at: Integrated Spectral Data Base System for Organic Compounds, Japan)


  Usage and handling:
        
Permanence:
Toxicity:
poor
non toxic

  Literature:   
        
Artists’ Pigments A Handbook of Their History and Characteristics, Vol. 1, L. Feller, Hrsg., Cambridge University Press, London 1986, p. 255-284

Fleming, S. "The Tale of the Cochineal: Insect Farming in the New World." Archaeology, 36, no. 5 (1983), pp. 68-69, 79.

Cochineal und Karminsäure, Neue Zürcher Zeitung 11.12.1996
Pigmentlexikon


Other purples        
(intro) - Carmine - cobalt violet        

 Sections:  

  purples  

  blues  

  greens  

  yellows  

  oranges  

  reds  

  whites  

  browns  

  blacks  

    
 Look for:    
webexhibits.org/pigments   -   Credits & Feedback  -   Bibliography